Sliding door device having a sliding door
The sliding door device addresses sealing inefficiencies by using door lever mechanisms and support devices for seamless door passage sealing, reducing complexity and friction, and enabling efficient, cost-effective operation.
Patent Information
- Authority / Receiving Office
- AU · AU
- Patent Type
- Applications
- Current Assignee / Owner
- HAWA SLIDING SOLUTIONS AG
- Filing Date
- 2025-01-28
- Publication Date
- 2026-07-23
AI Technical Summary
Existing sliding doors face challenges in efficiently sealing door passages without increasing thickness or complexity, and require separate guide rails for door elements, which can lead to friction and operational inefficiencies.
A sliding door device with a mounting body equipped with door lever mechanisms and support devices that allow door elements to rotate and swing outwards to seal the passage, using magnetic or mechanical interactions with the boundary element to minimize friction and simplify construction, while being driven manually or automatically.
The solution enables seamless sealing of door passages with reduced component count, lower manufacturing costs, and enhanced operational efficiency, allowing for a virtually maintenance-free operation with improved sealing and reduced friction.
Smart Images
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Abstract
Description
This problem is solved by means of a sliding door device according to claim 1 and a sliding door according to claim 17. Advantageous embodiments of the invention are specified in further claims. The sliding door device, which serves for closing off a door passage having at least one access cross-section, comprises a sliding door, - which by means of at least one door bearing device is supported displaceable along a displacement axis, - which is displaceable along the displacement axis in a closing direction, which is opposite to an opening direction, up to a boundary element which delimits the door passage and the at least one access cross-section on one side, and - which comprises a mounting body, which is connected to the door bearing device and which pivotally supports a first door element on a first side or a first door element on a first side and a second door element on a second side, each of which door elements being movable outwards from a rest position near the mounting body into a closing position in order to close off the corresponding access cross-section. According to the invention it is provided, - that the mounting body is equipped with at least two door lever mechanisms, each of which comprising a central bearing device, and, for each of the door elements, a door lever and a door element bearing device, - that a first door lever end piece of the door levers is held rotatably by a central shaft in the associated central bearing device, and that a second door lever end piece of the door levers is held rotatably by a door element shaft in the associated door element bearing device, which is connected to the associated first or second door element, - that the door levers of the at least two door lever mechanisms, together with the associated first or first and second door element, are rotatable in one direction of rotation towards the mounting body into the rest position, and from the rest position in the opposite direction of rotation into the closing position, and - that the sliding door is connected, on a first door front face facing the boundary element, to at least one support device, which serves to interact with the boundary element and to transmit a reaction force from the boundary element to the first door element or to the first and second door elements. The rotation of the door levers, together with the associated first door element or both the first and second door elements, in a direction of rotation towards the mounting body into the rest position, and from the rest position in the opposite direction of rotation into the closing position, takes place until the respective position is reached, with a rotational angle that is preferably less than 90°. The angle of rotation depends on the length of the door levers and the distance of the access cross-sections from the displacement axis. A door passage is usually enclosed by a door frame which defines a short passageway having an access cross-section on both sides. At least one of the access cross-sections can be closed off by means of the first or second door element of the inventive sliding door in such a way that the door passage is closed off flush on one or both sides of the sliding door. The door elements fill the access cross-sections of the door passage, preferably forming a tight seal. Preferably, the door elements overlap parts of the door frame or adjacent wall elements or profile sections in such a way that a tight seal is formed and, for example, a sealing element can be enclosed. The mounting body of the sliding door is preferably of a narrow design, so that the thickness of the sliding door, i.e. its diameter perpendicular to the displacement axis, is essentially determined by the thickness of the door elements. The door elements are preferably provided with recesses into which components connected to the mounting body, such as parts of the door lever mechanism or parts of the displacement devices, can be recessed. The mounting body can therefore be equipped with mechanisms without increasing the thickness of the sliding door. The mounting body, which is preferably provided with mounting holes, is, for example, a narrow metal structure aligned in a single plane or a narrow plate made of wood or plastic. The sliding door is held moveable at the top or at the top and bottom each by a door bearing device, which typically comprises a support rail or guide rail that interacts with at least one displacement device or guide mechanism. The support rail or guide rail may be held stationary, whilst the displacement device or guide mechanism is connected to the sliding door. Alternatively, the support rail or guide rail may also be connected to the sliding door, whilst the displacement device or guide mechanism is stationary. The support rail and / or the guide rail may extend as far as the door opening or the boundary element. It is essential that the mounting body can be moved across the required area. The displacement devices may be conventional carriages with roller wheels, which are mounted so as to slide within a suitably designed support rail. The displacement devices may also comprise sliding elements that can slide along a support rail. Furthermore, the displacement devices may form part of a linear motor or be connected to at least part of a linear motor. The movement of the displacement devices, and thus of the mounting body, is always linear. No separate guide rails are required for the door elements connected to the mounting body. The sliding door can be moved manually and brought into the closed position. In preferred embodiments, however, an electric, mechanical or electromechanical drive device is provided, by means of which the sliding door can be moved automatically along the support rail over at least part of its travel, preferably until the door element or door elements are brought into the closed position. For example, at least one electric drive motor is integrated into one of the displacement devices; which directly drives the displacement devices and, for example, engages via a gear with a toothed belt provided within the support rail. A drive motor may also be provided separately from the sliding door and connected to the door element via a drive element, such as a drive belt. Alternatively, the drive device may be implemented as a linear motor, which preferably comprises parts of the displacement devices or is connected to them. Furthermore, a mechanical or magnetic pull-in device may be provided as the drive device, by means of which the sliding door is engaged before reaching the closing position and moved into the closing position. For example, the sliding door is moved manually until it is engaged by the pull-in device and moved into the closing position. Subsequently, the sliding door can be manually engaged and returned from the closing position, whereby the door element or door elements are moved back from the closing position towards the mounting body into the rest position, and the sliding door can, for example, be retracted into a door compartment. During this process, the retraction mechanism is re-tensioned or re-loaded and, for example, disengaged from the sliding door or from a coupling element provided in the support rail. If no support device is provided and the door elements are guided against the boundary element, a force is transmitted from them to the door levers; in the rest position of the sliding door, these forces are preferably directed forwards, which is why only a small torque acts on the door levers. Rotation of the door levers is also prevented by adhesive forces transmitted from the boundary element to the opposing door front faces. In all configurations of the sliding door, the door levers are preferably directed forwards towards the boundary element, particularly in straight or inclined designs. The swivelling out of the door elements is only made possible by at least one inventive support device. Support devices may take various forms and fulfil different functions, all of which, however, serve to enable the door elements to move out largely friction-free when the sliding door reaches the boundary element. For example, provision may be made for a support device to counteract the adhesive forces that block the door front faces. Instead, the support device forms a bearing arrangement at the door front faces, which enables the door front faces to be moved along the boundary element with virtually no friction. Alternatively, support devices may be provided which convert a force exerted by the boundary element parallel to the displacement axis into a force oriented perpendicular to the displacement axis, which acts on at least one of the door elements. The support device and the boundary element may interact magnetically and / or mechanically. Force transmission may therefore take place via direct contact or via magnetic interaction between magnets of opposing polarity, which are provided in the boundary element on the one hand and on the support device on the other. The boundary element is thus integrated into the sliding door device as a functional element by means of the support device, which is why the sliding door and the mechanisms arranged therein can be designed much more simply. The simpler construction of the sliding door reduces both its manufacturing costs and its weight, making the sliding door easier to operate and / or drive. Thanks to the simpler design of the sliding door, the number of components is reduced. The remaining components can be made more robust, meaning that the resulting sliding door can operate virtually maintenance-free for a very long service life. The interaction between the support device and the boundary element initiates and / or supports the process of the door elements swinging out. The support device allows forces from the boundary element to be effectively transferred to the door element or door elements, whilst preventing forces that would hinder the lateral ejection or swinging out of the door elements. As the door elements move into the closing position, they are guided at the front along the boundary element, which preferably has a flat front surface. As soon as the sliding door, guided along the displacement axis, reaches the boundary element at its front end, the at least one or the door elements are extended perpendicularly to the displacement axis into the closing position. This perpendicular movement into the closing position allows end profiles, front faces or parts of a door frame, which delimit the associated access cross-section, to be designed particularly advantageously. Profile elements may advantageously be aligned parallel or perpendicular to the displacement axis. Curved shapes can be avoided. Furthermore, conventional sealing elements, in particular symmetrically designed sealing elements, may be used, which are subjected to axial force as the door elements move into the closing position and seal an associated door gap particularly reliably. In preferred embodiments, at least one of the door element shafts, which rotatably support the second door lever end piece of the associated door lever, is held in the corresponding door element bearing device so as to be slidable with play or elastically slidable without play, so that differences in the travel paths of the door elements from the rest position to the closing position, which are caused by the design of the sliding door device or by manufacturing tolerances, can be compensated for. Preferably, the door element shaft is held in the associated door element bearing device by a rotatably mounted adapter with play and / or is elastically slidable. Preferably, the adapter in the door element bearing device is held by an adapter shaft so as to be rotatable within an angular range required to compensate for differences in travel. Preferably, the adapter comprises an elastic or elastically mounted pressure element which bears against a component of the door element bearing device, for example against a part of a bearing cup or directly against the associated door element. As the lateral movement of the door elements typically occurs symmetrically, the first door element, for example, can be guided further towards the closed position even if the second door element has already reached its end position. The door levers associated with the second door element can subsequently be moved further within the associated door element bearing devices until the first door element has also reached the closing position. This ensures that both door elements can be guided into the closing position in order to seal the door passage tightly. The sliding door is preferably equipped with several support devices, which may be identical or different, so that the door elements can be swung out particularly easily. For example, support devices are provided on the underside and / or the top of the sliding door. Support devices of different types can also be easily combined with one another, so that, for example, on the one hand, force is effectively transmitted to the door elements and, on the other hand, the effect of disruptive forces can be avoided. Preferably, the first or the second door element, or the first and the second door elements, are each connected to at least one first support device, which comprises at least one support element that faces the boundary element and, upon contact with the boundary element, transmits a force from the boundary element to the associated first or second door element, and which, during the resulting swing-out of the associated first or second door element, is guideable along the boundary element and serves to provide the front-side mechanical and / or magnetic bearing of the associated first or second door element. The at least one support element is preferably a roller designed to roll along a front surface of the boundary element, or a sliding element designed to slide along the front surface of the boundary element, or a magnetic element which is held at a distance by the magnetic front surface of the boundary element or by at least one oppositely polarised counter-magnet connected thereto whilst moving along the front surface of the boundary element. The first support device preferably comprises an adjustment device by means of which the at least one support element can be displaced parallel to the displacement axis. The adjustment device allows compensation of asymmetries that are inherent in the design of the sliding door device or that result from manufacturing tolerances of the sliding door device. This ensures that, when the sliding door is moved, the support devices of both door elements simultaneously come into mechanical or magnetic contact with the boundary element, and that the forces acting on the sliding door are distributed equally between the two door elements. Alternatively or in addition to the first support device, at least one second support device is provided, comprising a support lever which is rotatably mounted on the mounting body or on the first or second door element by means of a support bearing shaft, and which faces the boundary element with a first support lever end piece and faces the adjacent second or first door element or the mounting body with a second support lever end piece. When the sliding door is moved against the boundary element, the first support lever end piece therefore makes contact with the boundary element first, causing the support lever to rotate and guiding the second support lever end piece against the adjacent door element or against the mounting body, thereby causing the door element or door elements to be ejected. The mounting body may advantageously also hold several second support devices with support levers, of which one, for example, interacts with the first door element and the other with the second door element, in order to eject them laterally as they approach the boundary element. Alternatively, each of the door elements may comprise at least one support lever which interacts with the mounting body. When mounting a support lever on the mounting body or when a support lever acts upon the mounting body, it must be noted that the mounting body is slidable along the displacement axis relative to the door elements, and the length of the second support lever end piece must be selected accordingly. It is therefore preferred that the support lever be arranged on one of the door elements and interact with the other door element. As an alternative to the first and second support devices, or in addition to the first support device, at least one third support device is preferably provided, comprising a spreader lever mechanism connected to the first door element via a first spreader lever bearing and to the second door element via a second spreader lever bearing, and comprising a force transmission element connected to the spreader lever mechanism and facing the boundary element. It is provided that the spreader lever mechanism moves the spreader lever bearings apart as soon as a force is applied to the spreader lever mechanism from the boundary element via the force transmission element. The spreader lever mechanism divides a force acting parallel to the displacement axis into forces acting outwards perpendicular to it, by means of which the door elements are guided outwards towards the access cross-sections to be sealed off. The force transmission element is preferably designed in such a way that no disruptive effects or noise occur when it strikes the boundary element. Preferably, the force transmission element has a larger contact area and is preferably made of hard-elastic material, such as POM. When magnetic force transmission elements are used, mechanical impact against the boundary element can be completely avoided or significantly dampened. In this case too, the combination of mechanical and magnetic support elements is a viable and advantageous option. Preferably, several third support devices are provided, the force transmission elements of which are preferably connected to one another at the front. In preferred embodiments, it is provided that the first or the second door element are connectable to the mounting body by means of a holding device, or that the first and the second door elements are connectable to one another by means of a holding device. The holding device preferably comprises cooperating holding magnets or a latching mechanism, which comprises, for example, latching tongues or latching elements that can be inserted into one another. This allows the door elements and the mounting body to be moved into a single unit in the rest position whilst the vehicle is in motion. This prevents relative movement between the door elements and the associated noise. The holding force exerted by the holding devices is overcome when the provided support device is activated, allowing the door elements to be subsequently moved into the closing position. In further preferred embodiments, it is provided that the at least one door element, or one of the door elements, is provided on its front face with a cover aligned parallel to the front surface of the boundary element, by means of which the space between that door element and the mounting body, or the space between the two door elements, can be sealed off. If there is only one door element, the space between that door element and the mounting body is sealed off at the front. If, on the other hand, two door elements are provided, the space between these two door elements is sealed off. The cover may also be connected to the mounting body. Hence, as the door elements are moved from the closing position to the rest position, the space between the door elements is also sealed at the front; consequently, when the door elements are in the rest position, the sliding door is indistinguishable from a conventional sliding door and there are no unsightly gaps into which people could get their hands. When moving back from the closing position to the rest position, the door element or elements are guided back against the mounting body and the door levers are turned accordingly. To facilitate this process, it is preferably provided that each door lever is connected to at least one door lever spring, for example a tension spring or a torsion spring, which exerts a force to rotate the associated door lever back from the closing position to the rest position. In a further preferred embodiment, a door compartment is provided - which is bounded on one side by a door compartment wall, which is aligned parallel to the displacement axis and has a wall front side facing the boundary element, and which delimits the access cross-section or one of the access cross-sections between them, or - which is bounded on both sides by a door compartment wall, each of which is aligned parallel to the displacement axis and has a wall front side facing the boundary element, and each of which delimits one of the access cross-sections between them. In preferred embodiments, it is provided that the first door element, or the first and second door elements, have a first door front face facing the boundary element and a second door front face facing the associated door compartment wall, and that, in the closing position of the first door element or the first and second door elements, the first door front face partially overlaps a boundary profile connected to the boundary element, and the second door front face overlaps a portion of the facing wall front side. A rubber seal may advantageously be arranged between the overlapping portions. By means of the door element or the door elements, the associated access cross-sections of the door passage can thus be sealed off tightly. Preferably, at least one first support device comprising a support element is also arranged on the second door front face of the door element or door elements; this support element abuts the associated wall front side when the door element is in the closed position and forms a bearing arrangement. For manual operation of the sliding door, at least one of the door elements is preferably fitted with a door handle, which is connected to the mounting body by a pull element, such as a pull rod. By operating the door handle, the mounting body can be retracted, causing the door elements to return to their rest position and, where applicable, to be coupled together. If the door elements are heavy, they are preferably supported on the floor by bearing devices such as rollers or the like. The invention is explained in more detail below with reference to the drawings. These show: Fig. 1a an inventive sliding door device 100, in a preferred embodiment comprising a sliding door 1, which is slidable along a displacement axis x out of a door compartment 99, which is delimited by door compartment walls 92, into a door passage 90 up to a boundary element 91, and which comprises a mounting body 11 with door elements 12A, 12B, which, upon reaching the boundary element 91, are movable from a rest position in opposite directions into a closing position, in which they close off access cross-sections 901, 902 of the door passage 90; Fig. 1b the sliding door device 100 of Fig. 1a, after the sliding door 1 has reached the boundary element 91, but the door elements 12A and 12B have not yet been fully moved into the access cross-sections 901 and of the door passage 90; 902 Fig. 1c the sliding door device 100 of Fig. 1a, after the sliding door 1 has reached the boundary element 91 and the door elements 12A, 12B have been moved into the access cross-sections 901, 902 of the door passage 90; Fig. 2a a part of the sliding cross-section; door device 100 of Fig. 1a, in Fig. 2b a part of the sliding cross-section; door device 100 of Fig. 1b, in Fig. 2c a part of the sliding cross-section; door device 100 of Fig. 1c, in Fig. 3a a part of the sliding another view; door device 100 of Fig. 2b, in Fig. 3b a part of the sliding another view; door device 100 of Fig. 2c, in Fig. 4a the from part of below; the sliding door device 100 of Fig. 2b Fig. 4b the from part of below; the sliding door device 100 of Fig. 2c Fig. 5 the sliding door 1, removed from the sliding door device 100, comprising a plate-shaped mounting body 11, shown in cross-section, which is connected by the lower and upper door lever mechanisms 4B, 4T to the plate-shaped door elements 12A, 12B, which are also shown in cross-section; Fig. 6 the upper part of the sliding door 1 of Fig. 5, comprising an upper door lever mechanism 4T, by means of which the door elements 12A, 12B were guided outwards, and two first support devices 6T, which are arranged on the door front faces 121 of the two door elements 12A, 12B, and a second support device 5, which is arranged on the door front face 121 of the second door element 12; Fig. 7 the part of sliding door 1 of Fig. 6 from the rear, comprising the door lever mechanism 4T, which comprises a central bearing device 41 with a mounting part 410, which is pivotally connected on each side by a door lever 43 to a door element bearing device 42, which are mounted in the first and second door elements 12A, 12B, and which, in this configuration, each comprise a bearing cup 420; Fig. 8 the door lever mechanism 4T, detached from sliding door 1 of Fig. 7, with a bearing cup 420 (shown separated) which has been detached from one of the door element bearing devices 42, which in this preferred embodiment comprises an adapter 421, which is connected to the associated door lever 43 by means of a door element shaft 4321 and is rotatably mounted within the bearing cup 421 by means of an adapter shaft 4211 in order to compensate for any asymmetry arising from the design or manufacturing tolerances; Fig. 9a one of the door element bearing devices 42 of Fig. 8, with a bearing cup 420 partially cut away; Fig. 9b the door element bearing device 42 of Fig. 9a from the rear; Fig. 9c the adapter 421 taken from the door element bearing device 42 of Fig. 9b; Fig. 10a the door lever mechanism 4T, removed from the sliding door device 100 of Fig. 2a, with the door levers 43 turned inwards; Fig. 10b the door lever mechanism 4T, removed from the sliding door device 100 of Fig. 2b, with door levers 43 partially turned outwards; Fig. 10c the door lever mechanism 4T, removed from the sliding door device 100 of Fig. 2c, with the door levers 43 turned fully outwards; Fig. 11a a part of the front door element 12A comprising a door handle 16 located in a handle cup 169, which is connected to the mounting body 11 by a pull rod 161 passing through a transfer opening 1690 in the handle cup 169; Fig. 11b the first door element 12A and the mounting body 11 of Fig. 11a, from the rear, with the pull rod 161, which is connected to a handle bearing assembly 168 mounted on the mounting body 11; Fig. 12a the sliding door device 100, in a preferred embodiment, comprising a third support device 2; and Fig. 12b the third support device 2, which was taken from the sliding door device of Fig. 12a. Fig. 1 shows an inventive sliding door device 100 in a preferred embodiment comprising a sliding door 1 which is slidable along a displacement axis x out of a door compartment 99 in a closing direction, which is opposite to an opening direction, into a door passage 90 up to a boundary element 91. The door compartment 99 is enclosed on both sides by door compartment walls 92, which have end faces 921 that, together with the boundary element 91, define the door passage 90. The door passage 90 is therefore a passageway with a length corresponding to the distance between the outward-facing front surfaces 922 of the door compartment walls 92. The channel cross-sections at the inlet and outlet of this passageway are hereinafter referred to as access crosssections 901, 902. The access cross-sections 901, 902 thus lie in the same plane as the outward-facing front surfaces 922 of the door compartment walls 92. By way of example, a bottom member 94 and a top member 93 are also shown, which may form part of a building or the sliding door device. Sliding door 1 is held in a sliding position at the top by an upper door bearing device 8 and at the bottom by a lower door bearing device 7. For example, the top member 93 supports a support rail 81 of the upper door bearing device 8, along which displacement devices, such as the carriages 82 of Fig. 5, can slide. The bottom member 94 preferably supports guide elements 72 of the lower door bearing device 7, one of which is shown in Fig. 5 by way of example. The bottom member 94, the top member 93, the boundary element 91 and, where applicable, a rear wall 95 of the door compartment 99 form a frame structure 9, by means of which the sliding door device 100 has been constructed by way of example. The sliding door 1 comprises a mounting body 11, which is connected to the aforementioned displacement devices 82 (see Fig. 5) and which holds, on each side, one door element 12A, 12B, by means of door lever mechanisms 4B, 4T (see Fig. 5) in such a way that, upon reaching the boundary element 91, they are movable from a rest position, for example, abutting the mounting body 11, in opposite directions into a closing position, in which they close off the access cross-sections 901, 902 of the door passage 90. In the rest position, the sliding door 1 has a minimum diameter perpendicular to the displacement axis x and can be retracted into the relatively narrow door compartment. Fig. 1a further shows that the gap at the front between the two door elements 12A and 12B is closed off by a cover 19. Furthermore, a door handle 16 is shown, which is described in more detail in a preferred embodiment with reference to Figures 11a and 11b. Fig. 1b shows the sliding door device 100 of Fig. 1a after the sliding door 1 has reached the boundary element 91, but the door elements 12A and 12B have not yet been moved fully into the closing position. Fig. 1c shows the sliding door device 100 of Fig. 1a after the sliding door 1 has reached the boundary element 91 and the door elements 12A, 12B have been driven in a closing direction y into the access cross-sections 901, 902 of the door passage 90, thereby reaching the closing position. In the closing position, the outer surfaces of the door elements 12A, 12B lie in the same plane as the front surface 922 of the associated door compartment wall 92. The movement in the closing direction y follows an arc with a radius corresponding to the length of the door levers 43 (see Fig. 8). However, as the travel distance in the closing direction is very short, the closing direction Y is approximately perpendicular to the displacement axis x. During the movement from the rest position to the closing position, the door elements 12A, 12B remain aligned in parallel to each other and to the mounting body 11 at all times. Fig. 2a shows a part of the sliding door device 100 of Fig. 1a in cross-section. Of the door compartment walls 92, only the end faces 921 are shown; which comprise a profile featuring a stepped section with a thin flange plate. The boundary element 91 also features end profiles 911 with a thin flange plate on both sides. Between the end faces 921 of the wall sections and the end profiles 911, (imaginary) material elements have been inserted which coincide with the access cross-sections 901, 902, which are covered by the door elements 12A, 12B in the closed position. The door passage 90 extends from the first to the second access cross-section 901, 902. Sliding door 1 has been partially pulled out of the door compartment 99. In this preferred embodiment, the mounting body 11 is a plate, possibly a wooden plate, the thickness or diameter of which, perpendicular to the displacement axis x, is less than the thickness of the plates, possibly wooden plates, of the door elements 12A, 12B. The left-hand part of the mounting body 11 and the door elements 12A, 12B has been cut away. Only the front part of the mounting body 11 is shown; which is connected to a displacement device 82 by means of a connecting piece 822, which may be a threaded rod. The carriage 82 has a conventional design and comprises a carriage body 820, which holds two roller wheels 821 and the connecting piece 822. Fig. 5 shows that the carriage 82 is guided in a support rail 81, which has two side walls connected at the top by a center piece and which, at the bottom, have foot pieces facing one another, on which the roller wheels 821 are supported. Fig. 2a further shows that the mounting body 11 is set back relative to the door elements 12A, 12B and that, in the rest position, the door elements 12A, 12B are held close to the mounting body 11 and, where applicable, are separated from the mounting body 11 by only a thin air gap. The door end faces 121 oriented towards the boundary element 91, which preferably comprise a graduated step, hold first support devices 6, 6T, which each comprise at least one support element 62 in the form of a rotatably mounted roller. Two upper first support devices 6T are shown. Preferably, further first support devices 6, 6B are provided, which are mounted, for example, on the undersides of the door end panels 121, as shown in Fig. 5. It is also shown that the space between the door front faces 121 is closed off by the cover 19 and that the door elements 12A, 12B and the cover 19 visually form a unity. The cover 19 also prevents manual access between the door elements 12A, 12B. In this preferred embodiment, the second door element 12B of the sliding door 1 also holds a second support device 5, 5T, 5B, which comprises a support lever 52 that leads the sliding door 1 in the closing direction via a support lever end piece 521 (see Fig. 6) and will be the first to reach a front surface 910 of the boundary element 91. The other support lever end piece 522 (see Fig. 6) abuts the inner side of the first door element 12A, which is why the first door element 12A is pushed away from the second door element 12B when the support lever 52 is rotated. Fig. 2b shows a part of the sliding door device 100 of Fig. 1b in cross-section. By means of the cross-section, a central section of the sliding door 1 has been removed. In this illustration, the sliding door 1 has been fully extended out of the door compartment 99, and the support lever 52 has already reached the front surface 910 of the boundary element 91 and, following a rotation, has pushed the first door element 12A aside. If the first and second door elements 12A, 12B are connected to one another in the rest position by a holding device, for example by corresponding holding magnets 151, 152 (see Fig. 6), this connection was released when the support lever 52 rotated. The first support devices 6T also rest against the front surface 910 of the boundary element 91 via the support rollers 62, which is why the door elements 12A, 12B cannot be moved any further, but can only move sideways if the mounting body 11 is moved further. During this process, the support elements 62 serve to support the door elements 12A and 12B, so that they can be guided outwards along the boundary element 91 into the closing position with virtually no resistance. Fig. 2b further shows, that on the rear side of the door elements 12A, 12B, first support devices 6, 6T are provided, which are aligned with support elements 62 in the opening direction towards the end faces 921 of the door compartment walls 92 and which can be guided practically friction-free along the profiled surfaces of the end faces 921. The door elements 12A, 12B can therefore be guided friction-free in both directions into the closing position and back again. Through the support elements 62, which are designed as rollers, mechanical contact is established. If, however, mutually repelling magnetic elements are arranged on the door elements 12A, 12B, the boundary element 91 and the wall end faces 921, this displacement can take place without mechanical contact. Fig. 2c shows a part of the sliding door device 100 of Fig. 1c in cross-section. This view shows that the door elements 12A, 12B are held by the door levers 43 via two upper door lever mechanisms 4T and two lower door lever mechanisms 4B. The door levers 43 are rotatably mounted, on the one hand, in a central bearing device 41 (see Fig. 8) connected to the mounting body 11 and, on the other hand, in door element bearing devices 42, which are connected to the door elements 12A, 12B. During the closing process, in which the door elements 12A and 12B were held against the boundary element 91 whilst the mounting body 11 continued to move along the displacement axis x, the door levers 43 were rotated fully outwards on both sides. This guided the door elements 12A, 12B into the closing position, in which they seal off the access cross-sections 901, 902. The front door front faces 121 cover the end profiles 911 and the rear door front faces 122 cover the wall faces 921. Sealing elements may advantageously be provided in between. If the second support device 5 is not present, the support elements 62 first come into contact with the front surface 910 of the boundary element 91 and transmit higher forces at the start of the ejection of the door elements 12A and 12B. The movement of the door elements 12A, 12B into the rest position, on the other hand, takes place as already described. The second support device 5 is therefore used only optionally to facilitate the opening process and reduce the recoil forces. Figures 2a-2c further show that, in this configuration of the sliding door device 100, the levers 43 are aligned forwards towards the boundary element 91 and are rotated outwards and back as the sliding door 1 moves into the closing position. Fig. 3a shows the part of the sliding door device 100 of Fig. 2b in a further illustration. Fig. 3b shows the part of the sliding door device 100 of Fig. 2c in a further view, with the carriages 82 connected via the connecting piece 822 to a mounting sledge 823, which is held in a mounting rail 824 that is mounted on the upper side of the mounting body 11 by means of rail flanges 8240. Fig. 4a shows the part of the sliding door device 100 of Fig. 2b from below. Fig. 4b shows the part of the sliding door device 100 of Fig. 2c from below. It can be seen that the two lower door lever mechanisms 4B are mounted on the mounting body 11 in the same way as the upper door lever mechanisms 4T. It is also shown that the mounting body 11 is connected at the underside, by means of mounting screws 711, to a guide rail 71, into which a guide element 72 mounted on the floor 94 can engage; which is also shown in Fig. 5. The mounting body 11 is therefore guided in a single plane by means of the support rail 81 and the guide elements 72. Fig. 5 shows the sliding door 1, removed from the sliding door device 100, with the plate-shaped mounting body 11, which is shown in sectional view and which is connected via the lower and upper door lever mechanisms 4B, 4T to the plate-shaped door elements 12A, 12B, which are also shown in sectional view. A central section of the sliding door 1 has been cut away by means of horizontal cuts. Furthermore, the front part of the first door element 12A has been cut away to expose the front-sided door lever mechanisms 4T, 4B, which are mounted in recesses 110 of the plate-shaped mounting body 11. The door elements 12A and 12B are each connected at the front, on the top and bottom, to a first support device 6T and 6B respectively. Between them, a second support device 5T and 5B, each with a support lever 52, is held by the second door element 12B at the top and bottom respectively. Four support rollers 62 and two support levers 52 are thus provided on the front side, by means of which the door elements 12A, 12B can advantageously be moved apart when the mounting body 11 is guided along the displacement axis x in the closing direction towards the boundary element 91. Between the second support devices 5B, 5T, the cover 19 is held, for example, by the door front face 121 of the second door element 12B. At the upper end, the sliding door 1 is supported by an upper door bearing device 8, which comprises a support rail 81 and two displacement devices 82 connected to the mounting body 11. At the lower end, the sliding door 1 is supported by a lower door bearing device 7, which comprises the downward-opening guide rail 71 and guide element 72, one of which is shown as an example. The mounting body 11 is driven manually or, preferably, by means of at least one drive device 3, which is shown schematically in Fig. 5. The drive device 3 may be an electric motor connected via a drive element 31, for example a toothed belt, to the sliding door 1 or the displacement devices 82. The drive motor may be integrated into the displacement devices 82, whereby, for example, a gear connected to a motor shaft engages in a toothed belt or a toothed track running parallel to the support rail 81. The drive device 3 may also be a linear motor, which preferably comprises the displacement devices 82 or parts thereof. The drive device 3 may furthermore be a so-called pull-in device, comprising a tension spring or a magnetic device by means of which the sliding door 1 is pulled into the closing position. When the sliding door 1 is opened, the tension spring is reloaded and the sliding door 1 is disengaged from the retraction device. A pull-in device with a tension spring is known, for example, from EP2217782 or DE202021004263U1. A pull-in device with a magnetic mechanism is known, for example, from CH717364. Fig. 6 shows the upper part of the sliding door 1 of Fig. 5, with the upper door lever mechanism 4T, by means of which the door elements 12A, 12B were guided outwards, and with two first support devices 6T, which are arranged at the top of the door front faces 121 of the two door elements 12A, 12B, and a second support device 5T, which is arranged at the top of the door front face 121 of the second door element 12. The first support devices 6, 6T comprise a device housing 60, within which a bearing block 61, which holds the support element 62, for example by means of a bearing shaft, is movably held and, preferably, is movable as required by means of an adjustment screw 65. By turning the adjustment screw 65, the support elements 62 of all first support devices 6, 6B, 6T can be aligned in a single plane. The second support device 5, 5T comprises a bearing housing 50, into which a support bearing shaft 51 is inserted, by means of which the support lever 52 is rotatably mounted. At the front, the first support lever end piece 521, which faces the boundary element 91, protrudes from the bearing housing 50. On the side, the second support lever end piece 522, which faces the first door element 12A, protrudes from the bearing housing 50. The central bearing device 41 of the door lever mechanism 4T is connected to an adjacent part of the mounting body 11 by means of the fork-shaped mounting part 410. The mounting rail 824 of the displacement device 82 is connected to the top of the mounting body 11 by means of rail flanges 8240. The mounting rail 824 holds the mounting sledge 823, which is connected to the drive body 820 of the displacement device or the displacement device 82 via the connecting piece 822. In order to allow door elements 12A and 12B to be moved close to the mounting body 11, recesses 120T are provided in the door elements 12A and 12B, into which those parts of the displacement device 82 that extend beyond the mounting body 11 on both sides can be inserted. Fig. 7 shows the part of the sliding door 1 of Fig. 6 from the rear. The door lever mechanism 4T holds a door lever 43 on each side, which is rotatably mounted at a first door lever end piece 431 to the central bearing device 41 and at a second door lever end piece 432 to an opposing door element bearing device 42. The door element bearing devices 42 each comprise a bearing cup 420, which is recessed into the corresponding door element 12A, 12B and is preferably secured by screws, snapped into place or held magnetically. Door element bearing devices that are not recessed into the corresponding door element can also be used. In a simple configuration, the second door lever end piece 432 is held so that it can rotate but not slide within the associated door element bearing device 42. In this case, a door lever 43 of one of the door elements 12A or 12B, which has already reached the closed position, may hinder the further movement of the mounting body 11 along the displacement axis x and, consequently, also the closing operation of the other door element 12B or 12A. In preferred embodiments, it is therefore provided that the second door lever end pieces 432 are elastically mounted in the door element bearing devices 42 and can continue to move even if the relevant door element 12A or 12B has already reached its closing position. In the embodiment of Fig. 7, the door element bearing devices 42 comprise an adapter 421 which is connected to the associated second door lever end piece 432; which is rotatably mounted within a specific range by means of an adapter shaft 4211 inserted into the bearing cup 420, and which comprises a resilient pressure element 4215 that bears against the bearing cup 420 and keeps the second door lever end piece 432 free of play. Fig. 8 shows the door lever mechanism 4T, which has been detached from the sliding door 1 of Fig. 7, with a bearing cup 420 (shown separately) that has been detached from the left door element bearing device 42 to expose the adapter 421. The adapter 421 comprises an adapter body 4210 with a first adapter channel 42101, into which the adapter shaft 4211 is inserted, which is held in the first cup openings 4201 of the bearing cup 420. The adapter 421 can be rotated through an angle determined by the width of a second adapter channel 42102, into which a holding shaft 4219 is inserted, which is held in the second cup openings 4202 of the bearing cup 420. The adapter 421 can therefore be rotated until the holding shaft 4219 abuts one side or the other of the second adapter channel 42102. To ensure that the adapter 421 can move smoothly within the bearing cup 420, the adapter body 4210 holds one bearing roller 4212 at the top and one at the bottom, which can roll along the inner surfaces of the bearing cup 420. To ensure the adapter 421 is held without play and to prevent impact noises, the adapter body 4210 incorporates the pressure element 4215, which is held in an elastic, resilient or spring-like manner and can abut against a rear wall 4203 of the bearing cup 420. The adapter body 4210 further comprises a third adapter channel 42103, into which the door element shaft 4321 is inserted. A central shaft 4311 is inserted into the central bearing device 41, by means of which the first door lever end pieces 431 are rotatably mounted. Preferably, door lever springs 491, 492 are fitted into the door lever mechanism 4T in order to exert torques on the door levers 43 such that they are automatically rotated against the mounting body (mounting wall) 11 when the mounting body (mounting wall) 11 is retracted, thereby releasing the door levers 43. Two torsion springs 491, 492 are shown. However, other elastic elements or springs may also be used. Fig. 9a shows one of the door element bearing devices 42 of Fig. 8 with a bearing cup 420 partially cut away. Fig. 9b shows the door element bearing device 42 of Fig. 9a from the rear. Fig. 9c shows the adapter 421 removed from the door element bearing device 42 of Fig. 9b. Also shown is a pressure spring, by means of which the pressure element 4215 is pushed outwards. The pressure element 4215, however, may also be designed to be elastic in itself. Fig. 10a shows the door lever mechanism 4T, removed from the sliding door device 100 of Fig. 2a, with the door levers 43 turned inwards. The bearing housings 420 are cut along the line shown in Fig. 9a. Fig. 10b shows the door lever mechanism 4T, removed from the sliding door device 100 of Fig. 2b, with the door levers 43 partially turned outwards. Fig. 10c shows the door lever mechanism 4T, removed from the sliding door device 100 of Fig. 2c, with the door levers 43 fully turned outwards. The upper door element bearing device 42 is cut along the line shown in Fig. 9a. The section extends through the adapter 421 and shows the pressure element 4215, which abuts against the rear wall 4203 of the bearing cup 420. Fig. 11a shows part of the first door element 12A with a door handle 16 arranged in a handle cup 169, which is connected to the mounting body 11 by a pull rod 161 that passes through a transfer opening 1690 in the handle cup 169. Pulling the door handle 16 allows the mounting body 11 to be retracted, thereby returning the door elements 12A, 12B from the closing position to the rest position, where they abut the mounting body 11, and enabling the sliding door 1 to be moved back into the door compartment 90. Fig. 11b shows the first door element 12A and the mounting body 11 of Fig. 11a from the rear, with the pull rod 161 connected via a handle bearing shaft 1681 to a handle bearing assembly 168 mounted on the mounting body 11. Preferably, a return spring 1682, for example a torsion spring, is provided, by means of which the door handle 16 is held in the handle cup 169. Fig. 12a shows the sliding door device 100 in a preferred embodiment with a third support device 2, which comprises a spreader lever mechanism 24. The spreader lever mechanism 24 is connected to the first door element 12A via a first spreader lever bearing 291 and to the second door element 12B via a second spreader lever bearing 292 (see Fig. 12b). Furthermore, a force transmission element 22 is provided, which is connected to the spreader lever mechanism 24 and faces the boundary element 91. When a force is applied from the boundary element 91 via the force transmission element 22 to the spreader lever mechanism 24, the spreader lever bearing 291, 292 and thus the door elements 12A, 12B are moved apart. The third support device 2 normally replaces the second support device 5 and can in principle also replace the first support device 6, as the door elements 12A, 12B can be moved into the closed position without coming into contact with the boundary element 91. A second support device 5 is not required. First support devices 6, one of which is shown schematically, are provided as an option in the event that the door elements 12A, 12B are guided fully against the boundary element 91. Preferably, a further third support device 2 is provided, for example, on the underside of the sliding door 1. The forcetransmitting elements 22 of the third support devices 2 may be connected to one another by a connecting piece 220, which may also serve as a cover 19. As the door elements 12A and 12B are moved apart in this preferred configuration of the sliding door 1 by means of the spreader lever mechanism 24, the door levers 43 may be oriented forwards or backwards. Fig. 12b shows the third support device 2, which has been removed from the sliding door device shown in Fig. 12a. The spreader lever mechanism 24 comprises two pairs, each consisting of two spreader levers 241, 242, which are connected to one another by spreader lever shafts 245, 246. The spreader levers 241, 242 in each pair are connected to one another by spreader lever shafts 247, which are held in the spreader lever bearings 291, 292. The spreader lever bearings 291, 292 comprise a pot-shaped body which, like the bearing heads 420, can be inserted into the door elements 12A, 12B. Instead of the spreader lever mechanism 24 shown, other spreading devices may also be used which allow the door elements 12A, 12B to be pushed apart when a force is applied. In the embodiments described, a door lever mechanism 4T, 4B comprises two door levers 43 each, both of which are advantageously held by a single central shaft 4311. However, it is also possible to use lever mechanisms 4T and 4B, each of which supports only one door lever 43, or which comprise several central shafts 4311, by means of which one door lever 43 is rotatably supported in each case. List of references: 1 sliding door 100 sliding door device 11 mounting body 110 mounting opening 12A first door element 12B second door element 120B lower door recess 120T upper door recess 121 first door front face 122 second door front face 1210 profile recess 150 holding device 151 first holding magnet 152 second holding magnet 16 door handle 161 pull element, preferably pull rod 168 handle bearing bracket 1681 handle bearing shaft 1682 return spring 169 handle cup 1690 transfer opening 19 cover 2 third support device 22 force transmission element 24 spreader lever mechanism 241, 242 lever pair with spreader levers 245,246,247 spreader lever shafts 291 first spreader lever bearing 292 second spreader lever bearing 3 drive device, preferably with a controller 31 drive element 4B lower door lever mechanism 4T upper door lever mechanism 41 central bearing device 5 410 mounting part 42 door element bearing device 420 device part, bearing cup 4201 first cup opening for the adapter shaft 4211 4202 second profile opening for the door element shaft 4321 10 4203 rear wall 421 adapter 4210 adapter body 42101 first adapter channel for the adapter shaft 4211 42102 second adapter channel for the holding shaft 4219 15 42103 third adapter channel for the door element shaft 4321 4211 adapter shaft 4212 bearing rollers 42121 bearing shaft for the bearing roller 4212 4215 pressure element 20 42151 pressure spring 4219 holding shaft 43 door levers 431 first door lever end piece 4311 central shaft 25 432 second door lever end piece 4321 door element shaft 491, 492 door lever springs 5, 5B, 5T second support device 50 bearing housing 30 51 support bearing shaft 52 support lever 521 first support lever end piece 522 second support lever end piece 6, 6B, 6T first support device 60 device housing 61 bearing block with adjustment device 62 support element, support roller 5 65 adjustment screw 7 lower door bearing device 71 guide rail (stationary or mobile) 72 guide element (mobile or stationary) 711 mounting screws 10 8 upper door bearing device 81 support rail (stationary or mobile) 82 displacement device (mobile or stationary) 820 device body 821 roller wheels 15 822 connecting piece, connecting rod 823 mounting sledge 824 mounting rail 8240 rail flanges 9 frame structure 20 90 door passage 901 access cross-section, entrance cross-section of the door passage 902 access cross-section, exit cross-section of the door passage 25 91 boundary element 910 front surface 911 boundary profile 92 door compartment walls 921 wall front side of the door compartment wall 92 30 922 outward-facing front surface of the door compartment wall 92 93 top member 94 bottom member 95 rear wall of the door compartment 99 door compartment x displacement axis y closing direction
Claims
1. Sliding door device (100) for closing off a door passage (90) having at least one access cross-section (901; 902),comprising a sliding door (1),- which by means of at least one door bearing device (8) issupported displaceable along a displacement axis (x),- which is displaceable along the displacement axis (x) ina closing direction, opposite to an opening direction, up to a boundary element (91) which delimits the door passage (90) and the at least one access cross-section (901; 902)on one side, and- which comprises a mounting body (11), which is connected to the door bearing device (8) and which pivotally supports a first door element (12A) on a first side or a first door element (12A) on a first side and a second door element (12B) on a second side, each of which door elements (12A; 12A, 12B) being movable outwards from arest position near the mounting body (11) into a closing position in order to close off the corresponding access cross-section (901; 902),characterised in,that the mounting body (11) is equipped with at least two door lever mechanisms (4T; 4B), each of which comprising acentral bearing device (41), and, for each of the door elements (12A, 12B), a door lever (43) and a door elementbearing device (42),that a first door lever end piece (431) of the door levers (43) is held rotatably by a central shaft (4311) in the associated central bearing device (41), and that a seconddoor lever end piece (432) of the door levers (43) is held rotatably by a door element shaft (4321) in the associated door element bearing device (42), which is connected to the associated first or second door element (12A; 12B),that the door levers (43) of the at least two door lever mechanisms (4T; 4B), together with the associated first orfirst and second door element (12A; 12B), are rotatable inone direction of rotation towards the mounting body (11) into the rest position, and from the rest position in the opposite direction of rotation into the closing position, andthat the sliding door (1) is connected, on a first door front face (121) facing the boundary element (91), to at least one support device (2; 5; 6), which serves to interact with theboundary element (91) and to transmit a reaction force from the boundary element (91) to the first door element (12A) or to the first and second door elements (12A; 12B).
2. Sliding door device (1) according to claim 1, characterised in that the first door element (12A) or the first and second door elements (12A, 12B) are extendable from the restposition, perpendicular to the displacement axis (x), into the closing position.
3. Sliding door device (1) according to claim 1 or 2, characterised in that the door element shaft (432) is held elastically displaceable in the associated door element bearing device (42), or that the door element shaft (4321) is held elastically displaceable in the associated door element bearing device (42) by an adapter (421), which is held rotatably within the door element bearing device (42) by an adapter shaft (4211) and which comprises an elastic or elastically mounted pressure element (4215) that abutsagainst a device part (420) of the door element bearing device (42) or against the associated door element (12A, 12B).
4. Sliding door device (1) according to claim 1, 2 or 3,characterised in that each door lever (43) is connected to at least one door lever spring (491, 492), which exerts a forcein order to return the associated door lever (43) from the closing position to the rest position.
5. Sliding door device (1) according to one of claims 1-4, characterised in that the first or the second door element (12A, 12B), or the first and the second door elements (12A,12B), are each connected to at least one first support device(6; 6B, 6T), which comprises at least one support element(62), which is oriented towards the boundary element (91) andwhich, upon reaching the boundary element (91), transmits a force from the boundary element (91) to the associated first or second door element (12A, 12B) and which, during aresulting swing-out of the associated first or second door element (12A, 12B), is guidable along the boundary element(91) and serves to support the front end of the associated first or second door element (12A, 12B).
6. Sliding door device (1) according to claim 5, characterised in that the at least one support element (62) is a rollerdesigned to roll along a front surface (910) of the boundary element (91), or is a sliding element designed to slide along the front surface (910) of the boundary element (91), or a magnetic element which is held at a distance from the frontsurface (910) of the boundary element (91), which comprises or holds at least one oppositely polarised counter-magnet,whilst moving along the front surface (910) of the boundary element (91).
7. Sliding door device (1) according to claim 5 or 6, characterised in that the at least one first support device (6; 6B, 6T) comprises an adjustment device (61) by means ofwhich the at least one support element (62) is displaceable parallel to the displacement axis (x).
8. Sliding door device (1) according to one of claims 1-7, characterised in that at least one second support device (5; 5B, 5T) is provided, comprising a support lever (52) which isrotatably supported by the mounting body (11) or by the first or second door element (12A; 12B) by means of a supportbearing shaft (51), and which faces the boundary element (91) with a first support lever end piece (521) and faces the adjacent second or first door element (12B; 12A) or themounting body (11) with a second support lever end piece (522).
9. Sliding door device (1) according to one of claims 1-8, characterised in that at least one third support device (2) is provided, which comprises a spreader lever mechanism (24) connected to the first door element (12A) via a first spreader lever bearing (291) and to the second door element (12B) via a second spreader lever bearing (292), and a force transmission element (22) which is connected to the spreader lever mechanism (24) and faces the boundary element (91), wherein the spreader lever mechanism (24) moves the spreader lever bearings (291, 292) apart as soon as a force is appliedto the spreader lever mechanism (24) from the boundary element (91) via the force transmission element (22).
10. Sliding door device (1) according to one of claims 1-9, characterised in that the first or the second door element (12A, 12B) is connectable to the mounting body (11) by meansof a holding device (150), or that the first and the seconddoor elements (12A, 12B) are connectable to one another or tothe mounting body (11) by means of a holding device (150), wherein the holding device (150) preferably comprises cooperating holding magnets (151, 152) or a latchingmechanism.
11. Sliding door device (1) according to one of claims 1-10, characterised in that the at least one door element (12A; 12B) or one of the door elements (12A, 12B) is provided onthe door front face (121) with a cover (19) aligned parallel to the front surface (910) of the boundary element (91), by means of which the space between the at least one door element (12A; 12B) and the mounting body (11), or the space betweenthe two door elements (12A, 12B), is sealable.
12. Sliding door device (1) according to one of claims 1-11, characterised in that at least one electrical or mechanical drive device (3) is provided,a) which is integrated into one of the displacement devices(82); orb) which is implemented as a linear motor and directly drivesthe displacement devices (82) or the mounting body (11); orc) which is implemented as an electric motor that drives the displacement devices (82) or the mounting body (11) by means of a drive element; ord) which, when implemented as a mechanical pull-in device, is connected or connectable to the sliding door (1) or the mounting body (11); ore) which in the form of a magnetic pull-in device is connected or connectable to the sliding door (1) or the mounting body (11).
13. Sliding door device (1) according to one of claims 1-12, characterised in that a door compartment (99) is provided,a) which is bordered on one side by a door compartment wall (92) that is aligned parallel to the displacement axis (x) and faces the boundary element (91) with a wall front side (921), and which borders one of the access crosssections (901; 902) between them, orb) which is bordered on both sides by a door compartment wall (92) , each of which is aligned parallel to thedisplacement axis (x) and has a wall front side (921) facing the boundary element (91), and each of which borders one of the access cross-sections (901; 902)between them.
14. Sliding door device (1) according to claim 13, characterised in that the first door element (12A) or the first and second door elements (12A; 12B) have a first door front face (121)facing the boundary element (91) and a second door front face(122) facing the associated door compartment wall (92), and in that, in the closing position of the first door element (12A) or the first and second door elements (12A; 12B), thefirst door front face (121) partially overlaps a boundary profile (911) connected to the boundary element (91), and that the second door front face (122) overlaps a portion of the facing wall front side (921).
15. Sliding door device (1) according to claim 13 or 14, characterised in that at least one first support device (6, 6T, 6B) with a support element (62) is arranged on the seconddoor front face (122), which, in the closing position of the associated door element (12A, 12B), abuts against thecorresponding wall front side (921).
16. Sliding door device (1) according to one of claims 1-15, characterised in that at least one of the door elements (12A, 12B) comprises a door handle (16) which is connected to the mounting body (11) by means of a pull element (161).
17. Sliding door (1) for a sliding door device (1) according to one of claims 1-16.