Sliding door device and sliding door

Abstract

Sliding door device (100) for closing off a doorway (90) having at least one access cross-section (901; 902), comprising a sliding door (1) which is mounted displaceably along a running axis (x) by means of at least one door bearing device (8), which is displaceable along the running axis (x) in a closing direction opposite to an opening direction up to a closing element (91) which delimits the doorway (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 articulates 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 can be guided outwards from a rest position near the mounting body (11) into a closed position in order to facing access cross-section (901;902). According to the invention, the mounting body (11) is equipped with at least two door lever assemblies (4T; 4B), each having a central bearing device (41) and, for each of the door elements (12A, 12B), a door lever (43) and a door element bearing device (42), that a first door lever end piece (431) of the door lever (43) is rotatably held in the associated central bearing device (41) by a central shaft (4311), and that a second door lever end piece (432) of the door lever (43) is rotatably held in the associated door element bearing device (42), which is connected to the associated first or second door element (12A; 12B), by a door element shaft (432), that the door levers (43) of the at least two door lever assemblies (4T; 4B) are connected to the associated first or first and second door elements (12A;12B) can be rotated in one direction of rotation against the mounting body (11) into the rest position and from the rest position in an opposite direction of rotation into the closed position, and in that the sliding door (1) is connected on a first door end face (121) facing the closing element (91) to at least one support device (2; 5; 6) which serves to cooperate with the closing element (91) and to transmit a recoil force from the closing element (91) to the first door element (12A) or to the first and second door elements (12A; 12B);

Description

[0001] The invention relates to a sliding door device with a sliding door which is displaceable along a running axis of a running rail and which has at least one door element which is movable against an access cross-section of a door passage which is spaced from the running axis in order to close it.

[0002] US9290977B2 discloses a sliding door device with a sliding door which is displaceable along a running rail which has a first running surface section running parallel to the running axis, along which the sliding door is displaceable towards a door opening, and a second running surface section running inclined to the running axis, along which the sliding door is displaceable towards the door opening.

[0003] For this sliding door system, appropriately designed guide rails must be provided depending on the conditions at the installation site. Furthermore, the drive units must be adapted to the guide rails.

[0004] JP2023035199A discloses a sliding door device with a sliding door comprising two door elements, each of which can be guided with its leading edge along a control curve toward a distant side of an associated door opening and then rotated with its trailing edge toward the facing side of the door opening. During this process, the door elements first rotate in one direction and then rotate in the other direction. A disadvantage of this solution is the need for control curves, which in turn must be adapted to the conditions at the installation site. Furthermore, the described movement sequence of the door elements is undesirable.When moving the door elements along curves into a closed position, the elements of the door frame and, if applicable, sealing elements must be designed with appropriate effort in such a way that the door elements can be moved into the closed position at the curve and a reliable seal results.

[0005] JP7373407B2 discloses a sliding door device with a sliding door held by carriages guided in a rail and having two door elements that can be displaced outward by means of cross levers. Of the end pieces of the cross levers connected to one of the door elements, one is stationary but rotatable, and the other is displaceable and rotatable by means of rollers in a rail connected to the respective door element. The cross levers are connected by a relatively long drive shaft to a drive lever mechanism comprising four drive levers that are rotatable relative to one another and can form a rhombus of any shape through mutual rotation. The drive levers of a first pair of levers are connected to one another by the drive shaft. The drive levers of a second pair of levers are connected to one another by an adjusting shaft.One of these drive levers is rigidly coupled to the drive shaft, so that rotating this drive lever actuates the cross levers. The two pairs of levers are articulated together by connecting levers. Moving the actuating shaft relative to the drive shaft actuates the drive lever mechanism accordingly, rotating the drive shaft. The drive lever mechanism is connected to a mounting frame, which is held movable by support rails connected to the carriages. The actuating shaft is connected to one of the carriages by a connecting part. The drive lever mechanism, together with the mounting frame, can thus be moved along the support rails and thus relative to the carriages, while the actuating shaft remains fixed.By moving the mounting frame relative to the carriages, the drive lever mechanism can be activated, the cross levers rotated, and the door elements moved outward when the door opening is reached. For this purpose, a gripper is provided on the door frame of the sliding door device, which defines the door opening. The mounting frame of the sliding door engages this gripper when the door is moved in the closing direction. This stops the mounting frame while a portion of the sliding door continues to move with the carriages, activating the drive lever mechanisms during this process.

[0006] This sliding door device is therefore extremely complex and associated with high manufacturing costs. Operating the numerous device components, which can be moved and / or rotated relative to one another, requires considerable force. Furthermore, these components must be kept in good working order to prevent this force from increasing. Regular maintenance may be required. The gripper, which is mounted on the door frame, is obstructive and hinders the passage of people through the doorway. Given the complex construction of the sliding door, it not only requires considerable manufacturing effort but also considerable weight.

[0007] The present invention is therefore based on the object of creating an improved sliding door device with an improved sliding door.

[0008] In particular, an improved sliding door arrangement is to be provided with a sliding door which is displaceable along a running axis and which has at least one door element which is movable against an access cross-section of a doorway which is remote from the running axis in order to close it.

[0009] The sliding door device should be simple in design, inexpensive to manufacture, and easy to operate. Furthermore, the sliding door device should be able to operate for a relatively long period of time without maintenance.

[0010] The door element or elements should be particularly advantageously movable into the locking position so that elements of a door frame and door seals can be designed particularly easily and a particularly reliable sealing of the door passage is achieved when the door elements are extended into the locking position.

[0011] Curved movements of the door elements when moving into the closed position should be avoided wherever possible so that the movements of the sliding door appear unobtrusive and aesthetically pleasing and device components can be designed particularly simply.

[0012] Device components such as gripping elements that are to be attached to the door frame separately from the sliding door should be avoided so that no obstacle protrudes into the doorway after the sliding door has been opened.

[0013] This object is achieved with a sliding door device according to claim 1 and a sliding door according to claim 15. Advantageous embodiments of the invention are specified in further claims.

[0014] The sliding door device, which is used to close a doorway having at least one access cross-section, comprises at least one sliding door, which is displaceably mounted along a running axis by means of at least one door bearing device, which is displaceable along the running axis in a closing direction which is opposite to an opening direction, up to a closing 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 articulates 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 can be guided outwards from a rest position close to the mounting body into a closed position in order to close off the facing access cross-section.

[0015] According to the invention, that the mounting body is equipped with at least two door lever mechanisms, each having a central bearing device and a door lever and a door element bearing device for each of the door elements, that a first door lever end piece of the door lever is rotatably held in the associated central bearing device by a central shaft, and that a second door lever end piece of the door lever is rotatably held in the associated door element bearing device, which is connected to the associated first or second door element, by a door element shaft, that the door levers of the at least two door lever mechanisms can be rotated with the associated first or first and second door elements in one direction of rotation against the mounting body into the rest position and from the rest position in an opposite direction of rotation into the closed position, and that the sliding door is connected to at least one support device on a first door end face facing the closure element,which serves to interact with the closing element and to transmit a recoil force from the closing element to the first door element or to the first and second door elements.

[0016] The rotation of the door lever with the associated first or first and second door elements in one direction of rotation against the mounting body into the rest position and from the rest position in the opposite direction of rotation into the locked position occurs until the respective position is reached, with a rotation angle that is preferably less than 90°. The rotation angle depends on the length of the door lever and the distance of the access cross-sections from the running axis.

[0017] A doorway is typically enclosed by a door frame, which defines a short passageway with an access cross-section on both sides. At least one of the access cross-sections can be closed by means of the first or second door element of the sliding door according to the invention such that the doorway is flush on one or both sides of the sliding door. The door elements preferably tightly fill the access cross-sections of the doorway. The door elements preferably overlap parts of the door frame or adjacent wall elements or profile parts such that a tight seal is achieved and, for example, a sealing element can be enclosed.

[0018] The mounting body of the sliding door is preferably narrow, so that the thickness of the sliding door, i.e., its diameter perpendicular to the running axis, is essentially determined by the thickness of the door elements. The door elements are preferably provided with door recesses into which device parts connected to the mounting body, such as parts of the door lever mechanism or parts of the sliding devices, can be countersunk. The mounting body can therefore be equipped with devices without increasing the thickness of the sliding door.

[0019] The mounting body, which is preferably provided with mounting openings, is, for example, a narrow metal structure aligned in a plane or a narrow plate made of wood or plastic.

[0020] The sliding door is slidably mounted at the top or at both the top and bottom by a door bearing device, which typically comprises a running rail or guide rail that interacts with at least one sliding device or guide device. The running rail or guide rail can be held stationary, while the sliding device or guide device is connected to the sliding door. However, the running rail or guide rail can also be connected to the sliding door, while the sliding device or guide device is stationary.

[0021] The track and / or guide rail can extend to the door opening or to the end element. It is important that the mounting body can be moved over the required area.

[0022] The sliding devices can be conventional carriages with rollers mounted for movement in a suitably designed guide rail. The sliding devices can also have sliding elements that can be moved along a guide rail. Furthermore, the sliding devices can be part of a linear motor or connected to at least part of a linear motor. The movement of the sliding 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.

[0023] The sliding door can be moved manually and moved into the closed position. However, in preferred embodiments, an electrical, mechanical, or electromechanical drive device is provided, by means of which the sliding door can be automatically moved along the track at least in a partial area of the travel path, preferably until the door element or elements are moved into the closed position.

[0024] For example, at least one electric drive motor is integrated into one of the sliding devices, which directly drives the sliding devices and, for example, engages with a gear in a toothed belt provided within the guide rail. A drive motor can 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 can be implemented as a linear motor, which preferably comprises parts of the sliding devices or is connected to them.

[0025] Furthermore, a mechanical or magnetic retractor can be provided as the drive device, by means of which the sliding door is detected before it reaches the closed position and moved into the closed position. For example, the sliding door is moved manually until it is detected by the retractor and moved into the closed position. The sliding door can then be manually detected and returned from the closed position, whereby the door element or elements are moved from the closed position back against the mounting body into the rest position and the sliding door can be retracted, for example, into a door compartment. During this process, the retractor is retensioned or loaded and, for example, decoupled from the sliding door or from a coupling element provided in the guide rail.

[0026] If no support device is provided and the door elements are guided against the closing element, a force is transferred from these to the door levers, which are preferably directed forward in the rest position of the sliding door, thus exerting only a low torque on the door levers. Rotation of the door levers is also prevented by adhesive forces transferred from the closing element to the facing door ends. The door levers are preferably directed forward toward the closing element in all sliding door configurations, particularly whether straight or inclined.

[0027] The pivoting out of the door elements is only made possible by at least one support device according to the invention. Support devices can be available in various designs and fulfill different functions, all of which, however, serve to ensure the largely frictionless extension of the door elements when the sliding door reaches the closing element. For example, it can be provided that adhesive forces that block the door ends are canceled out by means of a support device. Instead, the support device forms a bearing device on the door ends, which ensures that the door ends can be moved along the closing element with virtually no friction. Alternatively, support devices can be provided that convert a force emitted by the closing element parallel to the running axis into a force oriented perpendicular to the running axis, which acts on at least one of the door elements.

[0028] The support device and the closure element can interact magnetically and / or mechanically. Force transmission can therefore occur through direct contact or through magnetic interaction between oppositely polarized magnets located in the closure element and on the support device.

[0029] The closing element is thus integrated into the sliding door system as a functional element via the support device, which allows the sliding door and the devices arranged therein to be designed much more simply. The simpler structure of the sliding door reduces its manufacturing effort and weight, making it easier to operate and / or drive.

[0030] The simpler design of the sliding door reduces the number of components. The remaining components can be made more stable, allowing the resulting sliding door to operate virtually maintenance-free over a very long service life.

[0031] The interaction of the support device with the closing element initiates and / or assists the swinging-out process of the door elements. The support device advantageously transfers forces from the closing element to the door element(s), while avoiding forces that would impede the lateral ejection or swinging-out of the door elements.

[0032] As they move into the closed position, the door elements are guided along the end face of the closure element, which preferably has a flat front surface. As soon as the sliding door, guided along the running axis, reaches the end face of the closure element, at least one or more door elements are extended perpendicular to the running axis into the closed position. This vertical movement into the closed position allows for a particularly advantageous design of closure profiles or end faces or parts of a door frame that define the associated access cross-section. Profile elements can advantageously be aligned parallel or perpendicular to the running axis. Curved shapes can be avoided.Furthermore, conventional sealing elements, in particular symmetrically designed sealing elements, can be used, which are subjected to axial load when the door elements move into the closed position and seal an associated door gap particularly reliably.

[0033] In preferred embodiments, at least one of the door element shafts, which rotatably holds the second door lever end piece of the associated door lever, is held in the associated door element bearing device so that it can be displaced with play or elastically displaced without play, so that different travel paths of the door elements from the rest position to the closed position, which are based on a corresponding design of the sliding door arrangement or on manufacturing tolerances, can be compensated. Preferably, the door element shaft is held in the associated door element bearing device by a rotatably mounted adapter so that it can be displaced with play and / or elastically displaced.

[0034] Preferably, the adapter is held in the door element bearing device by an adapter shaft, preferably within an angular range that is necessary to compensate for different travel paths. Preferably, the adapter has an elastic or elastically mounted pressure element that rests against a device part of the door element bearing device, for example against part of a bearing cup or directly against the associated door element. Since the lateral extension of the door elements typically occurs symmetrically, the first door element, for example, can be guided further to the closed position when the second door element has already reached the end position. The door levers assigned to the second door element can subsequently be moved further in the assigned door element bearing devices until the first door element has also reached the closed position.This ensures that both door elements can be moved into the locking position to tightly close the doorway.

[0035] The sliding door is preferably equipped with several identical or different support devices, allowing the door elements to swing out particularly easily. For example, support devices are provided on the underside and / or top of the sliding door. Support devices of different types can also be easily combined with one another, allowing, for example, advantageous force transmission to the door elements while avoiding the influence of disruptive forces.

[0036] Preferably, the first or the second door element or the first and the second door element are each connected to at least one first support device which has at least one support element which faces the closure element and, upon reaching the closure element, transmits a force from the closure element to the associated first or second door element and which, when the associated first or second door element is pivoted out as a result, can be guided along the closure element and serves for the front-side mechanical and / or magnetic mounting of the associated first or second door element.

[0037] The at least one support element is preferably a roller which is provided for rolling on a front surface of the closure element, or a sliding element which is provided for sliding along the front surface of the closure element, or a magnetic element which is kept at a distance from the magnetic front surface of the closure element or at least one counter-magnet of opposite polarity connected thereto during displacement along the front surface of the closure element.

[0038] 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 running axis. The adjustment device compensates for asymmetries that are provided by the design of the sliding door device or that are based on manufacturing tolerances of the sliding door device. This ensures that the support devices of both door elements come into mechanical or magnetic contact with the closure element simultaneously when the sliding door is displaced, and that the forces acting on the sliding door are distributed equally between the two door elements.

[0039] Alternatively or in addition to the first support device, at least one second support device is provided, which comprises a support lever which is rotatably supported by the mounting body or by the first or second door element by means of a support bearing shaft and which faces the closure element with a first support lever end piece and the adjacent second or first door element or the mounting body with a second support lever end piece. When the sliding door is displaced against the closure element, the first support lever end piece thus first strikes the closure element, whereby the support lever is rotated and the second support lever end piece is guided against the adjacent door element or against the mounting body, thereby causing the door element or elements to be ejected.

[0040] The mounting body can also advantageously hold a plurality of second support devices with support levers, one of which interacts, for example, with the first door element and the other with the second door element in order to eject the latter laterally upon approaching the closure element. Alternatively, each of the door elements can have at least one support lever that interacts with the mounting body. When mounting a support lever on the mounting body or when a support lever acts on the mounting body, it should be noted that the mounting body is displaceable along the running axis relative to the door elements and the length of the second support lever end piece must be selected accordingly.

[0041] It is therefore preferably provided that the support lever is arranged on one of the door elements and interacts with the other door element.

[0042] 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, which comprises an expanding lever mechanism that is connected to the first door element by a first expanding lever bearing and to the second door element by a second expanding lever bearing, and which comprises a force transmission element that is connected to the expanding lever mechanism and faces the closing element. Provision is made for the expanding lever mechanism to move the expanding lever bearings apart as soon as a force is applied from the closing element via the force transmission element to the expanding lever mechanism. The expanding lever mechanism splits a force acting parallel to the running axis into outward-acting forces perpendicular to it, by means of which the door elements are guided outwards against the access cross-sections to be closed.

[0043] The force transmission element is preferably designed such that no disruptive effects or noises occur when it strikes the end element. The force transmission element preferably has a larger contact surface and is preferably made of a hard-elastic material, such as POM. When using magnetic force transmission elements, mechanical impact on the end element can be completely avoided or significantly dampened. In this case, too, the combination of mechanical and magnetic support elements is advantageously possible. Preferably, several third support devices are provided, the force transmission elements of which are preferably connected to one another at the front.

[0044] In preferred embodiments, it is provided that the first or the second door element can be connected to the mounting body by a holding device, or that the first and the second door elements can be connected to one another by a holding device. The holding device preferably comprises cooperating holding magnets or a locking device, which for example comprises locking tongues or locking elements that can be inserted into one another. The door elements and the mounting body can thus be transferred into a single unit for travel into the rest position. Mutual movements and associated noises of the door elements are avoided. The holding force exerted by the holding devices is overcome upon activation of the provided support device, so that the door elements can subsequently be transferred into the closed position.

[0045] In further preferred embodiments, it is provided that the at least one door element or one of the door elements is provided on the door front side with a cover aligned parallel to the front surface of the closure element, through which the space between this door element and the mounting body or the space between the two door elements can be closed off. If only one door element is present, the space between this door element and the mounting body is closed off at the front. If, however, two door elements are provided, the space between these two door elements is closed off. The cover can also be connected to the mounting body.

[0046] When the door elements are moved from the locked position to the rest position, the space between the door elements is also closed off at the front. This is why the sliding door, when in the rest position of the door elements, is no different from a conventional sliding door and there are no obstructive openings into which people could reach. When moving back from the locked 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 the door levers are each connected to at least one door lever spring, for example a tension spring or a torsion spring, which exerts a force to turn the associated door lever back from the locked position to the rest position.

[0047] In a further preferred embodiment, a door compartment is provided which is delimited on one side by a door compartment wall which is aligned parallel to the running axis and with one wall end facing the closing element and in between delimits the access cross-section or one of the access cross-sections, or which is delimited on both sides by a door compartment wall which is aligned parallel to the running axis and with one wall end facing the closing element and in between delimits one of the access cross-sections.

[0048] In preferred embodiments, it is provided that the first door element or the first and second door elements have a first door end facing the closing element and a second door end facing the associated door compartment wall, and that in the closed position of the first door element or the first and second door elements, the first door end partially overlaps an end profile connected to the closing element and that the second door end overlaps part of the facing wall end. A rubber seal can advantageously be arranged between the overlapping parts. By means of the door element or the door elements, the associated access cross-sections of the doorway can thus be tightly closed.

[0049] Preferably, at least one first support device with a support element is also arranged on the second door end face of the door element or the door elements, which support element rests against the associated wall end face in the closed position of the door element and forms a bearing device.

[0050] For manual operation of the sliding door, at least one of the door elements is preferably provided with a door handle connected to the mounting body by a pull element, for example, a pull rod. By operating the door handle, the mounting body can be retracted, thereby returning the door elements to their rest position and, if necessary, coupling them together.

[0051] If the door elements are heavy, they are preferably supported on the floor by bearing devices such as rollers or the like.

[0052] The invention is explained in more detail below with reference to the drawings. In the drawings: Fig. 1a shows a sliding door device 100 according to the invention in a preferred embodiment with a sliding door 1, which is displaceable along a running axis x from a door compartment 99, which is delimited by door compartment walls 92, into a door passage 90 up to a closing element 91 and which has a mounting body 11 with door elements 12A, 12B, which, after reaching the closing element 91, are displaceable from a rest position in opposite directions into a closed position in which they close off access cross-sections 901, 902 of the door passage 90; Fig. 1b shows the sliding door device 100 of Fig. 1a after the sliding door 1 has reached the end element 91, but the door elements 12A, 12B have not yet been fully extended into the access cross-sections 901, 902 of the doorway 90; Fig. 1c the sliding door device 100 of Fig. 1a after the sliding door 1 has reached the end element 91 and the door elements 12A, 12B have been extended into the access cross-sections 901, 902 of the doorway 90; Fig. 2a shows a part of the sliding door device 100 of Fig. 1a in sectional view; Fig. 2b part of the sliding door device 100 of Fig. 1b in sectional view; Fig. 2c a part of the sliding door device 100 of Fig. 1c in sectional view; Fig. 3 shows part of the sliding door device 100 of Fig. 2b in a further illustration; Fig. 3b the part of the sliding door device 100 of Fig. 2c in a further illustration; Fig. 4a shows part of the sliding door device 100 of Fig. 2b from below; Fig. 4b the part of the sliding door device 100 from Fig. 2c from below; Fig. 5 the sliding door 1 removed from the sliding door device 100 with a plate-shaped mounting body 11, which is shown in a sectional view and which is connected by lower and upper door lever mechanisms 4B, 4T to the plate-shaped door elements 12A, 12B, which are also shown in a sectional view; Fig. 6 the upper part of the sliding door 1 of Fig. 5 with an 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 on the door end faces 121 of the two door elements 12A, 12B and with a second support device 5, which is arranged on the door end face 121 of the second door element 12; Fig. 7 shows the part of the sliding door 1 of Fig. 6 from the rear side with the door lever mechanism 4T, which has a central bearing device 41 with a mounting part 410, which is connected on each side by a door lever 43 in an articulated manner to a door element bearing device 42, which are mounted in the first and second door elements 12A, 12B and which in this embodiment each have a bearing cup 420; Fig. 8 that of the sliding door 1 of Fig. 7 detached door lever mechanism 4T with a separately shown bearing cup 420, which has been detached from one of the door element bearing devices 42, which in this preferred embodiment has an adapter 421, which is connected to the associated door lever 43 by means of a door element shaft 4321 and is rotatably held within the bearing cup 421 by means of an adapter shaft 4211 in order to compensate for an asymmetry based on the design or manufacturing tolerances; Fig. 9a one of the door element bearing devices 42 of Fig. 8 with a partially cut-open bearing pot 420; Fig. 9b the door element bearing device 42 of Fig. 9a from the back; Fig. 9c from the door element bearing device of Fig. 9b removed adapter 421; Fig. 10adas from the sliding door device 100 of Fig. 2a removed door lever mechanism 4T with inwardly turned door levers 43; Fig. 10b, which is removed from the sliding door device 100 of Fig. 2b removed door lever mechanism 4T with partially turned outward door levers 43; Fig. 10c, which is taken from the sliding door device 100 of Fig. 2c removed door lever mechanism 4T with door levers 43 completely turned outwards; Fig. 11a a part of the first door element 12A with a door handle 16 arranged in a handle shell 169, which is connected to the mounting body 11 by a pull rod 161, which is guided through a through opening 1690 in the handle shell 169; Fig. 11b the first door element 12A and the mounting body 11 of Fig. 11a from the rear side with the pull rod 161, which is connected to a handle bearing device 168 mounted on the mounting body 11; Fig. 12a the sliding door device 100 in a preferred embodiment with a third support device 2; and Fig. 12bthe third support device 2, which consists of the sliding door device of Fig. 12a was taken.

[0053] Fig. 1 shows a sliding door device 100 according to the invention in a preferred embodiment with a sliding door 1, which can be displaced along a running axis x from a door compartment 99 in a closing direction opposite to an opening direction, into a door passage 90 up to a closing element 91. The door compartment 99 is bounded on both sides by door compartment walls 92, which have wall end faces 921, which, together with the closing element 91, delimit the door passage 90. The door passage 90 is therefore a passage channel with a length corresponding to the distance between the outwardly facing front surfaces 922 of the door compartment walls 92. The channel cross-sections at the entrance and exit of this passage channel are referred to below as access cross-sections 901, 902. The access cross-sections 901, 902 thus lie in a plane with the outward-facing front surfaces 922 of the door compartment walls 92.Also shown as examples are a floor piece 94 and a ceiling piece 93, which may be part of a building or the sliding door arrangement.

[0054] The sliding door 1 is held displaceably at the top by an upper door bearing device 8 and at the bottom by means of a lower door bearing device 7.

[0055] For example, a guide rail 81 of the upper door bearing device 8 is held by the ceiling piece 93, along which sliding devices, such as those shown in Fig. 5 The bottom piece 94 preferably holds guide elements 72 of the lower door bearing device 7, one of which is Fig. 5 is shown as an example. The base piece 94, the ceiling piece 93, the end element 91, and optionally a rear wall 95 of the door compartment 99 form a frame structure 9, by means of which the sliding door device 100 was constructed as an example.

[0056] The sliding door 1 comprises a mounting body 11, which is connected to the aforementioned sliding devices 82 (see Fig. 5 ) and on both sides a door element 12A, 12B by means of door lever mechanisms 4B, 4T (see Fig. 5 ) in such a way that, after reaching the closing element 91, they can be moved from a rest position, for example, adjacent to the mounting body 11, in opposite directions into a closed position in which they close the access cross-sections 901, 902 of the door passage 90. In the rest position, the sliding door 1 has a minimal diameter perpendicular to the running axis x and can be retracted into the relatively narrow door compartment.

[0057] Fig. 1a further shows that the frontal gap between the two door elements 12A, 12B is closed by a panel 19.

[0058] Furthermore, a door handle 16 is shown, which in a preferred embodiment with reference to the Figuren 11a und 11b is described in more detail.

[0059] Fig. 1b shows the sliding door device 100 of Fig. 1a after the sliding door 1 has reached the end element 91, but the door elements 12A, 12B have not yet been fully moved into the closed position.

[0060] Fig. 1c shows the sliding door device 100 of Fig. 1a after the sliding door 1 has reached the end element 91 and the door elements 12A, 12B have been extended in a closing direction y into the access cross-sections 901, 902 of the door passage 90 and have thus reached the closed position. In the closed position, the outer sides of the door elements 12A, 12B lie in a plane with the front surface 922 of the associated door compartment wall 92. The movement in the closing direction y runs along an arc with a radius corresponding to the length of the door lever 43 (see Fig. 8 ). However, since the travel path in the closing direction is very short, the closing direction Y runs approximately perpendicular to the travel axis x. When moving from the rest position to the closed position, the door elements 12A, 12B always remain parallel to each other and aligned with the mounting body 11.

[0061] Fig. 2a shows a part of the sliding door device 100 of Fig. 1a In sectional view. Of the door compartment walls 92, only the wall end faces 921 are shown, which comprise a stepped profile with a thin flange plate. The end element 91 also has end profiles 911 with a thin flange plate on both sides. Between the wall end faces 921 and the end profiles 911, (imaginary) fabric elements were inserted, which are congruent with the access cross-sections 901, 902, which are covered by the door elements 12A, 12B in the closed position. The doorway 90 extends from the first to the second access cross-section 901, 902.

[0062] The 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, whose thickness or diameter perpendicular to the running axis x is smaller than the thickness of the plates, possibly wooden plates, of the door elements 12A, 12B. The left 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 a connecting part 822, possibly a threaded rod. The carriage 82 is of conventional construction and comprises a carriage body 820, which holds two rollers 821 and the connecting part 822. Fig. 5 shows that the running gear 82 is guided in a guide rail 81 which has two side walls which are connected to one another at the top by a central piece and which have oppositely directed foot pieces at the bottom on which the rollers 821 are mounted.

[0063] Fig. 2a further shows that the mounting body 11 is set back relative to the door elements 12A, 12B and the door elements 12A, 12B are held close to the mounting body 11 in the rest position and are possibly separated from the mounting body 11 only by a thin air gap.

[0064] The door end faces 121 facing the closure element 91, which preferably comprise a step, hold first support devices 6, 6T, each of which comprises 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 faces 121, as Fig. 5 shows.

[0065] It is further shown that the space between the door end faces 121 is closed by the panel 19, and the door elements 12A, 12B of the panel 19 visually form a single unit. The panel 19 also prevents manual intervention between the door elements 12A, 12B.

[0066] In this preferred embodiment of the sliding door 1, the second door element 12B also holds a second support device 5, which has a support lever 52, which is connected to a support lever end piece 521 (see Fig. 6 ) of the sliding door 1 in the closing direction and will reach a front surface 910 of the closing element 91 first. The other support lever end piece 522 (see Fig. 6 ) rests against the inside 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.

[0067] Fig. 2b shows a part of the sliding door device 100 of Fig. 1b in sectional view. The cut has cut away a central section of the sliding door 1. In this view, the sliding door 1 has been fully extended from the door compartment 99 and the support lever 52 has already reached the front surface 910 of the end element 91 and, after rotation, has pushed away the first door element 12A. If the first and second door elements 12A, 12B are held in the rest position by a holding device 150, for example by corresponding holding magnets 151, 152 (see Fig. 6 ) are connected to each other, this connection was released when the support lever 52 was rotated.

[0068] The first support devices 6T, with their support rollers 62, also rest against the front surface 910 of the closure element 91, which is why the door elements 12A, 12B cannot be moved any further, but can only deflect laterally upon further displacement of the mounting body 11. During this process, the support elements 62 serve to support the door elements 12A, 12B, allowing them to be guided outward along the closure element 91 into the closed position with virtually no resistance.

[0069] Fig. 2b further shows that first support devices 6, 6T are also provided on the rear side of the door elements 12A, 12B, which are aligned with support elements 62 in the opening direction against the wall end faces 921 of the door compartment walls 92 and which can be guided practically frictionlessly along profile surfaces of the wall end faces 921. The door elements 12A, 12B can therefore be guided into the closed position and back again on both sides without friction.

[0070] Mechanical contact is achieved through the support elements 62, which are configured as rollers. However, if mutually repelling magnetic elements are arranged on the door elements 12A, 12B, the end element 91, and the wall end faces 921, this displacement can occur without mechanical contact.

[0071] Fig. 2c shows a part of the sliding door device 100 of Fig. 1c in sectional view. In this view, it can be seen that the door elements 12A, 12B are held by door levers 43 of two upper door lever assemblies 4T and two lower door lever assemblies 4B. The door levers 43 are, on the one hand, in a central bearing device 41 connected to the mounting body 11 (see Fig. 8 ) and on the other hand in door element bearing devices 42 which are connected to the door elements 12A, 12B, rotatably supported.

[0072] During the closing process, in which the door elements 12A, 12B were stopped at the end element 91 and the mounting body 11 was moved further along the running axis x, the door levers 43 on both sides were rotated completely outward. This moved the door elements 12A, 12B into the closed position, in which they close off the access cross-sections 901, 902. The front door end faces 121 overlap the end profiles 911, and the rear door end faces 122 overlap the wall end faces 921. Sealing elements can advantageously be provided between them.

[0073] If the second support device 5 is not present, the support elements 62 first impact the front surface 910 of the closure element 91 and transmit higher forces at the beginning of the ejection of the door elements 12A, 12B. However, the movement of the door elements 12A, 12B into the rest position occurs as already described. The second support device 5 is therefore only used optionally to facilitate the opening process and reduce the recoil forces.

[0074] The Figuren 2a - 2c further show that the door levers 43 in this embodiment of the sliding door device 100 are aligned forwards against the closing element 91 and are rotated outwards and backwards into the closed position when traveling.

[0075] Fig. 3a shows the part of the sliding door device 100 of Fig. 2b in another illustration.

[0076] Fig. 3b shows the part of the sliding door device 100 of Fig. 2c in a further illustration with the drives 82, which are connected by the connecting part 822 to a mounting carriage 823, which is held in a mounting rail 824, which is mounted by means of rail flanges 8240 on the upper side of the mounting body 11.

[0077] Fig. 4a shows the part of the sliding door device 100 of Fig. 2b from underneath.

[0078] Fig. 4b shows the part of the sliding door device 100 of Fig. 2c from underneath.

[0079] 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 bottom 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 can also be used in Fig. 5 is shown. The mounting body 11 is therefore guided in one plane by means of the guide rail 81 and the guide elements 72.

[0080] 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 a sectional view and is connected to the plate-shaped door elements 12A, 12B by lower and upper door lever mechanisms 4B, 4T, which are also shown in a sectional view. A central section of the sliding door 1 was cut out by horizontal cuts. The front part of the first door element 12A was also cut away to expose the front-side door lever mechanisms 4T, 4B, which are mounted in recesses 110 of the plate-shaped mounting body 11. The door elements 12A, 12B are each connected to a first support device 6T, 6B at the front on the top and bottom. Between them, a second support device 5T, 5B with a support lever 52 is held at the top and bottom of the second door element 12B.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 be advantageously moved apart when the mounting body 11 is guided along the running axis x in the closing direction against the closure element 91. The panel 19 is held between the second support devices 5B, 5T, for example, by the door end face 121 of the second door element 12B.

[0081] At the top, the sliding door 1 is held by an upper door support device 8, which comprises a guide rail 81 and two sliding devices 82 connected to the mounting body 11. At the bottom, the sliding door 1 is held by a lower door support device 7, which comprises the downwardly opening guide rail 71 and guide element 72, one of which is shown as an example.

[0082] The drive of the mounting body 11 is carried out manually or preferably by means of at least one drive device 3, which is Fig. 5 is shown schematically. The drive device 3 can be an electric motor which is connected to the sliding door 1 or the sliding devices 82 via a drive element 31, for example a toothed belt. The drive motor can be integrated into the sliding devices 82, wherein, for example, a gear connected to a motor shaft engages with a toothed belt or a toothing which runs parallel to the guide rail 81. The drive device 3 can also be a linear motor, which preferably comprises the sliding devices 82 or parts thereof. The drive device 3 can further be a so-called retraction device which comprises a tension spring or a magnetic device by means of which the sliding door 1 is pulled into the closed position. When the sliding door 1 is opened, the tension spring is recharged and the sliding door 1 is decoupled from the retraction device.A retraction device with a tension spring is known, for example, from EP2217782 or DE202021004263U1. A retraction device with a magnetic device is known, for example, from CH717364.

[0083] 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 end faces 121 of the two door elements 12A, 12B and with a second support device 5T, which is arranged at the top of the door end face 121 of the second door element 12.

[0084] The first support devices 6, 6T comprise a device housing 60 in which a bearing block 61, which holds the support element 62, for example, by means of a bearing shaft, is slidably held and is preferably selectively displaceable by means of an adjusting screw 65. By actuating the adjusting screw 65, the support elements 62 of all first support devices 6, 6B, 6T can be aligned in a plane.

[0085] 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 closure element 91, protrudes from the bearing housing 50. At the side, the second support lever end piece 522, which faces the first door element 12A, protrudes from the bearing housing 50.

[0086] 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.

[0087] The mounting rail 824 of the displacement device 82 is connected to the top of the mounting body 11 by rail flanges 8240. The mounting carriage 823 is held in the mounting rail 824 and is connected to the drive body 820 of the displacement device or drive 82 by the connecting part 822.

[0088] In order to allow the door elements 12A, 12B to be guided close to the mounting body 11, door recesses 120T are provided in the door elements 12A, 12B, into which parts of the sliding device 82, which project beyond the mounting body on both sides, can be inserted.

[0089] 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 supported by a first door lever end piece 431 by the central bearing device 41 and by a second door lever end piece 432 by a facing door element bearing device 42. The door element bearing devices 42 each comprise a bearing cup 420, which is countersunk into the associated door element 12A, 12B and is preferably screwed, latched, or magnetically held.

[0090] Door element bearing devices can also be used that are not recessed into the corresponding door element.

[0091] In a simple embodiment, the second door lever end piece 432 is rotatably but non-movably mounted in 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, can hinder the further movement of the mounting body 11 along the running axis x and thus also the closing process of the other door element 12B or 12A.

[0092] 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 be moved further, even if the relevant door element 12A or 12B has already reached its closed position.

[0093] In the design of Fig. 7 the door element bearing devices 42 have an adapter 421 which is connected to the associated second door lever end piece 432, which is rotatably held in a certain range by means of an adapter shaft 4211 which is inserted into the bearing cup 420, and which comprises an elastic pressure element 4215 which bears against the bearing cup 420 and keeps the second door lever end piece 432 free of play.

[0094] Fig. 8 shows the sliding door 1 of Fig. 7 detached door lever assembly 4T with a separately shown bearing cup 420 that has been detached from the left door element bearing device 42 to expose the adapter 421. The adapter 421 has an adapter body 4210 with a first adapter channel 42101 into which the adapter shaft 4211 is inserted, which is held in first cup openings 4201 of the bearing cup 420. The adapter 421 is rotatable 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 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. In order to ensure that the adapter 421 can move smoothly within the bearing cup 420, the adapter body 4210 has a bearing roller 4212 at the top and bottom that can roll along the inside of the bearing cup 420.To hold the adapter 421 without play and to avoid impact noises, the elastic or elastically or spring-elastically held pressure element 4215 is provided in the adapter body 4210, which can abut against a rear wall 4203 of the bearing cup 420.

[0095] Furthermore, the adapter body 4210 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 held.

[0096] Preferably, door lever springs 491, 492 are inserted into the door lever mechanism 4T to exert torques on the door levers 43 such that they are automatically rotated against the mounting wall 11 when the mounting wall 11 is retracted, thereby releasing the door levers 43. Two torsion springs 491, 492 are shown. However, other elastic elements or springs can also be used.

[0097] Fig. 9a shows one of the door element bearing devices 42 of Fig. 8 with a partially cut open 420 bearing pot.

[0098] Fig. 9b shows the door element bearing device 42 of Fig. 9a from the back.

[0099] Fig. 9c shows the door element storage device from Fig. 9b removed adapter 421. Also shown is a pressure spring, by means of which the pressure element 4215 is pushed outward. However, the pressure element 4215 itself can also be elastic.

[0100] Fig. 10a shows the sliding door device 100 of Fig. 2a removed door lever mechanism 4T with inwardly turned door levers 43. The bearing pots 420 are along the Fig. 9a cut along the drawn line.

[0101] Fig. 10b shows the sliding door device 100 of Fig. 2b removed door lever assembly 4T with partially turned outward door levers 43.

[0102] Fig. 10c shows the sliding door device 100 of Fig. 2c removed door lever mechanism 4T with door levers 43 turned completely outwards. The upper door element bearing device 42 is along the Fig. 9a The section runs through the adapter 421 and shows the pressure element 4215, which rests against the rear wall 4203 of the bearing cup 420.

[0103] Fig. 11a shows a part of the first door element 12A with a door handle 16 arranged in a handle shell 169, which is connected to the mounting body 11 by a pull rod 161, which is guided through a through opening 1690 in the handle shell 169. By pulling the door handle 16, the mounting body 11 can be retracted, whereby the door elements 12A, 12B are returned from the closed position to the rest position adjacent to the mounting body 11 and the sliding door 1 can be pushed back into the door compartment 90.

[0104] Fig. 11b shows the first door element 12A and the mounting body 11 of Fig. 11a from the rear side with the pull rod 161, which is connected by means of a handle bearing shaft 1681 to a handle bearing device 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 shell 169.

[0105] Fig. 12a shows the sliding door device 100 in a preferred embodiment with a third support device 2, which comprises a spreading lever mechanism 24. The spreading lever mechanism 24 is connected to the first door element 12A by a first spreading lever bearing 291 and to the second door element 12B by a second spreading lever bearing 292. Furthermore, a force transmission element 22 is provided, which is connected to the spreading lever mechanism 24 and faces the closing element 91. When a force acts from the closing element 91 via the force transmission element 22 on the spreading lever mechanism 24, the spreading lever bearings 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, since the door elements 12A, 12B can be moved into the closed position without touching the closing element 91.A second support device 5 can be omitted. First support devices 6, one of which is shown schematically, are optionally provided if the door elements 12A, 12B are guided completely against the closure element 91.

[0106] Preferably, a further third support device 2 is provided, for example, on the underside of the sliding door 1. The force transmission elements 22 of the third support devices 2 can be connected to one another by a connecting piece 220, which can also serve as a cover 19.

[0107] Since the door elements 12A, 12B in this preferred embodiment of the sliding door 1 are moved apart by means of the spreading lever mechanism 24, the door levers 43 can be directed forwards or backwards.

[0108] Fig. 12b shows the third support device 2, which consists of the sliding door device of Fig. 12awas removed. The spreading lever mechanism 24 comprises two pairs, each with two spreading levers 241, 242, which are connected to one another by spreading lever shafts 245, 246. The spreading levers 241, 242 of each pair are connected to one another by spreading lever shafts 247, which are held in the spreading lever bearings 291, 292. The spreading 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 spreading lever mechanism 24 shown, other spreading devices can also be used, which allow the door elements 12A, 12B to be pushed apart when a force is applied.

[0109] In the described embodiments, a door lever mechanism 4T, 4B comprises two door levers 43 each, which are both advantageously held by only one central shaft 4311. However, it is also possible to use lever mechanisms 4T, 4B each holding only one door lever 43, or having several central shafts 4311, by means of which each door lever 43 is rotatably held. List of reference symbols:

[0110] 1 Sliding door 100 Sliding door device 11 Mounting body 110 Mounting opening 12 A First door element 12 B Second door element 120 B Lower door recess 120 T Upper door recess 121 First door end 122 Second door end 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 part 168 1 Handle bearing shaft 168 2 Return spring 169 Handle shell 169 Through opening 19 Panel 2 Third support device 22 Force transmission element 24 Spreading lever mechanism 241, 242 Pair of levers with spreading levers 245, 246,247Expansion lever shafts 291First expansion lever bearing 292Second expansion lever bearing 3Drive device, preferably with control 31Drive element 4BLower door lever mechanism 4TUpper door lever mechanism 41Central bearing device 410Assembly part 42Door element bearing device 420Bearing cup 4201First cup opening for the adapter shaft 4211 4202Second profile opening for the door element shaft 4321 4203Rear wall 421Adapter 4210Adapter body 42101First adapter channel for the adapter shaft 4211 42102Second adapter channel for the retaining shaft 4219 42103Third adapter channel for the door element shaft 4321 4211Adapter shaft 4212Bearing rollers 42121Bearing shaft for the bearing roller 4212 4215 Pressure element 42151 Pressure spring 4219 Retaining shaft 43 Door lever 431 First door lever end piece 4311 Central shaft 432 Second door lever end piece 4321 Door element shaft 491, 492 Door lever springs 5, 5B, 5T Second support device 50 Bearing housing 51 Support bearing shaft 52 Support lever 521 First support lever end piece 522 Second support lever end piece 6, 6B,6First support device 60Device housing 61Bearing block with adjustment device 62Support element, support roller 65Adjusting screw 7Lower door bearing device 71Guide rail (stationary or mobile) 72Guide element (mobile or stationary) 711Mounting screws 8Upper door bearing device 81Running rail (stationary or mobile) 82Sliding device (mobile or stationary) 820Device body 821Running rollers 822Connecting part, connecting rod 823Mounting carriage 824Mounting rail 8240Rail flanges 9Frame structure 90Doorway 901Access cross-section, entrance cross-section of the doorway 902Access cross-section, exit cross-section of the doorway 91End element 910Front face 911End profile 92Door compartment walls 921Wall front of the Door compartment wall 92 922Outward-facing front surface of the door compartment wall 92 93Ceiling piece 94Floor piece 95Rear wall of the door compartment 99Door compartment xSliding direction yClosing direction,

Claims

1. Sliding door device (100) for closing off a doorway (90) having at least one access cross-section (901; 902), comprising a sliding door (1), - which is mounted displaceably along a running axis (x) by means of at least one door bearing device (8), - which is displaceable along the running axis (x) in a closing direction opposite to an opening direction up to a closing element (91) which delimits the doorway (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 articulates 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 can be moved outwards from a rest position near the mounting body (11) into a closed position can be guided to close the facing access cross-section (901; 902), 。characterized by that the mounting body (11) is equipped with at least two door lever mechanisms (4T; 4B), each having a central bearing device (41) and, for each of the door elements (12A, 12B), a door lever (43) and a door element bearing device (42), that a first door lever end piece (431) of the door lever (43) is rotatably supported in the associated central bearing device (41) by a central shaft (4311), and a second door lever end piece (432) of the door lever (43) is rotatably supported in the associated door element bearing device (42) connected to the associated first or second door element (12A; 12B) by a door element shaft (432), thatthe door levers (43) of the at least two door lever mechanisms (4T; 4B) with the associated first or first and second door elements (12A; 12B) are rotatable in one direction of rotation against the mounting body (11) into the rest position and from the rest position into an opposite direction of rotation into the closed position, and that the sliding door (1) is connected on a first door end face (121) facing the closing element (91) to at least one support device (2; 5; 6) which serves to interact with the closing element (91) and to transmit a recoil force from the closing 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, characterized in that the first door element (12A) or the first and second door elements (12A, 12B) can be extended from the rest position perpendicular to the barrel axis (x) into the closed position.

3. Sliding door device (1) according to claim 1 or 2, characterized in that the door element shaft (432) is held elastically displaceably in the associated door element bearing device (42), or that the door element shaft (432) is held elastically displaceably in the associated door element bearing device (42) by an adapter (421) which is rotatably held in the door element bearing device (42) by an adapter shaft (4211) and which has an elastic or elastically mounted pressure element (4215) which bears against 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, characterized in that the door levers (43) are each connected to at least one door lever spring (491, 492) which exerts a force to return the associated door lever (43) from the closed position to the rest position.

5. Sliding door device (1) according to one of claims 1 - 4, characterized in that the first or the second door element (12A, 12B) or the first and the second door element (12A, 12B) are each connected to at least one first support device (6; 6B, 6T) which has at least one support element (62) which faces the closing element (91) and, upon reaching the closing element (91), transmits a force from the closing element (91) to the associated first or second door element (12A, 12B) and which, when the associated first or second door element (12A, 12B) is pivoted out as a result, can be guided along the closing element (91) and serves for the front-side mounting of the associated first or second door element (12A, 12B).

6. Sliding door device (1) according to claim 5, characterized in thatthe at least one support element (62) is a roller which is provided for rolling on a front surface (910) of the closure element (91), or is a sliding element which is provided for sliding along the front surface (910) of the closure element (91), or is a magnetic element which is kept at a distance from the front surface (910) of the closure element (91), which comprises or holds at least one counter-magnet with opposite polarity, during the displacement along the front surface (910) of the closure element (91).

7. Sliding door device (1) according to claim 5 or 6, characterized in that the at least one first support device (6; 6B, 6T) comprises an adjusting device (61) by means of which the at least one support element (62) can be displaced parallel to the running axis (x).

8. Sliding door device (1) according to one of claims 1 - 7, characterized in thatat least one second support device (5; 5B, 5T) is provided, which comprises a support lever (52) which is rotatably held by the mounting body (11) or by the first or second door element (12A; 12B) by means of a support bearing shaft (51) and which faces the closure element (91) with a first support lever end piece (521) and the adjacent second or first door element (12B; 12A) or the mounting body (11) with a second support lever end piece (522).

9. Sliding door device (1) according to one of claims 1 - 8, characterized in thatat least one third support device (2) is provided, which comprises an expanding lever mechanism (24) which is connected to the first door element (12A) by a first expanding lever bearing (291) and to the second door element (12B) by a second expanding lever bearing (292), and a force transmission element (22) which is connected to the expanding lever mechanism (24) and faces the closing element (91), wherein the expanding lever mechanism (24) moves the expanding lever bearings (291, 292) apart as soon as a force is applied from the closing element (91) via the force transmission element (22) to the expanding lever mechanism (24).

10. Sliding door device (1) according to one of claims 1 - 9, characterized in thatthe first or the second door element (12A, 12B) can be connected to the mounting body (11) by a holding device (150), or that the first and the second door element (12A, 12B) can be connected to one another or to the mounting body (11) by a holding device (150), wherein the holding device (150) preferably comprises cooperating holding magnets (151, 152) or a latching device.

11. Sliding door device (1) according to one of claims 1 - 10, characterized in that the at least one door element (12A; 12B) or one of the door elements (12A, 12B) is provided on the door front side (121) with a panel (19) aligned parallel to the front surface (910) of the closure 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 between the two door elements (12A, 12B) can be closed off.

12. Sliding door device (1) according to one of claims 1 - 11, characterized in thatat least one electrical or mechanical drive device (3) is provided, a) which is integrated into one of the displacement devices (82); or b) which is implemented as a linear motor and directly drives the displacement devices (82) or the mounting body (11); or c) which is implemented as an electric motor that drives the displacement devices (82) or the mounting body (11) by means of a drive element; or c) which is implemented as a mechanical retraction device and is connected or connectable to the sliding door (1) or the mounting body (11); or d) which is implemented as a magnetic retraction device and 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, characterized in thata door compartment (99) is provided a) which is delimited on one side by a door compartment wall (92) which is aligned parallel to the running axis (x) and with a wall end face (921) facing the closing element (91) and delimits one of the access cross-sections (901; 902) therebetween, or b) which is delimited on both sides by a door compartment wall (92) which is aligned parallel to the running axis (x) and with a wall end face (921) facing the closing element (91) and delimits one of the access cross-sections (901; 902) therebetween.

14. Sliding door device (1) according to claim 13, characterized in thatthe first door element (12A) or the first and second door elements (12A; 12B) have a first door end face (121) facing the end element (91) and a second door end face (122) facing the associated door compartment wall (92), and in that in the closed position of the first door element (12A) (12A) or of the first and second door elements (12A; 12B), the first door end face (121) partially overlaps an end profile (911) connected to the end element (91) and in that the second door end face (122) overlaps part of the facing wall end face (921).

15. Sliding door device (1) according to claim 13 or 14, characterized in that at least one first support device (6, 6T, 6B) with a support element (62) is arranged on the second door end face (122), which in the closed position of the associated door element (12A, 12B) rests against the associated wall end face (921).

16. Sliding door device (1) according to one of claims 1 - 15, characterized in thatat least one of the door elements (12A, 12B) has a door handle (16) which is connected to the mounting body (11) by a pulling element (161).

17. Sliding door (1) for a sliding door device (1) according to one of claims 1 - 16.

Images