Closing device for sliding door arrangement and sliding door arrangement

Abstract

A closing device (1) for a sliding door device (100) having at least one sliding door (5) is provided, comprising a device body (10), a first roller set (11) held displaceable, a second roller set (12) held stationary by the device body (10), a tension spring (15) connected directly or indirectly to the first roller set (11) via a first spring end piece (151), and is connected directly or indirectly to the second roller group (12) by a second spring end piece (152); and a pull cord (13) which is guided around the first roller group (11) and the second roller group (12) by means of several loops and which is connected directly or indirectly to the first roller group (11) or to the device body (10) by means of a first cord end piece (131) and which is led out of the closing device (1) by means of a second cord end piece (132). According to the invention, it is provided that the device body (10) comprises a holding rail (101) displaceably holding a roller carriage (14) comprising a carriage body (140), the roller carriage (14) being coupled to a first spring end piece (151) and being provided with a first mounting shaft (110) by which the first roller group (11) is rotatably supported, the device body (10) is integrally, force-fittingly or form-fittingly connected to a connecting device (18) which is connected or connectable to a drive body (20) of the drive unit (2A), and the connecting device (18) rotatably holds a deflection pulley (19) around which a tension spring (15) is guided by means of a bearing shaft (190).

Description

Technical Field

[0001] The present invention relates to a closing device for a sliding door assembly and a sliding door assembly, such as a sliding door assembly for a building or furniture component. Background Technology

[0002] Various closing mechanisms are known in the prior art, including those with a pull cord and a slender tension spring, by which a sliding door can be automatically moved from a first end position to a second end position. Such closing mechanisms typically have complex structures because, on the one hand, the pull cord must be guided around at least two cable pulleys, and on the other hand, the slender tension spring must be correspondingly positioned. Typically, parts of the device are mounted within a housing, which involves a considerable amount of effort.

[0003] For example, devices with sliding doors are known from US6052867A, US6418588B1, or US9341019B2, whereby the sliding door can move along a running track by means of a drive unit. US6052867A discloses a sliding door with a glass panel that can be connected to a drive unit guided in the running track by means of connecting fittings. These connecting fittings include mounting devices that insert into openings in the glass panel and are connected to the associated drive unit via threaded rods. US6418588B1 discloses a sliding door with a wooden panel that can be connected to a drive unit by means of connecting fittings. Each of these connecting fittings includes a mounting portion that is mounted on the upper side of the sliding door and connected to the associated drive unit via threaded rods. US9341019B2 discloses a sliding door with a wooden panel that can be connected to a drive unit by means of connecting fittings. These connecting fittings include mounting devices mounted in mounting grooves on the upper side of the sliding door.

[0004] EP0417822A1 discloses a device for a sliding door that can be vertically moved.

[0005] CA2096671A1 discloses an automatic closing device comprising a housing, a pull rope, a tension spring in the form of a helical spring, a first set of rollers that is movable and held in place, and a second set of rollers that is held stationary. The first set of rollers, movable and held in place, is connected to the tension spring on one side and to the pull rope on the other, which is guided by multiple loops around the two roller sets and exits from the housing. The two roller sets are displaced relative to each other by a distance, causing the pull rope to be guided out of the housing by an extension length corresponding to twice the distance of the mutual displacement of the roller sets multiplied by the number of loops. During this process, the tension spring, which is connected to the first set of rollers that is slidably held in place on one side and to the housing on the other side via an adjusting device, is stretched by this distance. The tension spring and the two roller sets are arranged axially, one after the other, which is why this arrangement occupies a relatively large amount of space and has a relatively short extension length. The extension length can be increased depending on the number of loops and the tension spring having a shorter spring stroke and a higher spring constant. Using additional loops increases the number and size of the cable pulleys in the pulley system. Springs with higher spring constants also have larger sizes and poorer performance. In general, the increased size of the closure device makes the installation of the locking device in the running rail problematic, or necessitates an increase in the cross-section of the running rail.

[0006] EP3095351A1 discloses a closing device for a movable furniture section having a movably mounted carriage, comprising a tension spring, a pull cord, and an actuation mechanism. The tension spring can be locked in a stretched state by the actuation mechanism and can be released after the carriage has moved to the release position, causing the furniture section to be automatically pulled into the end position by means of the closing device. Therefore, this closing device is not suitable for guiding a sliding door beyond a greater distance from one end position to another.

[0007] WO2020030385A1 discloses a closing device having a tension spring in the form of a helical spring and a pull rope, which is guided by several loops around a movable first set of rollers and a stationary second set of rollers, and further guided to the outlet of the closing device. The tension spring and roller sets are again arranged axially one after another, which is why the closing device must again be relatively large so that the pull rope can be pulled out a greater length from the closing device. Another disadvantage is that parts of the device, particularly the stationary roller set, must be mounted in a housing, which involves considerable effort.

[0008] This type of closing mechanism also generates noise when sliding doors move, which is undesirable in apartments, commercial buildings, or hotels.

[0009] EP2090732A2 discloses a brake fitting with a conduit for a flap that is pivotally held by the furniture body, and therefore not for a device with a sliding door that is to be automatically guided from one door stop to another. The brake fitting includes a cable attached to the flap via one end piece, guided only around a deflector wheel, and connected to the conduit via another end piece. A slider is slidably mounted in the conduit, which holds the deflector wheel and is connected to a spring cable. The spring cable is securely held at the first end piece, guided around a sleeve, and connected to the slider via a second end piece. Instead of two sets of pulleys, the device therefore includes only a single deflector wheel. The device thus has the potential to brake the rotation of the flap, but cannot drive the sliding door. The sleeve around which the spring cable is guided is kept rotatable by means of an axis inserted into a longitudinal groove in the conduit. Therefore, the assembly of the device is relatively complex. Even the installation of the sleeve inside the conduit requires skill. Subsequently, the spring cable must be inserted into the conduit and guided around the sleeve, which may require special tools. Therefore, the device of EP2090732A2 is not suitable for driving sliding doors, and although the number of device parts is reduced, it can only be assembled with relatively great effort. Summary of the Invention

[0010] Therefore, the present invention is based on the objective of providing an improved closing device for a sliding door assembly and an improved sliding door assembly for a building or furniture equipped with such a closing device.

[0011] The design of the closure device should be simple, and its manufacture and assembly should be effortless. Connecting or assembly methods, such as screws, can be omitted, thus eliminating the need to reduce material costs and assembly work associated with these methods.

[0012] The closing mechanism should allow for both size reduction and performance improvement. Despite the size reduction, the pull cord should be able to be pulled out of the closing mechanism with a relatively large or increased extension length, allowing sliding doors, such as wardrobe doors, to move a greater distance and then automatically pull back.

[0013] It should be possible to select tension springs with physical properties that optimize the performance of the closure. The tension springs should have the smallest possible diameter so that the closure can be designed to be as thin as possible.

[0014] The closing mechanism should operate forcefully, but with minimal wear and noise.

[0015] The device features a sliding door that, when released, is automatically pulled back to its starting position by means of a closing mechanism. For small-sized closing mechanisms, the sliding door should be able to be installed in a conventional manner without any special modifications. The closing mechanism should be able to be installed within a running track with a reduced cross-section.

[0016] Any sliding door assembly with an automatically driven sliding door should be advantageously achievable through the use of a closing mechanism. The sliding door assembly should allow the sliding door to move automatically over a considerable range from one end stop to the other, particularly between open or closed end positions in one or the other direction. Disruptive noise or sudden stops should be avoided.

[0017] This problem is solved by the closing device according to claim 1 and the sliding door device according to claim 13, the sliding door device being equipped with at least one such closing device. Advantageous embodiments of the invention are described in detail in the further claims.

[0018] A closing device is provided for a sliding door assembly having at least one sliding door, comprising an assembly body, a first set of rollers that is movable, a second set of rollers that is kept stationary by the assembly body, a tension spring that is directly or indirectly connected to the first set of rollers via a first spring end and directly or indirectly connected to the second set of rollers via a second spring end, and a pull cord that is guided around the first set of rollers and the second set of rollers by several loops, and the pull cord is directly or indirectly connected to the first set of rollers or the assembly body via a first cord end, and the pull cord is led out from the closing device via a second cord end.

[0019] The first roller group has several first cable pulleys, which are preferably abutted against each other and kept coaxially aligned with each other by a first mounting shaft. The second roller group has several second cable pulleys, which are preferably abutted against each other and kept coaxially aligned with each other by a second mounting shaft.

[0020] Each cable pulley preferably has a circumferential groove in which the pull rope is partially received and guided.

[0021] Preferably, the cable pulleys can rotate independently of each other. Therefore, the cable pulleys are preferably installed individually and preferably equipped with high-quality sliding bearings or ball bearings. The use of high-quality bearings, especially ball bearings, largely eliminates frictional loss and signs of wear. Therefore, even after prolonged operation, the pull rope can always be pulled out of the closing device with the same tension. Preferably, self-lubricating sliding bearings or self-lubricating ball bearings are used, enabling maintenance-free operation of the closing device.

[0022] According to the present invention, a device body is provided including a retaining rail that displaceably retains a roller carriage including a carriage body, the roller carriage being coupled to a first spring end member and provided with a first mounting shaft, a first roller group being rotatably supported by the first mounting shaft, the device body being integrally, force-fittingly, or form-fittingly connected to a connecting device, the connecting device being connected to or potentially connected to a drive body of a drive unit, and the connecting device rotatably retaining a deflection pulley by means of a support shaft, a tension spring being guided around the deflection pulley.

[0023] In the relaxed state, the tension spring can extend along the entire length of the closing device on one side of the deflecting pulley, and can also be stretched to a length on the other side of the deflecting pulley, which at least approximately corresponds to the entire length of the closing device. Therefore, the physical properties of the tension spring can be chosen almost arbitrarily, allowing the closing device to be designed as needed and providing advantageous performance. If a low spring constant is available, the tension spring can be implemented in a smaller size, especially a smaller diameter, which is why the closing device can also be implemented in a smaller width.

[0024] If the tension spring is guided around the deflection pulley, such that the spring ends are placed vertically on top of each other, this does not cause the closing device to widen. Because the diameter of the tension spring is small, the width of the closing device is not determined by the tension spring. Therefore, the closing device can be implemented with a reduced width, such that it is preferably sized so that it can typically be inserted into the sliding door from below through a longitudinal slot in the running rail, through which the drive unit is connected to the sliding door. Alternatively, the closing device is connected to the associated drive unit and inserted into the end face of the running rail at the rail end member.

[0025] By extending the spring travel, the size of the closing device can also be significantly reduced in the axial direction parallel to the running rail, while still leaving a long working path that allows sliding doors far from the door opening to be pulled in front of the door opening and allows the door opening to be fully opened or closed.

[0026] Preferably, the tension springs are guided around the deflection pulleys such that their ends are parallel to each other and point in the same direction.

[0027] Because the tension spring can stretch along the entire length of the closing device, the first roller group can also move that length. This is why even with a small-sized closing device, a larger working path, i.e. a larger door opening and a wider door, can be operated.

[0028] The tension spring is preferably helical and / or substantially polygonal or cylindrical. Preferably, the tension spring is made of metal, plastic, or rubber, or a combination thereof, such as a combination of rubber and plastic. The tension spring is preferably made of rubber, particularly soft rubber, latex, natural rubber, or an elastomer. Preferably, the tension spring or its core is formed from multiple bundles of rubber filaments, particularly soft rubber, latex, natural rubber, or an elastomer.

[0029] Preferably, the tension spring is surrounded by a sheath, which is made of metal and / or rubber and / or plastic and forms the spring core. The sheath is manufactured such that the elongation characteristics, particularly the spring constant, do not change or only change as needed. Thus, the sheath can contribute to the elasticity of the tension spring, or simply serve as a protective element that protects the tension spring from external influences, particularly from increased wear.

[0030] The sheath is securely or loosely connected to a metal and / or rubber and / or plastic spring core, and preferably has good inward and / or outward sliding properties.

[0031] Preferably, especially if the sheath is securely attached to the spring core, the sheath is a stretchable coating or a stretchable mesh.

[0032] The sheath is preferably made of rubber or plastic, or woven from multiple filaments composed of rubber or plastic. The filaments are made of, for example, polypropylene or polyester.

[0033] The sheath protects the closed spring core from external influences, while also protecting the deflecting pulley from undesirable effects from the tension spring (e.g., if it is a metal coil spring). For example, the coil of the tension spring is also stretched when it comes into contact with the deflecting pulley, and the sheath prevents the coil of the tension spring from mechanically stressing the deflecting pulley and damaging it over a longer period of time.

[0034] Tension springs made of rubber or elastomers have high elasticity and high tensile strength, are non-corrosive, and produce almost no noise when in operation.

[0035] The closure device can have a one-piece or modular design, which retains a roller carriage with a first roller group, a second roller group, and a deflecting pulley. The device body can be manufactured particularly easily when a modular design with at least two modules is provided.

[0036] In a preferred embodiment, the device body includes a connecting body that can be connected to a first end piece of the retaining rail and forms a structural element of the connecting device; and / or the device body includes a terminal body that can be connected to a second end piece of the retaining rail and is provided with a second mounting shaft through which a second roller group is rotatably held.

[0037] Therefore, the retaining rail, together with the connecting body and / or the terminal body, forms a modular device body that retains the moving part of the closure device. The connecting body or the terminal body may also be integrally connected to the retaining rail. However, preferably, the connecting body and the terminal body can be connected to and disconnected from the retaining rail.

[0038] Preferably, the connecting body and the terminal body can be form-fitted into the retaining rail and held in the retaining rail with no or at least nearly no clearance relative to the longitudinal axis of the retaining rail. The connecting body and the terminal body can thus be easily secured by applying force in the direction of the retaining rail.

[0039] In a preferred embodiment, a retaining rail is provided having one or more guide rails along which the roller carriage is movably mounted. In a preferred embodiment, these guide rails are also used for mounting the connecting body and / or the terminal body.

[0040] Preferably, the retaining rail includes two corresponding guide rails on the outer and / or inner sides, which ensures that the roller carriage and the connecting body and / or the terminal body are held on both sides.

[0041] In order to connect with the guide rail, the carriage body has one or more guide elements, each of which is held by an associated guide rail.

[0042] The connecting body has one or more first support elements, each of which is held by an associated guide rail.

[0043] The terminal body has one or more second support elements, each of which is held by an associated guide rail.

[0044] The guide elements of the roller carriage, as well as the first support element connecting the main body and the second support element of the terminal body, are preferably designed as slides, cams, grooves, or rollers, such that they can be held in a form-fitting manner by complementary guide tracks, such as grooves, channels, or ribs. Preferably, at least the guide elements of the roller carriage are designed as rollers capable of frictionless operation in the relevant guide tracks.

[0045] In a preferred embodiment, a connecting device is provided that is held against a first end piece of the retaining rail by a tension spring and is held at the first end piece of the retaining rail together with the connecting body, and / or a terminal body is held against a second end piece of the retaining rail by a tension spring and is held at the second end piece of the retaining rail. Since both the connecting device and the terminal body, including the connecting body, are connected to the tension spring, and the tension spring is preferably always held in a stretched state, the tension spring serves on the one hand to connect the connecting device to the connecting body, and on the other hand to connect the support device to the retaining rail. When the closing device is installed, the first end piece of the tension spring is connected to the roller carriage before being inserted into the retaining rail. Therefore, the connecting body and the terminal body are secured by connecting a second spring end piece to a second connecting device, which is connected to the terminal body. Thus, the connecting device is held against a first end piece of the retaining rail by a tension spring and is held at the first end piece of the retaining rail together with the connecting body, and / or the terminal body is held against a second end piece of the retaining rail by a tension spring and is held at the second end piece of the retaining rail.

[0046] In another preferred embodiment, a first spring end member is provided to include a first connecting portion, which is integral part of the first spring end member or connected to the first spring end member and connected to a first connecting device, the first connecting device being fixedly or slidably connected to a first roller group, and / or a second spring end member includes a second connecting portion, which is integral part of the second spring end member or connected to the second spring end member and connected to a second connecting device, the second connecting device being fixedly or slidably connected to the device body.

[0047] The first and / or second connecting devices are preferably designed as tensioning devices and are, for example, repositionable and can optionally be positioned along the ridge region, for example, using adjusting screws, in order to set the desired spring preload.

[0048] The first and / or second connecting devices may also be provided with multiple locking elements arranged in a straight line, and associated spring end pieces may optionally be hooked into these locking elements.

[0049] Preferably, the tension spring is pre-stretched by selecting a distance shorter than the distance between the connecting devices. Therefore, during assembly, the tension spring can be stretched and pre-stretched to this distance.

[0050] Alternatively, the first and / or second connecting portions may also be adjustable. For example, the first and / or second connecting portions may be rotatably connected to an associated spring end member and provided with external threads, allowing them to be screwed into, for example, threads in the device body or threads in a device portion connected to the device body. Preferably, for actuation of the first or second connecting portion, it is provided with an engagement element that can be form-fitted to a manually actuable tool.

[0051] The device body includes at least a retaining rail, with a roller carriage having a carriage body movablely held on the retaining rail, wherein the carriage body is coupled to a first spring end member and provided with a mounting shaft, and a first roller assembly is rotatably held on the mounting shaft. The retaining rail and the roller carriage movable along the retaining rail result in a stable structure for the closing device. Furthermore, this results in a smooth and controlled sequence of movements when the closing device is actuated. There are also advantages when assembling the closing device, especially when inserting or inserting a pull rope. The controlled guidance of the sliding cable pulley prevents lateral movement that could cause noise.

[0052] The main body of the device can be made of metal or plastic. The carriage body can also be made of metal or plastic. The pull rope is also made of metal or plastic, and preferably has a woven fabric made of metal and / or plastic.

[0053] The retaining rail preferably includes an upper side and a lower side, and the roller carriage can be moved along the upper side. The deflecting pulley is preferably held at one end of the retaining rail by means of a support shaft, which is preferably held at both sides by a shaft support connected to or integrated into the device body.

[0054] Preferably, the first spring end is guided from the deflection pulley located on the upper side of the retaining rail to the roller carriage. The second spring end is preferably guided from the deflection pulley on the lower side of the retaining rail to the second coupling device, which is fixedly or slidably connected to the device body.

[0055] The carriage body is preferably connected to the first coupling device in a fixed or movable manner, and optionally as an integral part.

[0056] Preferably, the carriage body is provided with at least one guide element in the form of a sliding track, which is held in a form-fitting manner by a retaining rail. Preferably, the carriage body has two spaced-apart sliding tracks, which are held in a form-fitting manner in the guide rail on both sides. For example, the guide rail is designed as a retaining channel. One or more carriage tracks may also be form-fitted into one or more retaining channels in the retaining rail. For example, the retaining rail may have a retaining channel with an inclined side corresponding to an inclined side of the carriage body. Therefore, the carriage body can also advantageously be inserted into the retaining channel.

[0057] Preferably, the retaining rail has a track inlet into which one or more carriage tracks can be inserted. The track inlet can preferably be closed with locking screws so that the roller carriage can no longer disengage from the retaining rail on its own.

[0058] The retaining rail can also be equipped with mounting grids, and stop elements can be inserted into the mounting grids as needed to limit the travel of the roller carriage.

[0059] The retaining rail can be designed in different ways. For example, it is provided that the retaining rail is plate-shaped and has an upper side and a lower side, and a first spring end is guided from the deflecting pulley on the upper side of the retaining rail to the roller carriage, and a second spring end is guided from the deflecting pulley on the lower side of the retaining rail to the second coupling device; or the retaining rail is formed in a C-shaped or U-shaped profile and has two sidewalls connected to each other by a central member, and in each case a guide rail is provided on the inner side of the sidewalls facing each other, and the first spring end is guided from the deflecting pulley into the retaining rail to the roller carriage, and the second spring end is guided from the deflecting pulley on the lower side of the retaining rail to the second coupling device.

[0060] Preferably, the retaining rail has the same cross-section along its entire length and can be easily manufactured using a forming process, such as compression molding or another extrusion process. Therefore, the retaining rail can be cut to any length.

[0061] Preferably, the damping device is disposed within the closing device, connecting the carriage body and the device body, such that the damping device impedes the return of the roller carriage. The damping device has, for example, a damping cylinder and a damping piston, the damping piston moving within the damping cylinder by means of a push rod.

[0062] When the push rod is connected to or can be connected to the roller carriage, for example, a damping cylinder is inserted into the device body. If the push rod is securely or permanently connected to the roller carriage or to the carriage body, damping occurs over the entire distance of the roller carriage's travel during automatic displacement, and therefore damping also occurs over the entire distance of the sliding door. However, typically, it is sufficient if the sliding door and / or roller carriage are damped in their movement before reaching the end position, and if the elements of the damping device (e.g., the push rod or damping cylinder) are contacted for this purpose. For example, pneumatic or hydraulic dampers or oil dampers can be used as damping devices.

[0063] The carriage body of the roller carriage can be connected to the associated drive unit in different ways. Preferably, the carriage body is integrally, press-fit, or form-fitted with a connecting device, which is connected or can be connected to the drive body of the drive unit in a form-fitting and / or press-fitting or integral manner, and the drive unit is movable in the running track.

[0064] The device body is preferably connected to a support wheel at the end away from the connected drive unit. The support wheel rolls on the running track and keeps the track device in a selected direction.

[0065] The first end of the pull rope can be connected to the device body or the roller carriage in any way. Preferably, the first end is connected to a movable first roller group, and optionally to the roller carriage, so that the pull rope can also be pulled out of the closing device by displacement of the movable first roller group or the roller carriage.

[0066] For example, the first rope end can be connected to the carriage body or the device body, or to the suspension device, by means of a screw. For this purpose, the first rope end is preferably provided with a connecting eyelet, a connecting ring, or a connecting loop. For example, the first rope end can thus be advantageously hooked onto a hook. The first rope end can also be inserted into a clamp and then clamped.

[0067] The second rope end piece already led out from the closing device can be connected in the same or another way to, for example, the running rail or to a device connected to the running rail, particularly a fixing device or a buffer device.

[0068] In a preferred embodiment, the pull rope with the second rope end is guided out of the closing device through the outlet opening, whereby the stationary second roller group is preferably arranged in the area of ​​the outlet opening, and the movable first roller group is arranged away from the outlet opening and can be moved toward the outlet opening. This ensures that the maximum length of the pull rope can be guided out of the closing device. A deflecting pulley is preferably arranged at the end of the closing device opposite to the outlet opening.

[0069] The closing device of the present invention can be used in any device with a sliding door, such as a sliding door system or multiple pieces of furniture, especially cabinets, to automatically move the sliding door to the end position.

[0070] Sliding doors are used, for example, to close room openings or wardrobe openings. The sliding door is connected at its upper side to a first drive unit and a second drive unit, which are slidably mounted in a running track. One of the drive units is preferably connected to a closing device, such that the closing device is held between the two drive units. The closing device of the present invention can be used, for example, in sliding door assemblies having a sliding door made of wood or glass, as disclosed in the aforementioned US6052867A, US6418588B1, or US9341019B2. The connection methods described therein make it possible to adjust the height of the sliding door.

[0071] The sliding door can be moved away from the opening and held in an end position by a fixing device, preferably releasable, and released again by applying force. The fixing device can be of any design and can have any locking element, such as at least one magnet or at least one clamp or hook.

[0072] The running track extends from the first track end member to the second track end member. Preferably, a first fixing device with a locking element is arranged at least in the first track end member, by means of which the sliding door can be releasably locked in the position where the tension spring is extended. In this case, the second rope end member of the pull rope is preferably directly or indirectly connected to the second track end member. Attached Figure Description

[0073] The invention will now be explained in more detail with reference to the accompanying drawings. It shows:

[0074] Figure 1The invention illustrates a sliding door device 100 with a sliding door 5. The sliding door 5 is connected at its upper side to two drive units 2A and 2B, which are displaceably mounted in a running rail 8. After being displaced to one side, these drive units can be connected to a first fixing device 9A, and after being displaced to the other side, they can be connected to a second fixing device 9B. The first drive unit 2A is connected to a closing device 1 of the invention. The closing device 1 includes a tension spring 15, a displaceably mounted first roller group 11, a stationary second roller group 12, and a pull rope 13. Using several loops, the pull rope 13 is guided around the first roller group 11 and the second roller group 12 and outwards (see...). Figure 3 );

[0075] Figure 2a It shows Figure 1 The upper part of the sliding door device 100 has a closing device 1, two retaining devices 9A and 9B and two drive units 2a and 2B, which are anchored in the mounting groove 50 at the upper edge of the sliding door 5 by means of mounting rails 3A and 3B.

[0076] Figure 2b It shows Figure 2a An enlarged view of the retaining device 9B, the closing device 1, and one of the two drive units 2A and 2B, each drive unit including a drive body 20 connected to a mounting body 22 via a connecting element 21, the mounting body 22 being movable and lockably held in an associated mounting rail 3A or 3B.

[0077] Figure 3 The preferred embodiment is shown. Figure 1 The closing device 1 has a device body 10, which includes a retaining rail 101 through which a roller carriage 14 is displaceably held; a tension spring 15 connected to the roller carriage 14 by a first spring end 151 and connected to the device body 10 by a second spring end 152; a displaceable first roller assembly 11, which is rotatably and displaceably held by the roller carriage 14 by means of a first mounting shaft 110; a stationary second roller assembly 12, which is rotatably but non-displaceably held by the device body 10 by means of a second mounting shaft 120; and a pull rope 13, which is guided around the first roller assembly 11 and the second roller assembly 12 by several loops, and is connected to the roller carriage 14 or the device body 10 by a first rope end 131 and led out from the closing device 1 by a second rope end 132.

[0078] Figure 4a It shows Figure 3 A part of the closing device 1, which has a tension spring 1, which is guided by a deflection wheel 19 and connected to the first connecting device 142 of the roller carriage 14 via a first spring end piece 151;

[0079] Figure 4b It shows Figure 4a A portion of the closing device 1, wherein the roller carriage 14 is displaced against the stationary second roller group 12, and optionally a damping device 17 is provided, which is connected to the device body 10 or the carriage body 140 or to both the device body 10 and the carriage body 140.

[0080] Figure 5a It shows Figure 3 The closing device 1 has a device body 10, which has a deflecting pulley 19, a roller carriage 14, and a tension spring 15, which has been removed from the device body 10 and the roller carriage 14, and the tension spring preferably has a circular or polygonal cross-section.

[0081] Figure 5b It shows Figure 5a The device body 10 and the roller carriage 14 removed therefrom, the roller carriage 14 has been rotated 180°, and has a viewing angle for observing the first connecting device 142 and the carriage slide 141;

[0082] Figure 6 It shows Figure 3 A closing device 1 having a device body 10, the device body 10 having a connecting device 18, the connecting device 18 being connected or connectable to the drive body 20 of the associated drive unit 2A in a form-fitting and / or force-fitting or integral manner.

[0083] Figure 7 An alternative preferred embodiment is shown. Figure 1 The closing device 1 of the present invention has a modular device body 10, which includes a retaining rail 101, a connecting body 102 of a connecting device 18 inserted into the retaining rail 101 on one side and a terminal body 103 of a retaining second roller group 12 inserted into the retaining rail 101 on the other side, and has an installed tension spring 15 that pulls the connecting body 102 and the terminal body 103 against and fixes them to the retaining rail 101;

[0084] Figure 8 It shows Figure 7 The closure device 1 in the assembly process is completed in a few simple steps;

[0085] Figure 9a A connecting device 18 having a connecting body 102 and a deflecting pulley 19 detached from the connecting body 102 are shown;

[0086] Figure 9b Shown from the other side Figure 9a The connecting body 18 has a connecting element 181, through which the closing device 1 can be connected to according to... Figure 1The drive unit 2A; and

[0087] Figure 9c A terminal body 103 is shown, which carries a second roller group 12. The terminal body 103 preferably holds a support wheel 199, which can... Figure 1 It rolls in track 8. Detailed Implementation

[0088] Figure 1 A sliding door device 100 of the present invention with a sliding door 5 is shown. The sliding door 5 is connected at its upper side to a first drive unit 2A and a second drive unit 2B, which are displaceably mounted in an operating rail 8. The length of the operating rail 8, partially shown in dashed lines, allows the door opening or room opening to be fully opened or closed. The operating rail 8 includes a first rail end member 81 and a second rail end member 82, a first fixing device 9A preferably disposed in the first rail end member 81, and a second fixing device 9B preferably disposed in the second rail end member 82. The two fixing devices 9A, 9B are positioned such that, at the respective open or closed end positions of the sliding door 5, they can cooperate with the associated drive unit 2A or 2B, and preferably brake the drive unit using at least one damping device 91, and / or preferably hold the drive unit in a force-locked and releasable end position using at least one locking element 92.

[0089] Drive units 2A and 2B are connected to the sliding door via mounting rails 3A and 3B, which are held in mounting grooves 50 on the upper side of the sliding door 5. However, drive units 2A and 2B can also be connected to the sliding door 5 in any other manner, as described above with reference to the prior art.

[0090] On the side facing the second drive unit 2B, the first drive unit 2A is connected to the closing device 1, by means of which the sliding door 5 can always move automatically toward the optionally provided second fixing device 9B in the closing direction. When it reaches the second fixing device 9B or is in the closed end position, the second drive unit 2B is held in place in a force-locked but releasable manner by means of the locking element 92 of the second fixing device 9B. Alternatively, it is also possible that the sliding door 5 is held in this end position by means of the closing device 1. The dashed line shows that the closing device 1 is provided with a pull rope 13, which is connected to the second fixing device 9B or the second rail end piece 82 of the running rail 8. When the sliding door 5 is opened, the pull rope 13 is pulled out of the closing device 1, and the tension spring 15 connected thereto is stretched.

[0091] The sliding door 5 can be manually gripped at the handle 51, released from the second fixing device 9B, and pulled to the right in the direction of the first fixing device 9A. During this process, the tension spring in the closing device 1 is stretched. At the end position, after the sliding door 5 has been opened, it is held in a force-locked but releasable manner by the locking element 92 of the first fixing device 9A and the first drive unit 2A. The tension spring 15 of the closing device 1 is loaded in this position, and after the sliding door 5 is manually released from the first fixing device 9A, the tension spring 15 can automatically move the sliding door 5 to the left back to the closed position. During this process, the pull rope 13 is pulled back into the closing device 1.

[0092] The fixing devices 9A and 9B can also be implemented in other ways, such as by magnets or locks disposed inside or outside the running rail 8. In a preferred embodiment, the locking device is disposed within the closing device 1 and is actuated by an actuating element when the end position is reached.

[0093] The closing device 1, which has a tension spring 15, is actuated by the user, for example by pulling a handle 51 or by actuating an electromechanical component.

[0094] Figure 2a It shows Figure 1 The upper portion of the sliding door assembly 100 has a closing device 1, two retaining devices 9A and 9B, and two drive units 2A and 2B, which are anchored in mounting grooves 50 at the upper edge of the sliding door 5 by means of mounting rails 3A and 3B. The wooden panel or sliding door 5 with the mounting grooves 50 can be connected to the drive units 2A and 2B, for example, by means of the connecting device disclosed in US9341019B2.

[0095] Each of the two drive units 2A and 2B has a drive body 20 that holds two rollers or roller pairs 29 and is connected to a mounting block 22 via a threaded rod 21. The mounting block 22 is slidably held and fixed in the associated mounting rails 3A and 3B.

[0096] Each of the two fixing devices 9A and 9B has a fixing body 90 and a locking element 92, which forms a flexible and flexible fixing arm that, once it reaches its end position, can engage and hold the facing roller 29 of the facing drive unit 2A or 2B. Optionally, the locking element 92 can also cooperate with the drive body 20.

[0097] The pull rope 13 is guided from the closing device 1 to the second fixing device 9B. The closing device 1 includes a device body 10, which optionally holds the support wheel 199 at the front and is provided with a force lock, shape lock or integrated connection device 18 at the rear. By means of the connection device 18, the closing device 1 is connected to the drive body 20 of the first drive unit 2A.

[0098] Figure 2b The second fixing device 9B, the closing device 1, the two drive units 2A and 2B, and the associated mounting rails 3A and 3B are shown, but the running rail 8 is not shown. The mounting body 22 is held in the mounting rails 3A and 3B, which are fixed by means of locking screws 221 and connected to the drive body 20 of the associated drive units 2A and 2B by means of connecting parts, threaded rods, or connecting screws 21.

[0099] Figure 3 A preferred embodiment is shown. Figure 1 The closing device 1 includes a device body 10, a movable first roller group 11 having four coaxially aligned first cable pulleys 111, 112, 113, 114 held by a first mounting shaft 110; a second roller group 12 having three coaxially aligned second cable pulleys 121, 122, 123 held by a second mounting shaft 120; and a tension spring 15 guided around a deflection pulley 19 (symbolically shown) and The device is connected to the first roller group 11 via the first spring end piece 151 and to the device body 10 via the second spring end piece 152; and a pull rope 13 is guided around the first cable pulleys 111, 112, 113, 114 of the first roller group 11 and the second cable pulleys 121, 122, 123 of the second roller group 12, and is directly or indirectly connected to the first roller group 11 or the device body 10 via the first rope end piece 131, and is guided out of the device body 10 via the outlet opening 106 via the second rope end piece 132.

[0100] The device body 10 may have one or more parts and be made of metal and / or plastic. The portion of the device body 10 including the retaining rail 101 may advantageously be made of plastic or metal during the extrusion process. The closing device, by means of the sidewall 108, may be a housing or a cover, shape-locked to cover or close. The retaining rail 101 is plate-shaped and has guide rails 1011 on each side.

[0101] The device body 10 has a connecting device 18 on its rear end member, which is form-fitted and / or force-fitted or integrally connected to or connectable to the drive body 20 of the associated drive unit 2A. The connecting device 18 is integrally connected to, or press-fitted to and / or form-fitted to, the device body 10, and optionally screw-on. At the front end member, the device body 10 has a shaft support 109, through which a wheel axle 1990 is held, and a support wheel 199 optionally provided by the wheel axle 1990 is rotatably mounted. At the front end, the device body 10 holds a second mounting shaft 120 and a stationary second roller group 12.

[0102] The tension spring 15 is preferably made of rubber, plastic, or metal, or a braided fabric of rubber, plastic, or metal, and is preferably provided with a sheath 155, such as a braided fabric of plastic wire (see...). Figure 5a The preferred materials used to manufacture the tension spring 15 and the sheath 155 are as described above.

[0103] In this preferred embodiment, the device body 10 includes a retaining rail 101 on which the roller carriage 14 is displaceably held. The roller carriage 14 has a carriage body 140, on which a first mounting shaft 110 and a first roller assembly 11 are held. The carriage body 140 also holds or includes a first coupling device 142 that forms-fits and / or forces-fits a first spring end member 151. On the underside, the carriage body 140 has guide elements 141 in the form of slide rails on both sides, which form-fits around the guide rail 1011 of the retaining rail 101, the retaining rail 101 having at least an approximately T-shaped profile. The roller carriage 14 with the first roller assembly 11 is movable over almost the entire length of the track body 101 until it comes to rest on a second roller assembly 12.

[0104] The retaining rail 101 has a rail inlet 1010, which allows the roller carriage 14 or guide element or slide 141 to be form-fitted to the retaining rail 101. The rail inlet 1010 is closed by a locking screw 1019, so that the roller carriage 14 cannot automatically disengage from the retaining rail 101.

[0105] When the sliding door 5 opens, the pull cord 13 is pulled out of the closing device 1, causing the roller carriage 14 with the first roller group 11 to be pulled against the second roller group 12. During this movement, the length of the loop around the two roller groups 11, 12 is shortened, which is why the pull cord 13 is released accordingly. Simultaneously, the tension spring 15 is pulled around the deflection pulley 19 and stretched to its maximum length and charged, and this energy is released once the sliding door 5 is released from its end position. The roller carriage 14 is pulled back into the other end position by the tension spring 15, thereby the pull cord 13 is reinserted into the closing device 1, and the sliding door 5 automatically moves back to the closed position.

[0106] Figure 3 An example of a first rope end piece 131 is also shown, which is guided to a threaded hole 107 in the device body 10 or a threaded hole 147 in the carriage body 140 and secured there by means of a mounting screw 7. Figure 6The device body 10 or carriage body 140 can also be equipped with cable connection devices 105 or 145 of different designs. For example, a first rope end piece 131 can be hooked into the connection device 105 or 145. The cable connection device 105 or 145 is, for example, a hook, clip, or clamp. Preferably, the first rope end piece 131 is connected to the roller carriage 14, so that the pull rope 13 can also be pulled out of the closing device 1 by the displacement of the roller carriage 14.

[0107] Figure 4a It shows Figure 3 A portion of the closing device 1 with a tension spring 15 is shown, which is guided around a deflecting pulley 19 and connected to a first connecting device 142 of the roller carriage 14 via a first spring end member 151. The spring end members 151 and 152 are shown to have connecting portions 1510 and 1520, which can be form-fitted to the first connecting device 142 of the connecting carriage 14 and to a second connecting device 16 of the device body 10 (see [link]). Figure 5a ).

[0108] Figure 4b It shows Figure 4a Part of the closing device 1, wherein the roller carriage 14 is displaced against the stationary second roller group 12. The tension spring 15 is partially stretched, and the pull rope 13 has been partially pulled out of the closing device 1.

[0109] The larger and smaller double-headed arrows indicate an optional damping device 17 that inhibits movement of the roller carriage 14 when it returns. The longer double-headed arrow indicates that movement of the roller carriage 14 can be inhibited over the entire return path. The smaller double-headed arrow indicates that movement of the roller carriage 14 can also be inhibited only over a portion of the return path. A damping device 17, removed from one of the retaining devices 9A, 9B, is also shown, and has a damping cylinder 171 and a push rod 172 by means of which a damping piston can be displaced within the damping cylinder 171. The damping piston is surrounded by a layer of oil, for example, or for venting air from the damping cylinder 171. Typically, this type of damping device 17 includes a return spring by means of which the damping piston returns to the initial position and the push rod 172 is pushed outward. For example, as... Figure 2a As shown, for retaining devices 9A and 9B, damping device 17 is inserted into a hole in carriage body 140 or device body 10, such that push rod 172 or damping cylinder 171, which preferably has an elastic element at the front, aligns with a portion of roller carriage 14 or abutting device body 10, and can engage with the latter before sliding door 5 or roller carriage 14 reaches the end position.

[0110] Figure 5a It shows Figure 3The closing device 1 has a device body 10 with a deflecting pulley 19, a roller carriage 14, and a tension spring 15, which has been released from the device body 10 and the roller carriage 14. In this configuration, the optional support wheel 199 has been removed. Therefore, the second connecting device 16 is visible, allowing the connecting member 1520 of the second spring end member 152 to be hooked in. In a preferred embodiment, the second connecting device 16 is adjustable by means of an adjusting screw 161 and can be displaced parallel to the retaining rail 101, which has an upper side 101T and a lower side 101B.

[0111] After assembly, the tension spring 15 is guided around the deflection pulley 19 such that the first spring end 151 extends along the upper side 101T of the retaining rail 101, and the second spring end 152 extends along the lower side 101B of the retaining rail 101. The two spring ends 151 and 152 are preferably aligned parallel to each other. The first spring end 151 is connected to the first connecting device 142 of the roller carriage 14 via a first connecting portion 1510. The second spring end 152 is connected to the second connecting portion 1520 via a preferably adjustable second connecting device 16. A tension spring 15, preferably made of rubber, is shown, which preferably has a sheath 155, preferably constructed of a woven fabric of rubber or plastic fibers.

[0112] Figure 5b It shows Figure 5a The device body 10 and the removed roller carriage 14, the roller carriage 14 having been rotated 180° together with the first connecting device 142, the first connecting device 142 being configured for a shape-locking connection for the first end piece 151 of the tension spring 15.

[0113] Figure 6 It shows Figure 3 The closing device 1 has a device body 10 and a connecting device 18, which is form-fitted and / or force-fitted or integrally connected to or can be connected to the drive body 20 of the associated drive unit 2A.

[0114] Figure 7 A closure device 1 of the present invention in another preferred embodiment is shown, having a modular device body 10 comprising a retaining rail 101, a connecting body 102 forming a device body of a connecting device 18, and a terminal body 103 retaining a second roller assembly 12. The connecting body 102 is inserted into one side of the retaining rail 101, and the terminal body 103 is inserted into the other side of the retaining rail 101 and is detachably retained. The connecting body 102 and / or the terminal body 103 are form-fittedly displaceable into the retaining rail 101 and are preferably retained without clearance perpendicular to the longitudinal axis x of the closure device 1. The retaining rail 101, the connecting body 102, and / or the terminal body 103 are thus form-fittedly connected to each other to form the device body 10.

[0115] The tension spring 15 is connected to the first connecting device 142 of the roller carriage 14 via the first spring end piece 151, and is connected to the second connecting device 16 via the second spring end piece 152. The second connecting device 16 is preferably an integral part of the terminal body 103.

[0116] The tension spring 15 is stretched and pulls the connecting body 102 and the terminal body 103 against the retaining rail 101, thereby bringing them against each other. The device body 10, consisting of the retaining rail 101, the connecting body 102, and the terminal body 103, is thus held together by the tension spring alone.

[0117] The retaining rail 101, preferably symmetrically designed and shown in a longitudinal section along the longitudinal axis x, preferably has a downwardly open U-shaped or C-shaped profile. The retaining rail has a central element 101X, which is abutted on both sides by sidewalls 101Y. A guide rail 1011, such as a retaining channel or retaining groove, is arranged inside the sidewall 101Y. The guide element 141 of the roller carriage 14 and the first support element 1021 connecting the body 102 and the second support element 1031 of the terminal body 103 are form-fitted into this guide rail. The guide element 141, the first support element 1021, and the second support element 1031 preferably have the same design. However, the guide element 141 may also be designed as a roller or made of a material with high sliding capacity, such as POM. In the illustrated embodiment, the carriage body 140 is provided with two cylindrical guide elements 141, the connecting body 102 is provided with two cylindrical first support elements 1021, and the terminal body 103 is provided with two cylindrical retaining elements 1031, which are spaced apart from each other and each extends into an associated channel-shaped guide rail 1011 in the side wall 101Y of the retaining rail 101. Figure 7 The connecting body 102 is also shown to have a connecting plate 1022, and the terminal body 103 has a terminal plate 1032, which allows the retaining rail 101 to terminate at both sides. Furthermore, a pull cord 13 is schematically shown, preferably as follows: Figure 3 It is installed as in the closing device 1. Figure 7 In the embodiment of the closing device 1, compared with the embodiment of FIG5, a cover is not required because the retaining rail 101 is closed on three sides.

[0118] Figure 8 The assembly process is shown. Figure 7 The closing device 1. The retaining rail 101 is shown shortened. The arrows indicate that the roller carriage 14, the connecting device 18 with the connecting body 102, and the terminal body 103 can be inserted into the retaining rail 101 in the same manner. The pull rope 13, not shown, is already assembled and can be inserted into the retaining rail 101 through the lower opening.

[0119] The tension spring 15 has passed through the connecting device 18 and is connected to the roller carriage 14, so that the closing device 1 can be assembled in a few simple steps. After inserting the roller carriage 14, the connecting device 18 and the terminal body 103, the second end piece 152 of the tension spring 15 protrudes downward and only needs to be stretched and connected to the second connecting device 16. Once the tension spring 15 is assembled, the assembly of the closing device 1 is complete.

[0120] Figure 9a A connecting device 18 is shown, which has a connecting body 102 and a deflecting pulley 19 detached from the connecting body 102 having a support shaft 190. The connecting body 102 is fork-shaped and has two legs, between which the deflecting pulley 19 can be mounted by means of the support shaft 190.

[0121] Figure 9b Shown from the other side Figure 9a The connecting body 18 has a connecting element 181, through which the closing device 1 can be connected to the connection body 18 according to the connection body 181. Figure 1 The drive unit 2A.

[0122] Figure 9c The diagram shows a terminal body 103 that carries the second roller group 12 and preferably holds a support wheel 199, which can... Figure 1 It rolls in track 8.

[0123] List of reference numerals:

[0124] 1 Closure device

[0125] 100 sliding door device, equipped with 5 sliding elements

[0126] 10Device body

[0127] 101 Keeping the Rail

[0128] 101B retaining rail underside

[0129] The upper side of the 101T retaining rail

[0130] 101X central component

[0131] 101Y sidewall

[0132] 1010 Track Entrance

[0133] 1011 guide rail

[0134] 1019 locking screw

[0135] 102 Connecting Body

[0136] 1021 First Support Element

[0137] 1022 connecting board

[0138] 103 terminal body

[0139] 1031 Second Support Element

[0140] 1032 terminal board

[0141] 105 Cable connection device at point 10 of the device body

[0142] 106 Exit Opening

[0143] 107 Threaded holes in the main body 10

[0144] 108 covers

[0145] 109 shaft support

[0146] 11 First Roller Group

[0147] 110 First mounting shaft

[0148] 111-114 First cable pulley

[0149] 12 Second Roller Group

[0150] 120 Second Mounting Shaft

[0151] 121–123 Second cable pulley

[0152] 13 pull ropes

[0153] 131 First rope end piece 13

[0154] 132 Second rope end piece 13

[0155] 14-roller carriage

[0156] 140 slide body

[0157] 141 guide element

[0158] 142 First connecting device

[0159] Cable connection device at position 14 of the 145 roller carriage

[0160] 147 Threaded holes in carriage body 140

[0161] 15 tension spring

[0162] 151 First Spring End Piece

[0163] 1510 First connecting portion at the first spring end piece 151

[0164] 152 Second spring end piece 15

[0165] 1520 Second connecting portion at the second spring end piece 152

[0166] 155 sheath

[0167] 16. The second connecting device at the 10th position of the device body

[0168] 161 Adjusting Screw

[0169] 17 Damping Device

[0170] 171 damping cylinder

[0171] 172 putter

[0172] 18 connecting devices

[0173] 181 Connecting Components

[0174] 19 deflecting pulleys

[0175] 190 support shaft

[0176] 199 support wheels

[0177] 1990 wheel axle

[0178] 2A and 2B drive units

[0179] 20 drive units

[0180] 21 Connecting parts, connecting shaft, connecting screws

[0181] 22 Install the main body

[0182] 221 locking screw

[0183] 3A and 3B mounting rails

[0184] 5. Sliding doors with movable components

[0185] 50 mounting slots

[0186] 51 door handles

[0187] 7 mounting screws

[0188] 8 running tracks

[0189] 81 First Track End Component

[0190] 82 Second Rail End Component

[0191] 9A, 9B Fixing Devices and Buffer Devices

[0192] 90 fixed body

[0193] 91 Stop Damping Device

[0194] 92 Locking Elements

Claims

1. A closing device (1) for a sliding door assembly (100) having at least one sliding door (5), comprising an assembly body (10), a first roller group (11) that is movable, a second roller group (12) that is held stationary by the assembly body (10), a tension spring (15) directly or indirectly connected to the first roller group (11) via a first spring end (151) and directly or indirectly connected to the second roller group (12) via a second spring end (152); and a pull rope (13) guided around the first roller group (11) and the second roller group (12) by means of several loops, and directly or indirectly connected to the first roller group (11) or the assembly body (10) by means of a first rope end (131), and extended from the closing device (1) by means of a second rope end (132), characterized in that, The device body (10) includes a retaining rail (101) that displaceably holds a roller carriage (14) including a carriage body (140). The roller carriage (14) is connected to the first spring end piece (151) and is provided with a first mounting shaft (110). The first roller assembly (11) is rotatably supported by the first mounting shaft. The device body (10) is integrally, force-fittedly, or form-fittedly connected to the connecting device (18), which is connected to or can be connected to the drive body (20) of the drive unit (2A), and The connecting device (18) rotatably holds the deflecting pulley (19) by means of a support shaft (190), and the tension spring (15) is guided around the deflecting pulley.

2. The closing device (1) according to claim 1, characterized in that, The tension spring (15) is helical or cylindrical and is made of metal, plastic or rubber, or the tension spring (15) is made of multiple bundles of rubber filaments, especially soft rubber, latex, natural rubber or elastomer.

3. The closing device (1) according to claim 1 or 2, characterized in that, The tension spring (15) is surrounded by a sheath (155).

4. The closing device (1) according to claim 3, characterized in that, The sheath (155) is a stretchable coating or a stretchable braid, wherein the sheath (155) is preferably made of rubber or plastic, or woven from filaments made of rubber or plastic.

5. The closing device (1) according to any one of claims 1-4, characterized in that, The device body (10) includes a connecting body (102) that can be connected to a first end piece (101A) of the retaining rail (101) and forms a structural element of the connecting device (18); or The device body (10) includes a terminal body (103), which is connectable to a second end piece (101B) of a retaining rail (101) and is provided with a second mounting shaft (120), through which a second roller assembly (12) is rotatably held; or The device body (10) includes a connecting body (102) which is connectable to a first end piece (101A) of a retaining rail (101) and forms a structural element of a connecting device (18). The device body (10) also includes a terminal body (103) which is connectable to a second end piece (101B) of a retaining rail (101) and is provided with a second mounting shaft (120). The second roller group (12) is rotatably held by the second mounting shaft.

6. The closing device (1) according to claim 5, characterized in that, The retaining rail (101) has one or more guide rails (1011) along which the roller carriage (14) is displaceably mounted. The carriage body (140) has one or more guide elements (141), which are held by one of the guide rails (1011); The connecting body (102) includes one or more first support elements (1021), which are held by one of the guide rails (1011); or The terminal body (103) includes one or more second support elements (1031), which are held by one of the guide rails (1011); or The connecting body (102) includes one or more first support elements (1021) held by one of the guide rails (1011), and the terminal body (103) includes one or more second support elements (1031) held by one of the guide rails (1011).

7. The closing device (1) according to any one of claims 1-6, characterized in that, The first spring end piece (151) has a first connecting portion (1510) held by a first connecting device (142), which is fixedly or relocatably connected to the carriage body (140) of the roller carriage (14), or The second spring end piece (152) includes a second connecting portion (1520) held by a second connecting device (16), which is fixedly or slidably connected to the device body (10), or The first spring end piece (151) has a first connecting portion (1510) held by a first connecting device (142) which is fixedly or movably connected to the carriage body (140) of the roller carriage (14), and the second spring end piece (152) includes a second connecting portion (1520) held by a second connecting device (16) which is fixedly or slidably connected to the device body (10).

8. The closing device (1) according to claim 6 or 7, characterized in that, The connecting device (18) is pulled by the tension spring (15) against the first end piece (101A) of the retaining rail (101), and is held together with the connecting body (102) at the first end piece (101A) of the retaining rail (101), or The terminal body (103) is pulled by the tension spring (15) against the second end piece (101B) of the retaining rail (101) and is held at the second end piece (101B) of the retaining rail (101), or The connecting device (18) is held against the first end piece (101A) of the retaining rail (101) by the tension spring (15) and is held together with the connecting body (102) at the first end piece (101A) of the retaining rail (101), and the terminal body (103) is held against the second end piece (101B) of the retaining rail (101) by the tension spring (15) and is held at the second end piece (101B) of the retaining rail (101).

9. The closing device (1) according to any one of claims 1-8, characterized in that, The retaining rail (101) is plate-shaped and has an upper side (101T) and a lower side (101B). A first spring end piece (151) is guided from a deflection pulley (19) on the upper side (101T) of the retaining rail (101) to a roller carriage (14), and a second spring end piece (152) is guided from a deflection pulley (19) on the lower side (101B) of the retaining rail (101) to a second connecting device (16); or The retaining rail (101) is formed in the shape of a C-shaped or U-shaped profile and has two side walls (101Y) connected to each other by a central member (101X). On the inner side of the side walls (101Y) facing each other, a guide rail (1011) is provided respectively. A first spring end member (151) is guided from the deflecting pulley (19) into the retaining rail (101) to the roller carriage (14), and a second spring end member (152) is guided from the deflecting pulley (19) on the underside of the retaining rail (101) to the second connecting device (16).

10. The closing device (1) according to any one of claims 7, 8 or 9, characterized in that, The carriage body (140) and the device body (10) are connected to each other by a damping device (17).

11. The closing device (1) according to any one of claims 1-10, characterized in that, The guide element (141) of the roller carriage (14) and the first support element (1021) connecting the body (102) and the second support element (1031) of the terminal body (103) are held in a shape-locked manner so that they can be displaced in or through the guide rail (1011) of the retaining rail (101). The guide element (141) of the roller carriage (14) and the first support element (1021) connecting the body (102) and the second support element (1031) of the terminal body (103) are preferably designed as a slide rail, cam, groove or roller.

12. The closing device (1) according to any one of claims 1-11, characterized in that, A pull rope (13) with a second rope end piece (132) is led out from the closing device (1) through an outlet opening (106), and a second roller group (12) is arranged in the area of ​​the outlet opening (106), while a first roller group (11) is arranged away from the outlet opening.

13. A sliding door device (100) having at least one sliding door (5) and a closing device (1) according to any one of claims 1-12.

14. The sliding door device (100) according to claim 13, characterized in that, The sliding door (5) is connected to the first drive unit (2A) and the second drive unit (2B) on the upper side. The first drive unit and the second drive unit are displaceably installed in the running rail (8), and one of the drive units (2A) is connected to the closing device (1). The pull rope (13) is led out from the closing device and connected directly or indirectly to the running rail (8) or the fixing device (9A, 9B) therein through the second rope end piece (132). The pull rope is held in the closing device (1) through the first rope end piece (131).

15. The sliding door device (100) according to claim 13 or 14, characterized in that, The running rail (8) extends from the first rail end member (81) to the second rail end member (82), and at least in the first rail end member (81) a first fixing device (9A) with a locking element (92) is arranged, by means of which the sliding door (5) can be releasably locked in the position where the tension spring (15) is stretched, and the second rail end member (132) is directly or indirectly connected to a guide rail member away from the first rail end member (81) or directly or indirectly connected to the second rail end member (82).

Images