SLIDING DOOR SYSTEM

Description

[0001] The present invention relates to a sliding door system with at least one guide rail extending in a longitudinal direction and a door leaf guided thereon by means of at least one drive, wherein the drive has a carriage guided in the guide rail and a fastening device connected to the carriage, by means of which the drive is fastened to an upper edge of the door leaf.

[0002] Sliding door systems of this type are well known. The door leaf is supported by the track via the carriage, so the weight of the door leaf is transferred to the track via the carriage. The carriage rolls along one or more rollers in a track of the track.

[0003] There are sliding door systems in which the track has a track for the carriage, with the carriage of the carriage having one or more rollers on one side that are guided in the track. In such sliding door systems, the door leaf with the mounted carriage is usually hung into the track from the long side of the track. Such a sliding door system is known, for example, from DE 10 2011 012 286 A1, owned by the applicant.

[0004] There are also sliding door systems in which the carriages of a running gear have rollers on both sides, with the track having two parallel tracks on which the carriage rolls with the rollers. With such sliding door systems, the running gears usually have to be inserted at one end of the track, as it is not possible to insert them sideways into the track from the long side of the track. Such carriages are usually used with very large and heavy door leaves. The problem when installing the door leaves is that they are difficult to handle due to their very high weight. With one type of sliding door system, the door leaves are attached to the carriages from below, which means that the door leaves have to be lifted.However, particularly with glass sliding door systems, there is the problem that these door leaves are particularly heavy and, moreover, very fragile, so that even a slight impact on a corner of the door leaf can lead to damage. DE 10 2016 202 774 discloses a sliding door system of the type mentioned above, in which the carriage can be connected to a fastening device attached to an upper edge of the door leaf by sliding it in the longitudinal direction of the guide rail. The connection between the carriage and the fastening device allows for height adjustment, as the carriage and the fastening device are movable relative to each other in the vertical direction.

[0005] Furthermore, WO 2010 / 147845 A2 discloses a displaceable partition wall suspension system comprising one or more roller assemblies that can be jointly attached to a partition wall support element.

[0006] In sliding door systems where the door leaf with mounted carriage is hung into the track from the long side of the track during installation, the carriage is often pivoted into the track below a safety device formed by part of the track. To do this, the door leaf must be set at an angle from the long side of the track, with the door leaf extending diagonally away from the long side. To enable this type of pivoting, however, there must be sufficient space in the track for the carriage to pivot. The track is therefore usually a relatively large distance from a wall to which the track is attached, so that the door leaf, which is guided in the track, is also a relatively large distance from the wall.Hanging the door leaf in a different direction, in which the door leaf extends diagonally in the direction away from the long side, is not possible due to the wall along which the door leaf runs.

[0007] It is therefore the object of the present invention to provide a sliding door system in which a simple construction of the drive is realized, wherein a small wall distance between the door leaf and a wall on which the sliding door system is arranged can be realized.

[0008] The sliding door system according to the invention is defined by the features of claim 1.

[0009] The sliding door system according to the invention enables the carriage to be easily inserted into a compactly designed track and then moved longitudinally along the track to connect it to the door leaf's fastening device. The projections extending longitudinally along the track engage in the corresponding recess, allowing the weight force to be transferred from the fastening device to the carriage via a positive fit. Since the carriage is inserted into the track without the door leaf attached to it, the track can be designed to be very compact, as little or no space is required within the track for the carriage to pivot in.

[0010] The carriage is guided in the guide rail by at least one roller that can roll on at least one track of the guide rail. Preferably, the carriage has one or more rollers on one side only, which are guided in a track of the guide rail. This allows a particularly compact design of the guide rail and running gear. The guide rail can have a rail projection that extends in the longitudinal direction of the guide rail and forms a detachment lock for the carriage. The rail projection is arranged, for example, vertically above the track. The distance in the vertical direction between the rail projection and the track can be selected such that the roller can be pivoted in under the rail projection when the carriage is inserted.The rail projection can also be positioned so close to the track that, when the carriage is inserted, only a few millimeters of clearance remains between the roller and the track, making it impossible to pivot in. In this case, the carriage must be inserted from a longitudinal end of the track.

[0011] The sliding door system according to the invention further has the advantage that the projections, which each engage in a recess, are independent of the at least one fastening means, so that the fastening means is essentially used for pressing the carriage and fastening device against each other in the longitudinal direction of the guide rail, but largely does not transfer any weight force from the fastening device to the carriage.

[0012] For the purposes of the invention, the door leaf refers to the plate-shaped part of the sliding door / door panel. The carriage is an attachment to the door leaf and is therefore not considered part of the door leaf. The at least one fastening means can be a screw, for example. Preferably, the at least one fastening means can be operated from one side of the carriage.

[0013] The sliding door system according to the invention is particularly suitable for glass doors in which the door leaf is made of glass or largely of glass.

[0014] Preferably, the at least one fastening means extends in the longitudinal direction of the track. In this way, the sliding door system according to the invention can be installed in a particularly advantageous manner. After being suspended in the track, the carriage is moved along the track toward an upright door leaf with fastening device until the projections engage in the recesses. The fastening means(s) can then be conveniently inserted and operated from the front of the carriage, i.e., from a side of the carriage running perpendicular to the longitudinal direction of the track.

[0015] Preferably, the projections taper towards one end, with the respective recess having a shape adapted to the corresponding projection. This ensures that, when a projection engages the recess, a guiding function is realized between the recess and the projection, thereby aligning the carriage and the fastening device. This allows, for example, the fastening device to be inserted easily.

[0016] It can preferably be provided that the projection tapers at a taper angle, wherein the recess tapers at the same angle.

[0017] With a tapered projection, it can also be provided that the maximum diameter of the projection is larger than the maximum diameter of the recess. In this way, it can be ensured that the projection cannot be fully inserted into the recess and thus, when the drive is attached to the fastening device, the connection between the drive and the fastening device is made exclusively via the fastening means and the at least one projection engaging in the at least one recess. In other words: the opposing surfaces of the drive and the fastening device, on which the projections or recesses are arranged, do not touch when the drive is attached to the fastening device; instead, a small gap remains.

[0018] It can also be provided that the projections have a length in the longitudinal direction of the guide rail that is greater than the extension of the respective recess or of a tapered section of the recess adapted to the projection in the longitudinal direction of the guide rail. If the recess is designed as a blind hole, the projection thus has a greater length than the depth of the recess. According to the invention, it can thus also be achieved that the projection cannot fully immerse itself in the recess, so that a connection between the fastening device and the carriage is made essentially via the projection and the recess and a small gap remains between the opposing surfaces of the running gear and fastening device.

[0019] This ensures that when fastened, there is no or almost no play between the fastening device and the carriage and that the weight force can be advantageously transferred to the recess via the projection.

[0020] The invention can provide four projections and recesses. If there are multiple projections, each of which engages one of the recesses, it is preferably provided that the at least one fastening means is arranged between two of the projections to prevent jamming between the projections and recesses.

[0021] In a preferred embodiment of the invention, the at least one fastening means comprises an operating element on its side facing a first side edge of the door leaf in the longitudinal direction of the guide rail. This allows the fastening means to be operated in a particularly simple manner. In the embodiment of the fastening means as a screw, the operating element can be the screw head, for example.

[0022] Preferably, the carriage is arranged on the side of the fastening device facing a first side edge of the door leaf in the longitudinal direction of the guide rail. In a sliding door system using two carriages, the carriages can thus be spaced very far apart from each other and positioned very close to the respective side edge, thus ensuring particularly good guidance of the door leaf.

[0023] Preferably, the at least one fastening means extends through the carriage. The at least one fastening means can thus be fastened particularly easily by inserting it into the carriage from the side of the carriage facing away from the fastening device and pushing it through the carriage until the fastening means can engage the fastening device. Furthermore, the fastening means can be operated particularly easily in this way on the side facing the first side edge of the door leaf in the longitudinal direction of the guide rail.

[0024] Preferably, the sliding door system comprises a roller block with two rollers arranged on the carriage, wherein the roller block is pivotably mounted on the carriage via an axis extending horizontally in a direction transverse to the longitudinal direction of the guide rail. Such a roller block advantageously compensates for unevenness, allowing the door leaf to run particularly smoothly in the guide rail, ensuring that both rollers bear approximately the same load.

[0025] The design of a sliding door system with a carriage with a roller block with two rollers also has independent inventive significance and can be implemented independently of the manner in which the carriage is attached to the fastening device.

[0026] The invention thus also relates to a sliding door system with at least one guide rail extending in a longitudinal direction and a door leaf guided therein with at least one running gear, wherein the running gear has a carriage guided in the guide rail and a fastening device connected to the carriage, via which the running gear is fastened to an upper edge of the door leaf, wherein a roller block with two rollers is arranged on the carriage, wherein the roller block is pivotably mounted on the carriage via an axis extending horizontally in a direction transverse to the longitudinal direction of the guide rail.

[0027] Preferably, the roller block has a plate on which the rollers are rotatably mounted, with the axle between the rollers engaging the plate. This allows the roller block to extend only slightly in a horizontal direction transverse to the longitudinal direction of the guide rail, thus permitting a compact design of the carriage. Furthermore, the engagement of the axle between the rollers with the plate means that the roller block functions like a rocker. If, due to an uneven surface or, for example, dirt, one of the rollers is lifted off the track, the other roller is simultaneously pushed towards the track, ensuring that one roller of the carriage is always in contact with the track. This enables particularly advantageous guidance of the carriage in the guide rail.

[0028] In a preferred embodiment of the invention, the axle has a taper, wherein the at least one fastening means interacts with the taper of the axle and blocks the axle in a horizontal direction transverse to the longitudinal direction of the guide rail. In other words: the fastening means provided for fastening the carriage to the fastening device also ensures that, in the assembled state, the axle cannot slip out in a horizontal direction transverse to the longitudinal direction of the guide rail. This can be achieved by arranging the at least one fastening means orthogonal to the axle and extending at least partially into the recess region of the axle formed by the taper. For example, the axle can be fastened using a nut.If this should accidentally come loose, the fastening device prevents the axle from slipping out of the carriage, thus preventing the door leaf from tipping out of the track.

[0029] In a particularly preferred embodiment, two fastening means can be provided that run parallel and are arranged vertically one above the other. With such a design of the sliding door system, the axis can extend between the two fastening means, with both fastening means cooperating with the tapered portion. This allows the axis to be held in place in a particularly advantageous manner.

[0030] It is preferably provided that the carriage has a height adjustment device by means of which the at least one roller can be adjusted in the vertical direction.

[0031] In this case, it can be provided that the height adjustment device is formed at least partially by an eccentric profile of a section of the roller's axis. In a design of the sliding door system with a roller block mounted on an axis with two rollers, it can also be provided that the height adjustment device is formed by an eccentric profile of a section of this axis. In this case, the entire roller block is adjusted in the vertical direction.

[0032] The eccentric axis allows the roller or roller block to be easily adjusted by rotating the axis. This causes the roller or roller block to move vertically relative to the other parts of the carriage. This allows for a simple design of the height adjustment device.

[0033] In a sliding door system in which the carriage has one or more rollers that are not arranged on a roller block, the axes of these rollers can be secured by means of the at least one fastening means in a manner similar to that described above with respect to the embodiment with a roller block.

[0034] Since the fastening of the axle must be released during the height adjustment by means of the height adjustment device according to the invention via an eccentric course of a section of the respective axle, it can be ensured by means of at least one fastening means that the axle cannot slip out of the carriage when the height device is adjusted.

[0035] In the sliding door system according to the invention, it is preferably provided that the fastening device is designed as a clamping device which has clamping jaws on both sides of the door leaf, wherein one clamping jaw is arranged on a main body of the fastening device and one clamping jaw is formed by a clamping plate fastened to the main body. By providing the fastening device as a clamping device, the fastening device can be easily fastened to a door leaf without, for example, fastening holes having to be provided on the door leaf. As a result, the fastening device can be used particularly advantageously in conjunction with a door leaf which is made entirely or partially of glass. As a result, the fastening device is structurally particularly simple.

[0036] The design of the fastening device as a clamping device also has independent inventive significance and can also be implemented independently of the previously described design of the sliding door system with a special fastening of the carriage to the fastening device or the design of the carriage with a roller block.

[0037] The invention thus also relates to a sliding door system with at least one guide rail extending in a longitudinal direction and a door leaf guided thereon with at least one running gear, wherein the running gear has a carriage guided in the guide rail and a fastening device connected to the carriage, via which the running gear is fastened to an upper edge of the door leaf, wherein the fastening device is designed as a clamping device which has clamping jaws on both sides of the door leaf, wherein a clamping jaw is arranged on a main body of the fastening device and a clamping jaw is formed by a clamping plate fastened to the main body.

[0038] Preferably, the clamping plate is made of steel, and the main body is preferably a cast part. For example, the main body can be formed as a zinc die-cast part.

[0039] Cast bodies are particularly easy to manufacture. However, unlike steel, cast parts generally have only a low degree of elasticity. By providing a steel clamping plate, at least one of the parts forming a clamping jaw can be elastically deformed to a certain extent. This ensures that a certain amount of compensation can be achieved if the door leaf clamped between the clamping jaws changes shape. For example, the clamping force causes the steel plate to elastically deform. If, for example, the door leaf is made of laminated safety glass (VSG), it can happen that the door leaf gradually becomes slightly thinner in the clamping area due to a change in the thickness of the film under pressure. In this case, the steel plate recovers accordingly, so that the clamping force remains essentially constant and the door leaf is held securely to the fastening device.By making the clamping plate out of steel, the material thickness on this side of the drive can be reduced, allowing for a particularly compact design. This allows, for example, a very small clearance between the door leaf and the wall.

[0040] Preferably, a pressure plate is arranged on the clamping jaw formed by the main body, which pressure plate is adjustable toward the door leaf to generate the clamping force and presses against the door leaf. For example, the pressure plate, which can be made of steel, is attached by means of screws, via which the pressure plate can be adjusted. This allows the clamping force to be precisely adjusted. In the exemplary embodiment with a pressure plate arranged on the main body, the clamping force generated by the pressure plate is counteracted by the clamping plate, and the previously described elastic deformation of the clamping plate can occur.

[0041] A glass shim can be provided on the clamping jaws, for example on the clamping plate and the pressure plate, to protect the door leaves made of glass.

[0042] Preferably, the clamping plate rests against a fastening surface of the fastening device, wherein the fastening surface, when fastened to the door leaf, runs at an acute angle to a main plane of the door leaf. The fastening surface is thus inclined towards the main plane of the door leaf. This ensures that the clamping plate, which rests against the fastening surface, also runs at an acute angle to the main plane of the door leaf, so that the clamping plate rests against the door leaf at the lowest possible area. The clamping plate can thus particularly advantageously form a counterbearing for the clamping force generated, for example, by the pressure plate. Such a design of the fastening device also advantageously enables elastic deformation of the clamping plate, since the clamping force acts on the clamping plate with a relatively long lever.The inventive design of the fastening device enables a particularly stable fastening of the door leaf to the fastening device.

[0043] The clamping plate can be attached to the main body using screws, for example. The screws can, for example, penetrate the clamping plate and engage the mounting surface. In this case, the screws can be arranged so that they are not perpendicular to the mounting surface and thus also not perpendicular to the clamping plate, but rather slightly angled, so that the lower part of the screw head rests against the clamping plate. This ensures that the screws counteract the clamping force in a particularly advantageous manner.

[0044] In the sliding door system according to the invention, a damper unit with a retraction function arranged in the track and with a coupler arranged on the carriage can also be provided, wherein the coupler engages in a locking manner with an engagement part of the damper unit, wherein the damper unit initially brakes the door leaf as it moves towards an end position and then drives it into the end position, and wherein the coupler is adjustable in a horizontal direction transverse to the longitudinal direction of the track and / or in a vertical direction. The provision of the damper unit ensures that the door cannot be moved into its end position without braking, but is gently braked and moved into the end position at a defined speed.By providing a coupler that is adjustable horizontally transversely to the longitudinal direction of the guide rail and / or vertically, the coupler can be advantageously adjusted to the damper unit arranged in the guide rail, so that even in installation situations where the guide rail cannot be optimally arranged but, for example, runs diagonally in any direction, it is ensured that the coupler can engage with the damper unit in a locking manner.

[0045] The invention thus also relates to a sliding door system according to the above embodiments with at least one guide rail extending in a longitudinal direction and a door leaf guided thereon with at least one running gear, wherein the running gear has a carriage guided in the guide rail and a fastening device connected to the carriage, by means of which the running gear is fastened to an upper edge of the door leaf, wherein the sliding door system has a damper unit arranged in the guide rail with a retraction function and a coupler arranged on the running gear, wherein the coupler engages in a locking manner with an engagement part of the damper device, wherein the damper unit first brakes the door leaf during travel towards an end position and then drives it into the end position, wherein the coupler is adjustable in a horizontal direction transverse to the longitudinal direction of the guide rail and / or in a vertical direction.

[0046] Adjustment of the coupler in a horizontal direction transverse to the longitudinal direction of the guide rail can be achieved, for example, by placing spacers, which can be plate-shaped, for example, between a contact surface for the coupler and the coupler itself. For greater flexibility, several plates can be provided, allowing one or more of the plates to be installed to adjust the coupler as needed.

[0047] The coupler can be adjusted vertically, for example, via a slotted hole. It is also possible to mount the coupler in two different vertical positions.

[0048] The coupler can be attached using screws, for example. The screws can be used to pull the coupler against a support surface, for example. When adjusting the coupler horizontally, the spacer, for example, one or more of the plates, is placed between the coupler and the support surface, so that the screws pull the coupler against the spacer. For vertical adjustment, several holes can be provided, for example, into which the screws are inserted.

[0049] The invention also relates to a method for assembling a sliding door system comprising the following steps: Attaching a guide rail to an installation location, pivoting at least one carriage of a drive into the guide rail, fastening a fastening device of the drive to an upper edge of the door leaf, setting up the door leaf below the guide rail, with the door leaf with the upper edge in the guide rail, moving the carriage in the longitudinal direction of the guide rail until the carriage is in contact with the fastening device, fastening the carriage to the fastening device, preferably with at least one fastening means.

[0050] The assembly procedure must be carried out with the sliding door system according to the invention.

[0051] The invention will be explained in more detail below with reference to the following figures. Figure 1 shows a schematic perspective view of the sliding door system according to the invention, Figure 2 shows a schematic plan view of the door leaf with drives attached to the door leaf, Figures 3a and 3b show schematic detailed views of the drive and the fastening device, Figure 4 shows a schematic sectional view of the carriage, Figures 5a and 5b show schematic detailed views of the coupler of the drive according to the invention, and Figure 6 shows a schematic sectional view of the fastening device.

[0052] In Figure 1 a sliding door system 1 according to the invention is shown schematically in a perspective view.

[0053] The sliding door system 1 according to the invention has a longitudinally extending guide rail 3 in which a door leaf with a Figure 1The longitudinal direction is indicated by a double arrow. The guide rail 3 has a substantially C-shaped cross-section, with the interior of the guide rail 3 being concealed from the viewer by a cover 5.

[0054] The guide rail 3 forms a track 7 for the drive 4. Above the track 7, a rail projection 6 is arranged, which extends in the longitudinal direction of the guide rail 3 and forms a detachment protection for the door leaf 100.

[0055] In Figure 2 The door leaf 100 is shown in a schematic side view with two drives 4 attached to it. The drives 4 are arranged on an upper edge 100a of the door leaf 100.

[0056] The drive 4 consists of a carriage 9 and a fastening device 11. The fastening device 11 is clamped to the door leaf 100. The carriage 9 is attached to the fastening device 11 via fastening means 27 (not shown).

[0057] As from Figure 2 As can be seen, the drives 4 are arranged in a mirror-inverted manner, i.e., the carriage is arranged on the side of the fastening device 11 facing the respective outer edge 100b of the door leaf 100. This allows the carriages 9 to be arranged very close to the outer edge 100b, creating a large distance between the carriages 9, thereby achieving particularly smooth running of the door leaf 100.

[0058] The carriages 9 each have two rollers 13, which are rotatably attached to a roller block 15. The roller block 15 is mounted on an axle 17, wherein the axle 17 is located between the two rollers 13. In particular, the roller block 15 can be plate-shaped. Via the bearing of the axle 17, the roller block can perform a rocker-like movement so that if one of the rollers 13 threatens to lift off, the other roller 13 is pushed towards the track. The rollers 13 can roll on the track 7 of the guide rail 3. The design of the carriage 9 allows the door leaf 100 to be guided in the guide rail 3 with particularly smooth running and ensures that both rollers 13 carry approximately the same load.

[0059] The Figure 1The rail projection 6 shown can be arranged at a vertical distance from the track 7 that is adapted to the rollers 13, so that the rollers 13 can be pivoted in under the rail projection when the carriage 9 is inserted. In the assembled state of the door leaf 100, the rail projection 6 prevents the rollers 13 from jumping out of the track.

[0060] In Figures 3a and 3b Detailed representations of the fastening device 11 and the carriage 9 are shown to illustrate how the carriage 9 is attached to the fastening device 11.

[0061] Several projections 19 are arranged on the carriage 9. The fastening device 11 has recesses 21 adapted to the projections 19. The carriage 9 can be pivoted into the guide rail 3 so that the rollers 13 are arranged on the track 7. Furthermore, the fastening device 11 can be fastened to the upper edge 100a of the door leaf 100 and the door leaf 100 can be arranged below the guide rail 3. The carriage 9 can now be moved in the longitudinal direction of the guide rail. The longitudinal direction of the guide rail is in Figure 3amarked by the double arrow. When the carriage 9 hits the fastening device 11, the projections 19 can engage in the recesses 21. Because the projections 19 taper in the longitudinal direction of the guide rail and the recesses 21 have a shape adapted to the projections 19, a guiding function occurs between the projections 19 and the recesses 21, so that the carriage 9 and the fastening device 11 are aligned with one another. The carriage 9 can now be fastened to the fastening device 11 via the fastening means 27. The fastening means 27 can, for example, be screws that extend in the longitudinal direction of the guide rail and through the carriage 9. As a result, the fastening means 27 can advantageously be operated from the outer sides of the door leaf 100 in the longitudinal direction of the guide rail.

[0062] As from Figure 3aAs can be seen, the projections 19 have a length in the longitudinal direction of the guide rail that is greater than the extension of the recesses 21 in the longitudinal direction of the guide rail 3. This ensures that the projections 19 do not fully penetrate into the recess 21 when the carriage 9 is fastened to a fastening device 11. Thus, a small gap remains between the opposing surfaces 9a, 11a of the carriage 9 and the fastening device 11 in the fastened state. This ensures that forces transverse to the longitudinal direction of the guide rail 3 are absorbed exclusively by the projections 19 and the recesses 21 as well as the fastening means 27.

[0063] In Figure 3b a plan view of the surface 9a of the carriage 9 is shown. As can be seen from Figure 3bAs can be seen, four projections 19 are provided. Between each two projections 19, a through hole 23 is provided for the fastening means 27. The fact that the fastening means 27 are arranged between each of the projections 19 ensures that when the carriage 9 is fastened to the fastening device 11, no jamming can occur between a projection 19 and a recess 21.

[0064] In Figure 4 the carriage 9 is shown in a partially sectioned detailed view.

[0065] The axle 17 extends through a bearing bore 24 in the carriage 9, through which the roller block 15 is mounted. On the side of the carriage 9 opposite the roller block 15, the axle 17 is secured by means of a nut 25. Furthermore, the axle has a taper 17a. The through-holes 23 for the fastening means 27 are arranged such that, when the fastening means 27 are inserted into the through-holes 23, the fastening means 27 extend partially in the vertical direction into the recess area of ​​the axle 17 formed by the taper 17a and block the axle 17 in its longitudinal direction. This prevents the axle 17 from slipping out of the bearing bore 24.

[0066] Furthermore, the axle 17 has a section 17b with an eccentric profile. This allows for height adjustment. After loosening the nut 25, the axle 17 can be rotated, thereby raising or lowering the roller block 15. The axle 17 is then secured in the corresponding position by means of the nut 25.

[0067] In the sliding door system according to the invention, a damper unit with a retraction function can be provided, in particular, in the guide rail 3. The damper unit with retraction function can initially brake the door leaf 100 when moving to one of the end positions and then drive it into the end position. The end position is, for example, a stopper against which the carriage 9 rests in the end position.

[0068] A coupler 29 is arranged on the drive 4 to interact with the damper unit. The coupler 29 can interact with an engagement part of the damper unit, whereby the damper unit can exert a force on the drive 4.

[0069] In the Figures 5a and 5b Detailed views of the coupler 29 are shown.

[0070] Preferably, the coupler 29 is arranged on the fastening device 11.

[0071] The coupler 29 is attached to the fastening device 11 by means of two screws 31. The screws pull the coupler toward a contact surface 35. The height of the coupler 29 can be adjusted by arranging the screws 31, for example, in a slotted hole extending vertically. It is also possible to provide several holes for each screw 31, arranged vertically one above the other, so that the height of the coupler 29 can be adjusted by selecting different holes for the screws 31.

[0072] Furthermore, the coupler 29 can be adjusted in a horizontal direction transverse to the longitudinal direction of the guide rail 3.

[0073] As from Figure 5bAs can be seen, it can be provided that spacers in the form of thin plates 33 are arranged between the coupler 29 and the contact surface 35. By adding or removing one of the plates 33, the position of the coupler 29 can thus be changed in the horizontal direction transverse to the guide rail.

[0074] The adjustment of the coupler 29 ensures that even if the guide rail is not 100% straight due to, for example, sloping walls, the coupler 29 interacts reliably with the damper unit with retraction function.

[0075] In Figure 6 a schematic sectional view of the fastening device 11 is shown.

[0076] The fastening device 11 is designed as a clamping device and has clamping jaws 37a, 37b on both sides of the door leaf 100. One clamping jaw 37a is formed by a main body 11b of the fastening device and has a pressure plate 38 that can be adjusted by means of screws. The second clamping jaw 37b is formed by a clamping plate 39.

[0077] The pressure plate 38 and the clamping plate 39 can, for example, be made of steel, whereas the main body 11b is a cast part.

[0078] The clamping plate 39 is attached to a fastening surface 11c, wherein the fastening surface extends at an acute angle to the main plane of the door leaf 100. As a result, the clamping plate 39 also extends at an acute angle to the main plane of the door leaf, so that, as can be seen from Figure 6 As can be seen, the clamping plate 39 rests with its lower end against the door leaf 100.

[0079] The pressure plate 38 presses against the door leaf 100 to generate a clamping force. Because the clamping plate 39 rests against the door leaf 100 with its lower end, the clamping force also acts on the clamping plate 39 at this lower end.

[0080] Because the clamping plate 39 is made of steel, it can deform elastically due to the applied force. This has the advantage that, when the clamping plate 39 is fastened, it can be provided to deform slightly elastically due to the pressure against the door leaf 100. For example, with door leaves made of laminated safety glass, it can happen that a film located in the glass thins over a certain period of time due to the pressure, which can lead to a reduction in the thickness of the door leaf 100. The elastic deformation of the clamping plate 39 can compensate for this change in thickness, so that the same or approximately the same clamping force is always applied to the door leaf 100.

[0081] If the door leaf 100 is designed from glass, a glass shim 43 can be provided between the pressure plate 38 and the door leaf 100 or between the clamping plate 39 and the door leaf 100 to protect the glass.

[0082] The clamping plate 39 is attached to the mounting surface 11c by screws 41. The screws 41 may have an oblique profile, meaning that they are not orthogonal to the mounting surface 11c and the clamping plate 39. This ensures that the screws 41, for example, rest against the clamping plate 39 with their lower end of the screw head. This can ensure, in a particularly advantageous manner, that the screws 41 do not risk loosening in the event of elastic deformation of the clamping plate 39.

[0083] By means of the sliding door system according to the invention, it can be achieved in particular that a door leaf 100 can be arranged at a very small distance from a wall to which the guide rail 3 is fastened, since the guide rail 3 can be designed very compactly and by means of the drive 4 according to the invention, the door leaf can be arranged very close to the track 7 and thus very close to the wall. LIST OF REFERENCE SYMBOLS

[0084] 1 Sliding door system 3 Track 4 Running gear 5 Cover 6 Rail projection 7 Track 9 Carriage 9a Carriage surface 11 Fastening device 11a Fastening device surface 11b Main body 11c Fastening surface 13 Rollers, roller 15 Roller block 17 Axle 17a Taper 17b Section 19 Projection 21 Matched recesses 23 Through hole 24 Bearing hole 25 Nut 27 Fastener 29 Coupler 31 Screw 33 Thin plates 35 Contact surface 37a Clamping jaw 37b Clamping jaw 38 Pressure plate 39 Clamping plate 41 Screws 43 Glass shim 54 Running gear 100 Door leaf 100a Top edge 100b Side edge

Claims

1. Sliding door system (1) comprising at least one runner (3) extending in a longitudinal direction and a door leaf (100) guided thereon by means of at least one slider (4), wherein the slider (4) comprises a carriage (9) guided in the runner (3) and a fastening device (11) connected to the carriage (9), via which the slider (4) is fastened to an upper edge (100a) of the door leaf (100), wherein the carriage (9) is fastened to the fastening device (11) by at least one fastener (27), wherein the at least one fastener (27) presses the carriage (9) and the fastening device (11) against each other in the longitudinal direction of the runner (3), characterized in that a plurality of projections (19) is provided on the carriage (9), which extend in the longitudinal direction of the runner (3) and each engage a recess (21) of the fastening device (11) and / or a plurality of projections (19) is provided on the fastening device (11), which extend in the longitudinal direction of the runner (3) and each engage a recess (21) of the carriage (9), or one projection (19) is provided on the carriage (9) , which extends in the longitudinal direction of the runner (3) and engages a recess (21) of the fastening device (11), and one projection is provided on the fastening device (11), which extends in the longitudinal direction of the runner (3) and engages a recess (21) of the carriage (9), wherein, due to the engagement of the projections (19) and the recesses (21), the weight force is transmitted from the fastening device (11) to the carriage (9) in a form-fitting manner.

2. Sliding door system of claim 1, characterized in that the at least one fastener (27) extends in the longitudinal direction of the runner (3).

3. Sliding door system of claim 1 or 2, characterized in that the projections (19) taper towards their ends, the recesses (21) having a shape adapted to the respective projection (19).

4. Sliding door system of claim 3, characterized in that the projections (19) have a length in the longitudinal direction of the runner (3) that is longer than the extension of the recesses (21) in the longitudinal direction of the runner.

5. Sliding door system of one of claims 1 to 4, characterized in that the at least one fastener (27) has an operating element on its side facing a first lateral edge (100b) of the door leaf (100) in the longitudinal direction of the runner (3).

6. Sliding door system of one of claims 1 to 5, characterized in that the carriage (9) is arranged on the side of the fastening device (11) facing a first lateral edge (100b) of the door leaf (100) in the longitudinal direction of the runner (3).

7. Sliding door system of one of claims 1 to 6, characterized in that the at least one fastener (27) extends through the carriage (8).

8. Sliding door system of one of claims 1 to 7, characterized by a roller block (15) with two rollers (13), which is arranged on the carriage (9), the roller block (15) being pivotally supported on the carriage (9) by an axis (17) extending horizontally in a direction transverse to the longitudinal direction of the runner (3).

9. Sliding door system of claim 8, characterized in that the roller block (15) comprises a plate on which the rollers (13) are rotatably supported, the axis (17) engaging the plate between the rollers (13).

10. Sliding door system of claim 8 or 9, characterized in that the axis (17) has a taper (17a), the at least one fastener (27) cooperating with the taper (17a) of the axis (17) and blocking the axis (17) in a horizontal direction transverse to the longitudinal direction of the runner (3).

11. Sliding door system of one of the preceding claims, characterized in that the carriage (9) comprises a height adjustment device via which the at least one roller (13) is adjustable in the vertical direction, the height adjustment device being formed preferably by an eccentric course of a section (17b) of the axis (17).

12. Sliding door system of one of claims 1 to 11, characterized in that the fastening device (11) is designed as a clamping device having clamping jaws (37a, 37b) on either side of the door wing (100), one clamping jaw (37a) being arranged on a main body (11b) of the fastening device (11), and one clamping jaw (37b) being formed by a clamping plate (39) fastened to the main body (11b).

13. Sliding door system of claim 12, characterized in that the clamping plate (39) is made of steel and the main body (11b) preferably is a cast part.

14. Sliding door system of claim 12 or 13, characterized in that the clamping plate (39) abuts a fastening surface (11c) of the fastening surface (11), the fastening surface (11c) extending under an acute angle to a main plane of the door wing (100) in the state fastened to the door wing (100).

15. Sliding door system of one of claims 1 to 14, characterized by a damper unit with a retracting function, arranged in the runner (3), and a coupler (29) arranged on the slider, which lockingly engages an engagement part of the damper unit, the damper unit first braking the door wing (100) during movement towards an end position and then driving the same to the end position, the coupler (29) being adjustable in a horizontal direction transverse to the longitudinal direction of the runner (3) and / or in a vertical direction.