Retracting device, manufacturing method, and sliding door device

Abstract

The insertion device (6), which has a longitudinal axis (y), is provided for a device (4) with a movable element (40) which is movable along a guide rail (3) to an end position and comprises a housing (1) which has a housing space (10) and at least one guide track (100) with a locking section (101), at least one coupling slide (61) which is movable along the at least one guide track (100) into the locking section (101), and a force device (62) which is connected on one side to the housing (1) and on the other side to the coupling slide (61).According to the invention, the housing (1) comprises a first housing part (11) and a second housing part (12) which is displaced into the first housing part (11) parallel to the longitudinal axis (y), and the two housing parts (11, 12) have corresponding walls or side walls (11S, 12S) which abut each other and are connected to each other in a fixed or detachable manner.

Description

[0001] The invention relates to a retraction device, in particular for sliding doors, a method for manufacturing the retraction device, and a sliding door device equipped with at least one such retraction device.

[0002] US9009918B2 discloses a retraction device for a sliding door device by means of which a sliding door can be automatically and dampened moved into an end position along a running rail.

[0003] Retracting devices of this type typically comprise a force device, such as a retraction spring or a retraction damper, and at least one coupling slide connected to the retraction damper and the force device. This coupling slide can be moved along a guide track into a locking section and can be coupled to an activation element held stationary by the track. When the sliding door is pulled out from its end position, the coupling slide is engaged by the activation element, guided along the guide track into the locking section, disengaged from the activation element, and held locked in the locking section. When the sliding door retracts towards its end position, the coupling slide is again engaged by the activation element and released from the locking section, thus releasing the force device and pulling the sliding door into its end position.The closing mechanism counteracts the closing action initiated by the power device, ensuring that the sliding door is guided in a controlled manner to its end position and that impact noises are avoided. A sliding door that can be moved between two end positions can also be equipped with two closing mechanisms, so that the sliding door can be automatically moved to the first end position by means of the first closing mechanism and automatically to the second end position by means of the second closing mechanism.

[0004] Also known are retraction devices with two coupling slides, which are usually arranged on opposite sides of the retraction spring or force device. A sliding door equipped with such a retraction device can be automatically pulled into its corresponding end position in both an open and a closed position.

[0005] Therefore, retraction devices must be adapted to the respective device, which is equipped with at least one movable element, such as a sliding door or a drawer. Various parameters must be taken into account, such as the weight of the movable elements, their dimensions, and the retraction behavior of the movable elements that the retraction device must achieve.

[0006] Furthermore, it should be noted that with sliding door systems, the track is usually selected according to the specifications of the sliding door system, particularly the weight of the sliding doors. Therefore, tracks of different dimensions and cross-sectional areas are typically used. The tracks of sliding door systems are usually equipped with auxiliary devices that are mounted within the track's cross-section. The tracks typically have at least one side wall, to which a head is attached at the top and a foot at the bottom. Often, tracks have two side walls, connected at the top by a head and featuring opposing foot pieces at the bottom, on which rollers or sliding elements of the track mechanism are mounted.The auxiliary devices, like the running gear with its wheels or sliding elements, are usually also mounted on the foot pieces of the guide rails and tightened by clamping screws that are turned against the head piece of the guide rail. Therefore, appropriately dimensioned auxiliary devices, such as feed devices, holding devices, buffer devices, drive devices, or other mechanical and electrical devices, must be provided for each rail cross-section.

[0007] Retraction devices are, as this Fig. 1 This shows that they are often equipped with support wheels that roll on the feet. Therefore, the feed devices, which are connected to a running gear, for example, must also be provided according to the dimensions of the guide rail.

[0008] Manufacturers therefore produce the loading devices with appropriately sized power units, appropriately sized loading dampers, and appropriately sized housings and support wheels, resulting in correspondingly high manufacturing costs. Furthermore, this leads to correspondingly high storage and administrative costs. Production equipment must be provided for the various housings. Consequently, different types of loading devices must be marketed and kept in stock in large quantities, requiring considerable effort.

[0009] The present invention therefore aims to provide an improved retraction device for a device, in particular a sliding door device, which has at least one movable element, such as a sliding door. Furthermore, a method for manufacturing this retraction device and a sliding door device equipped with such a retraction device are to be provided.

[0010] The retraction device should be able to be manufactured and provided with minimal effort for devices, especially sliding door devices, that have different specifications and configurations and different requirements for drive behavior.

[0011] The infeed device should preferably be equipped with device components that are used in conventional infeed devices. Device components that have been used for conventional infeed devices should preferably also be usable for infeed devices according to the invention.

[0012] The sliding door device according to the invention should advantageously be equipped with at least one retraction device according to the invention, with stationary activation elements for the at least one retraction device and with further devices, such as holding devices, buffer devices, drive devices and thus with mechanical and / or electrical devices of any type, which can be installed and adjusted with minimal assembly effort.

[0013] In particular, devices, especially sliding door devices, are to be provided that can be optionally equipped with movable elements, especially sliding doors, and guide rails with different physical properties, especially different geometric dimensions, different rail cross-sections, and different weights, without the need to individually provide auxiliary devices such as buffer devices, stop devices, activation elements, and, if applicable, conventional or inventive retraction devices. Therefore, arbitrarily configured sliding door devices should be able to be equipped with the same auxiliary devices. Auxiliary devices with specific performance characteristics should therefore not need to be provided with different dimensions, especially different mounting parts.The feed device should also be advantageously movable along guide rails that have different rail cross-sections, without requiring any adjustment of the support wheels.

[0014] The induction devices and other auxiliary devices according to the invention should be easy to assemble and preferably in the same way, so that the devices, in particular sliding door devices, can be installed quickly and advantageously maintained.

[0015] This problem is solved by a retraction device according to claim 1, a method for manufacturing the retraction device according to claim 12, and a sliding door device according to claim 13. Advantageous embodiments of the invention are specified in further claims.

[0016] The feed device, which has a longitudinal axis, is designed for a device with a movable element that can be moved along a guide rail to an end position and includes a housing comprising a housing space and at least one guide track with a locking section, at least one coupling slide which is displaceable along the at least one guide track into the locking section, and at least one force device which is connected on one side to the housing and on the other side to the coupling slide.

[0017] According to the invention, the housing comprises a first housing part and a second housing part which is shifted into the first housing part parallel to the longitudinal axis, and the two housing parts have corresponding walls or side walls which abut each other and are connected to each other in a fixed or detachable manner.

[0018] The force device is preferably a mechanical spring or a magnetic spring. A magnetic spring or magnetic force generator, as described, for example, in US 20040004405A1, preferably comprises a metal piston and a metal cylinder that interact magnetically. The piston and / or the cylinder is / are designed as a magnet. The piston is slidably mounted within the cylinder and is automatically drawn into the cylinder by magnetic force, thereby acting as a spring element. The mechanical spring is, for example, an elastic cord, a rubber cord, or the like, or a spring made of metal or plastic, such as a helical spring, which is extensible linearly or along a curve defined by at least one pulley.

[0019] In preferred embodiments, a closing damper is provided, which is connected to the housing on one side and to the coupling slide on the other. The closing damper allows the movement of the sliding door driven by the closing device to be dampened, so that the sliding door can be moved in a controlled manner into an end position.

[0020] The retraction device has one or two coupling slides connected to a common force device or retraction spring, or each to its own associated force device or retraction spring. A retraction device with two coupling slides allows the held sliding door to be automatically moved in one direction and the other towards an end position.

[0021] The housing design, with two telescopically sliding housing parts, allows for the mounting of a force device and / or a retraction damper. The choice of force device and / or retraction damper depends on the specific design of the device and the sliding element, which is to be moved into a final position with a predetermined movement pattern by the retraction device. The retraction damper typically comprises a damping piston, which is slidably held within a damping cylinder and connected to the coupling slide by a push rod. Movement of the coupling slide caused by the force device is therefore dampened by the retraction damper. The length of the travel path along which the sliding element is moved into its final position typically determines the length of the required force device. The damping of the sliding element should begin no later than shortly before it reaches its final position.

[0022] The telescopically designed housing can be functionally identical to conventional housings, so that all device parts of conventional feed devices can preferably also be used in feed devices according to the invention.

[0023] In the inventive retraction devices, the force device and / or the retraction damper can be selected depending on the dimensions and / or weight of a sliding door or sliding door system and the desired operating characteristics of the sliding door. For example, the sliding door should be gripped in the area of ​​the end position and moved quickly into the end position without hitting the end position at a speed that would cause disturbances, such as slamming noises. For a heavier sliding door or for more dynamic operating characteristics of the sliding door, a more powerful force device and a more powerful retraction damper are typically provided, which have correspondingly larger dimensions. For a smaller sliding door, a force device and a retraction damper with smaller dimensions are normally used.The damper for the intake mechanism can therefore vary in width and length, which is why it must be positioned and fixed in the housing space by appropriate measures and preferably adapted to the housing space.

[0024] According to the invention, the housing can be adapted to the force device and the retraction damper, and / or the retraction damper can be adapted to the housing space or the interior of the housing, by the housing parts can be moved against each other and connected as required, and / or at least one preferably provided stop module is inserted at a suitable location into a preferably provided mounting grid, and / or adapter modules are provided by means of which the retraction damper is adapted to the housing space.

[0025] The length of the housing is adjusted by mutual displacement and connection of the housing parts, preferably taking into account the length of the force device, which is connected to the housing at one end and to the slidably mounted and lockable coupling slide at the other end.

[0026] To adjust the position of the retraction damper, at least one stop module is provided, which is inserted into a mounting grid at a suitable position. The response module determines the distance between the front of the retraction damper and the coupling slide in the locked position.

[0027] The retraction damper can be secured within the housing by an additional stop module and / or adapter modules. An adapter module, positioned axially behind the retraction damper, allows the length of the damper or damping cylinder to be adjusted to the length of the housing. Sleeve-shaped adapter elements allow the diameter of the damper or damping cylinder to be adjusted to the diameter of the housing.

[0028] The method for manufacturing the inventive drawing-in device therefore essentially comprises the following process steps: Provision of the two housing parts which are telescopically slidable into one another; selection and provision of a force device according to the requirements of the device with the slidable element; selection and provision of a retraction damper according to the requirements of the device with the slidable element; displacement of the second housing part parallel to the longitudinal axis into the first housing part by a distance selected according to the dimensions of the force device and / or according to the dimensions of the retraction damper; joining the displaced housing parts by at least one screw connection and / or an adhesive connection and / or a welded connection and / or a snap-fit ​​connection; and installation of the device parts of the retraction device before or after joining the housing parts.

[0029] Optionally, before installing the fixture components, the preferably provided stop module is inserted into the mounting grid at the appropriate position. Preferably, the optional adapter modules are mounted and inserted.

[0030] The first housing part preferably comprises two parallel side walls connected by a housing base. The second housing part preferably comprises two parallel side walls connected by a housing base, each of which has a guide track.

[0031] The first and / or the second housing part therefore preferably have a U-profile or rectangular profile and are preferably designed such that the side walls and / or the housing bottoms fit together in a force-fit manner. The outer diameter of the second housing part is, for example, slightly larger than the inner diameter of the first housing part, so that the nested housing parts exert a force on each other.

[0032] The housing parts are joined together by force-fit, form-fit, and / or material-fit. For example, the first housing part and the second housing part are joined together by interlocking form elements in the form of snap-fit ​​elements, and / or by screw connections, and / or by adhesive, and / or by welding.

[0033] In preferred embodiments, the facing sides of the first and second housing parts are provided with shaped elements or grid elements that, prior to joining the housing parts, engage positively after each stepwise relative displacement of the first and second housing parts. The grid width or step size can be selected as required and is, for example, in the range of 0.5 mm to 3 mm. Complementary, telescopically displaceable housing parts can therefore be successively displaced into one another, positively coupled, and subsequently connected, welded, screwed, bonded, or snapped together. After joining the housing parts, this results in both positive-locking and material-locking or force-locking connections between the housing parts, which can withstand even very high loads.

[0034] The housing parts preferably have further shaped elements that face each other, abut each other, and are designed in such a way that the housing parts can only be displaced relative to each other along the longitudinal axis.

[0035] The material-bonded connection of the housing parts is preferably achieved by welding, particularly preferably by welding using a laser beam.

[0036] The process, which is intended for welding housing parts using a laser beam, comprises the following process steps: Provision of a laser device comprising at least one laser source serving to emit a laser beam, at least one guide device for moving the laser source and a control unit with a control program for controlling the guide device and preferably the laser source, and provision of the first housing part through which the laser beam can be guided from the top to the bottom, and of a second housing part onto which the first housing part is placed and which is welded to the first housing part under the influence of the laser beam.

[0037] According to the invention, the method comprises the following additional process steps: Providing the first housing part with at least one connecting opening having an opening axis and forming a collar with a collar wall extending from an upper collar line adjacent to the top to a lower collar line adjacent to the bottom of the first housing part, and welding the first plastic part to the second plastic part by directing the laser beam onto a working area of ​​the collar wall and guiding it along the working area adjacent to the lower collar line to partially or completely melt the lower part of the collar wall along the lower collar line and fuse it with an adjacent part of the second plastic part.

[0038] The at least one connecting opening is preferably open to the outside or closed in the area of ​​the lower collar line. For example, the connecting opening is closed by a wall element that does not impede the melting process but is meltable and therefore provides additional material for the welding process. If a connecting opening is not required for the welding process, it remains closed, which can be advantageous for aesthetic or insulation purposes.

[0039] The width of the working area is selected such that sufficient material can be melted adjacent to the second housing part to create a reliable, metallurgical bond. The width of the working area depends on the design, particularly the inclination of the collar wall, and is preferably selected within a range of 1 mm to 4 mm.

[0040] The opening axis is, for example, a central axis, longitudinal axis or centroidal axis of the connecting opening, which is normally aligned at least approximately perpendicular to the first and second housing parts.

[0041] The inventive method allows first and second housing parts to be welded together, which are made of any materials that can be melted and metallurgically bonded under the influence of a laser beam. The housing parts can therefore be made of any transparent or opaque materials. Advantageously, it is thus possible to use and weld together housing parts made of identical materials.

[0042] For example, the weldable or otherwise connectable housing parts are made of thermoplastic materials, ABS (acrylonitrile butadiene styrene copolymers), POM (polyoxymethylene) or polyamide.

[0043] Normally, it is sufficient to provide only the first housing part with one or more connecting openings to achieve a stable connection. However, if the housing parts are only partially accessible, for example, it may be advisable to provide connecting openings on both the first and second housing parts.

[0044] Preferably, several connecting openings are provided, for example in series or parallel to one another, so that the two housing parts can be connected along a certain area. The housing parts can have any shape and contour.

[0045] The first housing part, for example, a housing component, can have several wall elements angled relative to each other, one, several, or all of which are provided with weldable connection openings. The connection of housing components preferably takes place on at least two opposite sides.

[0046] The connecting openings can also have any shape and shape and can extend arbitrarily along the first part of the housing.

[0047] The connecting openings preferably have a collar wall that forms a continuous loop. Alternatively, the connecting openings can also be open to the outside and, for example, arranged at the edge of the first housing part.

[0048] The at least one connecting opening has, for example, a rounded, circular, rectangular, elliptical, or polygonal cross-section. In particularly preferred embodiments, the connecting opening is slot-shaped or groove-shaped. For example, the connecting opening or serially arranged connecting openings are arranged such that a desired weld seam results after laser welding.

[0049] In preferred embodiments, the connecting opening runs parallel to the top surface of the first housing part along a curve, a straight line, a wavy line, or a polygonal line. A wavy or polygonal shape, for example, allows the length of the weld points and thus the area of ​​the resulting weld points to be increased accordingly.

[0050] It was pointed out that at least one connecting opening may also be closed adjacent to the second housing part by a relatively thin wall element that can be melted under the influence of the laser beam.

[0051] In a first basic embodiment of the method and the housing components, the collar wall of the connecting opening is designed to run at least approximately parallel to the opening axis and thus perpendicular to the top and bottom surfaces of the preferably plate-shaped first housing component. In this case, the laser device can be controlled by the control program such that the laser beam is directed along the collar wall at an angle to the opening axis and towards the working area in order to weld the housing components together.

[0052] In this case, the width of the working area is preferably in the range of 1 mm to 2 mm. Due to the inclination of the laser beam, the width of the working area must not be chosen too high, as otherwise there is a risk that the collar wall above the intended welding point will be melted and no or only an insufficient connection between the two housing parts will result.

[0053] The maximum inclination of the laser beam relative to the opening axis is limited by various factors, in particular the length of the connecting opening and possibly a work surface that presses the first housing part against the second housing part. Therefore, arbitrarily shaped connecting openings cannot be implemented.

[0054] In this case, the laser beam must also be guided precisely along the lower collar line, so that the working area is practically reduced to the width of the lower collar line.

[0055] This initial basic design therefore places high demands on the mobility and precision of the laser device as well as on the quality of the control program with the calculations for guiding the laser source, which performs movements, including rotations of 180°, in three-dimensional space.

[0056] Provided that at least one connecting opening adjacent to the second housing part is closed by a meltable wall element, the laser beam can be guided with a reduced inclination.

[0057] In a second principal embodiment of the method and the housing parts, it is provided that the cross-section of the collar is reduced from the upper collar line to the lower collar line, for example, continuously, stepwise or partially continuously and stepwise.

[0058] Preferably, the cross-section of the collar wall is reduced continuously, stepwise, or partially continuously and stepwise from the upper collar line to the lower collar line, where the collar wall runs parallel to the opening axis for a fraction of, for example, 1% - 10% of the thickness of the first housing part up to the lower collar line, which is associated with manufacturing advantages.

[0059] In preferred embodiments, the collar wall extends from the upper collar line to the lower collar line along a straight line or a curve. Preferably, the collar wall is concave, at least within the working area where the laser beam is applied. The concave shape of the collar wall can extend into a wall element that closes the connecting opening to the second housing part.

[0060] Preferably, the collar wall, particularly in the described embodiments, is cleaned at an angle in the range of 0° to 60° relative to the opening axis. Optimal results or welded joints are achieved in a further preferred range of 30° to 45°.

[0061] In this second basic configuration, the control program controls the laser device in such a way that the laser beam is directed parallel or inclined to the opening axis towards the working area along the working area in order to weld the housing parts together.

[0062] The second basic design allows, practically without exception, the laser beam to be aligned parallel to the opening axis and to partially or completely traverse the entire working area along the collar wall of the connecting opening.

[0063] The laser source is therefore lowered to a predetermined working height, after which the laser source, with the laser beam aligned parallel to the opening axis, can be moved in a plane to traverse the working area of ​​at least one connecting opening, or the working areas of several connecting openings, as necessary, cyclically. The effort required to program the laser device or to create the control program is thus reduced to a minimum.

[0064] The positional data and dimensions of the connecting openings can be obtained from the design documents or by optical scanning with minimal effort and converted into trajectory data for the laser source. Therefore, only 2D data for the movement of the laser source in a plane needs to be determined and implemented. Since the orientation of the laser source preferably remains unchanged during the work process, the effort required to determine data for adjusting the inclination and height of the laser source is eliminated. If the inclination of the collar walls is known, the inclination of the laser source can, in preferred embodiments, be adjusted accordingly, preferably in a plane, using a suitable device.

[0065] Furthermore, in the second basic design, any obstacles that may be present, such as mounting devices or worktops, are not critical, since the laser source cannot be tilted to the side or rotated in relation to the machined connection opening.

[0066] The connecting openings can be implemented with any dimensions. For example, very narrow and very long or deep slot-shaped connecting openings can be created, which would only allow a minimal inclination of the laser beam, hardly sufficient for the process according to the first embodiment. The housing parts can therefore also have any thickness. The thickness of the housing parts and the dimensions of the connecting openings, subject to the data in one plane, can be disregarded when creating the control program and controlling the laser source. Therefore, it is possible to close the connecting opening on the side of the second separating element with a wall element that can be melted by the laser beam.

[0067] Furthermore, the second basic design results in reduced requirements for the precision of the laser device and the guidance of the laser beam. Due to the inclination of the collar walls, a wide working area results in the region of the lower collar line, along which and within which the laser beam can be guided.

[0068] The working area, i.e., the area in which the laser beam is directed against the collar wall, surrounds the collar in the form of a band. In the first embodiment of the method and housing components, this band has a narrow width, while in the second embodiment, it has a relatively wide width. The width of the working area is preferably selected in the range of 1 mm to 4 mm.

[0069] The second design also results in wider weld points or weld bands, and thus broad, material-bonded connections, which ensure a stable connection between the housing parts. The resulting housings therefore exhibit high strength.

[0070] In all embodiments of the invention, the laser beam can be guided across the entire working area along a closed loop along the collar wall of the connecting openings. However, it can also be advantageous to traverse only parts of the working area with the laser beam. For elongated connecting openings, it may be beneficial to traverse only the longer parallel sections of the working area and to avoid welding corners or edges.

[0071] The sliding door device according to the invention comprises at least one sliding door connected to at least one carriage, preferably two carriages, which are slidably or rollingly mounted in a track, and preferably at least one retraction device according to the invention. The retraction device can be stationary or connected to the sliding door. Typically, the retraction device is directly connected to one of the carriages. Fig. 1 This shows that each drive unit can be equipped with a retraction device, allowing the sliding door to be pulled to the desired position in either direction. Similarly, a retraction device can be stationary near each end position, which engages the sliding door and automatically guides it to the end position.

[0072] In the area of ​​the end position, the coupling slide of the sliding door moving towards the end position is detected and unlocked by an activation element, so that the sliding door is automatically guided towards the corresponding end position by the action of the force device and damped by the retraction device.

[0073] As the sliding door retracts from its end position, the coupling carriage is held by the activation element over a distance during which the force device is reloaded and the coupling carriage is relocked. Once the coupling carriage reaches the locking section of the guide track, it is rotated and released by the activation element, allowing the sliding door to continue moving with the loaded retraction device.

[0074] In preferred embodiments, the sliding door device is equipped with a running rail which has a rail cross-section within which a mounting rail is arranged, which is connected to the running rail which has a mounting cross-section and in which uniformly designed support elements of the retraction device and / or uniformly designed mounting parts of further auxiliary devices are positively engaged.

[0075] Preferably, uniformly designed support elements of at least one insertion device are slidably mounted in the mounting rail, and at least one activation element with a uniformly designed mounting part and at least one auxiliary device, such as a buffer device, holding device, or drive device with a uniformly designed mounting part, are anchored in the mounting rail.

[0076] The mounting rail can be connected to the running rail in one piece, with a positive fit, or by means of connecting elements, for example, a bayonet or dovetail coupling. The mounting rail preferably has two side walls that are connected to each other at the top and have opposing feet at the bottom. The mounting cross-section preferably corresponds to a T-profile, so that T-shaped mounting parts or support elements can be inserted into the mounting rail and moved or anchored within it.

[0077] Therefore, the insertion devices and auxiliary devices are preferably provided with at least one T-shaped support element or mounting element that can be inserted into the mounting rail and moved or locked within the mounting rail.

[0078] Preferably, the stop module, which is inserted into the mounting grid, is provided with a T-shaped mounting part that has sliding elements or rollers and can be inserted into the mounting rail. Preferably, the feed device is provided on its upper side with a sliding support element and a rolling support element.

[0079] The activation element also preferably includes a T-profile-shaped mounting element, so that it can be inserted into the mounting rail and fixed at a suitable location, for example by means of a clamping screw.

[0080] Furthermore, the mounting rail is suitable for accommodating mounting components of any auxiliary devices, such as holding devices, buffer devices, electrical devices, and thus for use with mechanical and / or electrical devices of any type. The mounting components are held securely in the mounting rail and can be fixed, for example, by means of a locking screw.

[0081] The invention is explained in more detail below with reference to the drawings. These show: Fig. 1a a known sliding door device 4' with two carriages 5 holding a sliding door 40, each of which is connected to a known retraction device 6' and is slidably mounted in a guide rail 3; Fig. 1 legs of the known retraction devices 6' of Fig. 1 , which has a housing 1' comprising two housing shells, which is provided on one side with two support wheels 65' and is connected on the other side to a drive 5; Fig. 1c the known feed device 6' of Fig. 1b after removing a housing shell, a view of a force device 62 and a retraction damper 63, which are connected on the left side to an end piece of the housing 1' and on the right side to a coupling slide 61, which is slidably mounted along a guide track 100; Fig. 2a a sliding door device 4 according to the invention with a retraction device 6 according to the invention, which has a housing 1 with a first housing part 11 and a second housing part 12, which are slid into one another and, in this preferred embodiment, welded together, and which is equipped with a coupling slide 61, a force device 62, and a retraction damper 63; Fig. 2 a longitudinal section through the retraction device 6 of Fig. 2a , which is equipped with a force device 62, a coupling slide 61 and a stop module 15, which is inserted into a receiving grid 125, but is not yet equipped with a feed damper; Fig. 3 the feed device 6 of Fig. 2a with a provided draw-in damper 63, which is to be adapted to the housing space 10 of the housing 1; Fig. 3b the draw-in device 6 of Fig. 3a with a quarter cut through the housing 1, into which the retraction damper 63 was inserted on the front side adjacent to the stop module 15, which in comparison to the position of Fig. 3a further back; Fig. 4adas housing 1 of Fig. 3a in a preferred embodiment comprising the first housing part 11A, which has connecting openings 110A provided for welding processes, and the second housing part 12, which can be telescopically inserted into the first housing part 11A and subsequently welded to the first housing part 11A; Fig. 4b the housing 1 of Fig. 4a after the second housing part 12 was moved further into the first housing part 11A; Fig. 4c the housing 1 of Fig. 4a in spatial representation; Fig. 4d the housing 1 of Fig. 4b in spatial representation; Fig. 4 shows housing 1 of Fig. 3a in a preferred embodiment with corresponding grids 110C on the side walls 11S, 12S of the two housing parts 11, 12 and with an adhesive container 75; Fig. 4f the housing 1 of Fig. 3a in a preferred embodiment with corresponding grids 110C on the side walls 11S, 12S of the two housing parts 11, 12 and with a bore 701 in the first housing part 11 and a screw channel 702 in the second housing part 12 and a screw set 7 for connecting the two housing parts 11, 12; Fig. 5a a feed device 1 with two coupling slides 61; Fig. 5b the feed device of Fig. 5a In exploded view Fig. 6, a housing 1 is shown partially, during or after processing by a laser device 9B, comprising a first plate-shaped housing part 11A having three parallel, elongated connecting openings 110A with inclined collar walls 115A, a further first plate-shaped housing part 11B having three parallel, elongated connecting openings 110B with vertical collar walls 115B, and a second housing part 12 onto which the first housing parts 11A, 11B are placed; Fig. 7 shows a section through one of the connecting openings 110A of the first housing part 11A on the left side of Fig. 1 , extending from an upper collar line 1101A on the top 111A of the first housing part 11A to a lower collar line 1102A on the underside 112An of the first housing part 11A, forming a collar wall 115A and having an opening axis x relative to which the collar wall 115A is inclined at an angle α; Fig. 8a a partially shown housing 1 with a first housing part 11A having four elongated and parallel connecting openings 110A with inclined collar walls 115A, with a further first housing part 11A having an elongated connecting opening 110A running along corners and curves and having opening parts parallel to each other in this preferred embodiment 3, and with a second housing part 12 onto which the first housing parts 11A are placed; Fig.8-legged tubular housing 1 with a first tubular housing part 11, which is provided with preferably slotted connecting openings 110 and preferably inclined collar walls 115, and with a second housing part 12, which is shifted into the first housing part 11 and whose outer diameter corresponds at least approximately to the inner diameter of the first housing part 11; Fig. 9 shows the housing 1 partially shown. Fig. 6 with the first two housing parts 11A, 11B during welding; Fig. 9b the partially shown housing 1 of Fig. 9a held between a transparent first work surface 13 and a second work surface 14, through which the first housing parts 11A, 11B are pressed against the second housing part 12; Fig. 10 a first laser device 9A with a vertically held laser source 8 during the processing of connection openings 110A with inclined collar walls 115A of a housing segment 1 and a second laser device 9B with a laser source 8 held by a robot arm 96 during the processing of connection openings 110B with vertical collar walls 115B of a housing segment 1.

[0082] Fig. 1a Figure 1 shows a known sliding door device 4' with two carriages 5 which are slidably mounted in a known running rail 3' and are connected to a sliding door 40 by connecting elements 52 and connecting devices 53.

[0083] The guide rail 3' comprises two side pieces 3S, which are connected to each other at the top by a head piece 3T and which have opposing foot pieces 3F at the bottom. The guide rail 3 therefore has a downwardly open C-profile.

[0084] Each of the drive units 5 comprises a drive body 50 equipped with rollers 51 that are guided on the feet 3F of the guide rail 3 and connected to a known feed device 6'. The feed devices 6' face each other and comprise a housing 1 in which a coupling slide 61 is slidably held along guide tracks and connected to a force device 62 and a feed damper 63. The opposing ends of the housings 1' of the feed devices 6' each form a wheel bearing by means of which support wheels 65' are held, which can roll on the feet 3F of the guide rail 3. The function of such a feed device 6' is known, for example, from US9009918B2.

[0085] The insertion devices 6' must therefore be adapted to the respective guide rail 3 used. For guide rails 3 with a larger cross-section, the support wheels 65' must be held at a greater distance from each other from the housing 1. The same applies to auxiliary devices, such as holding devices or buffer devices, which are inserted into the guide rail 3 and placed on the foot pieces 3F and tightened, for example, by a clamping screw that is turned against the head piece 3T of the guide rail 3.

[0086] For example, if heavier sliding doors 40 are installed, stronger force devices 62 and stronger closing dampers 63 are used. If the travel distance along which the sliding door 40 is pulled into the end position is longer, a longer force device 62 is also typically used. Depending on the force device 62 and the closing damper 63 used, a correspondingly dimensioned housing 1' is provided. Therefore, a separate or proprietary closing device must be provided for each configuration of the sliding door system 4'. The proprietary closing devices, individually adapted to the sliding door system, are provided, which involves considerable effort.

[0087] Fig. 1b shows one of the known infeed devices 6' of Fig. 1 , which has a housing 1' comprising two housing shells, which is provided on one side with two support wheels 65' and is connected on the other side to the running gear body 50 of a running gear 5 by a coupling rail 18. The housing 1' is open at the top so that the coupling slide 61 with the coupling elements 6141, 6142 protrudes from it and, when moved within the running rail 3, engages with an activation element 36 held stationary within the running rail 3 (see Fig. 3a can interact.

[0088] Fig. 1c shows the known feed device 6' of Fig. 1b After removing a housing shell, a force device 62 and a retraction damper 63 are visible. These are arranged within the housing space 10 and connected on the left side to an end piece 16 of the housing 1' and on the right side to the coupling slide 61, which is slidable along a guide track 100. The retraction damper 63 comprises a damping piston 632, which is slidably mounted in a damping cylinder 633 and connected to the coupling slide by a push rod 631. The coupling slide 61, the force device 62, and the retraction damper 63, in the embodiment shown or with other dimensions, can be used in a retraction device 6 according to the invention, as shown in Fig. 2a shown.

[0089] Fig. 2a Figure 1 shows a sliding door device 4 according to the invention, comprising a retraction device 6 according to the invention, and a running gear 5 comprising a running gear body 50, which is guided by means of rollers 51 in a running rail 3 according to the invention to an end position. The running gear body 50 is connected on one side to the sliding door 40 by mounting elements 52, 53 and on the other side by a coupling device 18 (see Figure 18). Fig. 2b ) connected to a retraction device 6 according to the invention. In the end position, the running gear 5 is held by a retaining element 21 of a buffer device 2, which is also advantageously mounted within the running rail 3.

[0090] The guide rail 3 has a cross-sectional area 30 and comprises two side pieces 3S, which are connected to each other at the top by a head piece 3T and which have opposing foot pieces 3F at the bottom. According to the invention, the guide rail 3 also comprises a mounting rail 33, which is connected to the head piece 3T of the guide rail 3 and aligned axially parallel to it. The mounting rail 33 has a mounting cross-section 330 and is provided for the positive-locking reception of uniformly designed support elements 65G, 65R of the feed device 6 and uniformly designed mounting parts 23, 363 of further auxiliary devices, such as the buffer device 2 and the activation element 36.

[0091] The support elements 65G of the feed device 6, which slide within the mounting rail 33, and the support elements 65R of the feed device 6, which are equipped with rollers and roll within the mounting rail 33, as well as the mounting parts 23, 363 of the further auxiliary devices 2, 36, which are clamped within the mounting rail 33 by means of a clamping screw 77, are T-shaped and adapted to the mounting cross-section 33 of the mounting rail 330. If different guide rails 3 always have the same mounting rail 33, the feed device 6 and the further auxiliary devices 2, 36 can always be mounted in the same way. The support rollers 65' of the known feed device 6' of Fig. 1b Therefore, the parts that need to be adapted to the respective running rail 3 can be omitted.

[0092] Sliding door devices 4 according to the invention therefore preferably have an arbitrary guide rail 3, which, however, is always equipped with an identical mounting rail 33. Retracting devices 6 and / or any auxiliary devices 2, 36 provided, which have suitable support elements or mounting elements, are therefore sequentially suspended from the mounting rail 33 and fixed or slidably mounted at suitable positions within the guide rail. The dashed lines show that the mounting rail 33 preferably extends over the entire length of the guide rail 3. Sections of the continuous mounting rail 33 are shown as examples for the individual mounting parts 23, 363 and support elements 65R.

[0093] The user can couple any auxiliary devices to the mounting rail 33. It is not absolutely necessary that one of these devices be a retraction device with a telescopic housing. Retraction devices 6' according to Fig. 1 can be equipped with appropriate support elements 65G and / or 65R and coupled with the mounting rail 33 and inserted into the running rail 3.

[0094] The inventive feed device 6 comprises a housing 1 with a first housing part 11 and a second housing part 12, which are slid into one another and, in this preferred embodiment, welded together. In this preferred embodiment, the two housing parts 11, 12 each comprise two side walls 11S, 12S, which are connected to one another at their underside by a bottom piece 11L, 12L, and thus have a U-shaped cross-section. The U-shaped cross-section of the first housing part 11 is approximately one wall thickness larger than the U-shaped cross-section of the second housing part 12, so that the side walls 11S, 12S and the bottom pieces 11L, 12L of the slid into one another preferably lie in contact and preferably force-fit against one another.

[0095] In the housing compartment 10 of the housing 1, which is open at the top, the coupling slide 61, which is slidably mounted along a guide track 100, the force device 62, and the draw-in damper 63 are arranged. These device parts 61 and / or 62 and / or 63 can, for example, be taken from a conventional draw-in device 6', such as those found in Fig. 1c This is shown as an example.

[0096] By telescopically displacing and mutually fixing the housing parts 11, 12, the housing space 10 can be adapted to the selected device parts 61, 62, 63. The housing 1 can functionally correspond to the housing of conventional feed devices. In preferred embodiments, however, the housing 1 is supplemented by further features according to the invention.

[0097] Functional features of the housing 1 are preferably implemented in the second housing part 12, since the second housing part 12 is inserted into the first housing part 11 and is thus directly exposed on both sides to the installed coupling slide 61 and the installed insertion damper 63. In particular, the guide track 100, into which the coupling slide 61 with guide cams 6111, 6112 (see also Fig. 2b The second housing part 12 engages the first guide cam 6111. On the right side, the guide track 100 runs along a curve at its end into a locking section 101. The first guide cam 6111 is engaged in the locking section 101, causing the coupling slide 61 to tilt forward and lock. Tilting the coupling slide 61 releases the second coupling element 6142 from the stationary activation element 36. The force device 62 is thus tensioned and remains locked by the coupling slide 61 during the continued movement of the retraction device 6. Only when the retraction device 6 retracts and the first coupling element 6141 meets the activation element 36 again, is the coupling slide 61 released from the locking section 101 and coupled to the activation element 36 with the second coupling element 6142 and held stationary, while the force device 62 pulls the sliding door 40 into the end position.In the end position, the second coupling element 6142 remains coupled to the activation element 36, so that when the sliding door 40 is manually pulled out, the force device 62 is tensioned again until the coupling slide 61 rotates back into the locking section 101 and releases the activation element 36.

[0098] In the end position shown, the drive 5 has come into contact with a buffer device 2, which holds the drive body 50 in the end position with a retaining element 21. The buffer device 2 and the activation element 36 have identical mounting elements 23, 363, which are positively engaged and fixed in the mounting rail 33.

[0099] The second housing part 12 also includes a mounting grid 125 into which a stop module 15 is inserted. In this preferred embodiment, the stop module 15, which serves as a limit for the retraction damper 63, carries on its upper side the support element 65R, which is guided in the mounting rail 33.

[0100] Fig. 2b shows a longitudinal section through the feed device 6 of Fig. 2a , which includes a force device 62, a coupling slide 61, and the stop module 15, which is inserted into the mounting grid 125. The draw-in damper 63, which is used, for example, in Fig. 1c or in Fig. 3a The part shown as an example is not yet inserted into the housing 1. The stop module 15 has been moved to the right within the mounting grid 125 to make room for a longer retraction damper 63 or a longer damping cylinder 633 of length L633, which is indicated by a double arrow.

[0101] Fig. 3a shows the feed device 6 of Fig. 2a with a provided retraction damper 63, which is to be adapted to the housing space 10 of the housing 1. The retraction damper 63 has a thin and relatively short damping cylinder 633. The push rod 631 is provided at its front with an anchor 634, which can be hooked into the coupling slide 61. Various adapter parts 6301, 6302, 6303 are shown, which can be connected to the damping cylinder 633 to adapt it to the available housing space 10.

[0102] Fig. 3b shows the feed device 6 of Fig. 3a A quarter-section was made through the housing 1, into which the soft-close mechanism 63 was inserted, adjacent to the stop module 15 on the front side. The stop module 15 was offset as far to the left as possible. Despite this, the selected soft-close mechanism 63 was not able to fill the housing space 10 lengthwise. Therefore, an adapter part 6302 was inserted axially offset from the damping cylinder 633. The diameter of the damping cylinder 633 was also smaller than the diameter of the housing space 10, which is why a hollow cylindrical adapter 6303 was slid over the damping cylinder 633. The adapter 6302 and the adapter 6303 have the same diameter, which is why the resulting extended damping cylinder 633 has the shape of a cylinder that is optimally adapted to the housing space 10.

[0103] In the Figuren 4a - 4f Preferred methods for connecting the two housing parts 11, 12 are shown, which are achieved, for example, by at least one screw connection and / or a welded connection and / or an adhesive connection and / or a snap-fit ​​connection.

[0104] Preferably, the housing parts 11, 12 are joined by a welding process using a laser beam. Methods are known in which a laser beam is passed through a transparent first plastic part and directed at a desired welding point onto a non-transparent second plastic part, which is subsequently melted and bonded to the transparent first plastic part. However, this has the disadvantage that the housing parts 11, 12 must be made of different materials.

[0105] The welding processes described below are particularly advantageous, in which identical materials are used for both housing parts 11, 12, but one or more connecting openings 110 are provided in the first housing part 11, through which the laser beam is guided and directed onto adjacent material of the first and second housing parts. The walls of the connecting openings form a collar that runs parallel to or preferably inclined to an opening axis.

[0106] Fig. 4a The case shows 1 of Fig. 3a in a preferred embodiment comprising the first housing part 11A, which has connecting openings 110A provided for welding processes, and the second housing part 12, which can be telescopically inserted into the first housing part 11A and is subsequently welded to the first housing part 11A.

[0107] Fig. 4b The case shows 1 of Fig. 4a after the second housing part 12 was moved further into the first housing part 11A

[0108] Fig. 4c The case shows 1 of Fig. 4a in spatial representation.

[0109] Fig. 4d The case shows 1 of Fig. 4b in spatial representation.

[0110] It has been shown that the two housing parts 11, 12 have guide elements 116, 126 which engage with each other and ensure the precise axial guidance of the housing parts 11, 12.

[0111] Fig. 4e The case shows 1 of Fig. 3a In a preferred embodiment, the housing parts 11 and 12 have corresponding and opposing grids 110C on their side walls 11S and 12S, and an optional adhesive reservoir 75. The two housing parts 11 and 12 can therefore be moved relative to each other by applying force until the desired length of the housing 1 is achieved. The grids 110C then engage positively and prevent further movement. Optionally, the connection can be secured using the adhesive 75. It is also possible to join the two housing parts 11 and 12 together using only the adhesive 75.

[0112] Fig. 4f The case shows 1 of Fig. 3a In a preferred embodiment, the housing parts 11, 12 have corresponding and opposing optional detents 110C on their side walls 11S, 12S, a bore 701 in the first housing part 11, a screw channel 702 in the second housing part 12, and a screw assembly 7 for connecting the two housing parts 11, 12. The connecting screw 71 can be passed through the bore 701 in the first housing part 11 and through the screw channel 702 in the second housing part and tightened, for example, by means of a nut 72. The optional detents 110C prevent the housing parts 11, 12 from shifting relative to each other under greater force.

[0113] The at least one screw connection 7 ensures the positive engagement of the indexing elements 110C.

[0114] The welding of the housing parts 11, 12 using a laser beam, as preferably implemented, is described in more detail below. The housings 1 and housing parts 11, 12 are shown only fragmentarily. A distinction is made between first housing parts 11A, which have connecting openings 110A with inclined collar walls 115A, and first housing parts 11B, which have connecting openings 110B with vertical collar walls 115B. In various examples, two first housing parts 11A, 11B are connected to a second housing part 12. It is therefore possible that a housing 1 consists of more than two housing parts that are slidable relative to each other and can be connected to one another.

[0115] Fig. 5a Figure 1 shows a feed device 6 with two preferably identical coupling slides 61 and a two-part housing 1, comprising a first housing part 11 into which a second housing part 12 is inserted to a predetermined position. The opposing side walls of the first housing part 11 have connecting openings 110, the edges of which are welded to the second housing part 12. Guide tracks 100 for the first coupling slide 61 are provided in the first housing part 11, and guide tracks 100 for the second coupling slide 61 are provided in the second housing part 12. The guide tracks 101 of the first and second housing parts 11, 12 are arranged such that the locking sections 101 are located at opposite ends of the feed device 6.

[0116] The housing 1 could also have two first or second housing parts 11; 12 which are connected to each other by a second or first housing part 12; 11.

[0117] Fig. 5b shows the feed device of Fig. 5a In exploded view. The two coupling slides 61 are connected by a common force device 62, for example a coil spring, and a common retraction damper 63. When moving from their end positions, the coupling slides 61 are each moved along their respective guide track 100 into their corresponding locking section 101. After the sliding door has moved from one position or the other, the coupling slides 61 are always in the locked position, so that the force device or retraction spring 62 is loaded and, after reaching the associated activation element 36, can pull the held sliding door into its end position. Only the coupling slide 61 facing the reached end position is released.

[0118] In Fig. 5a und 5b The first coupling slide 61 engages with the associated activation element 36, so that the coupling slide 61 is released from the locking position and the sliding door is automatically pulled to the left into the end position.

[0119] Fig. 6 shows a fragmentary view of a housing 1 before, during or after processing by a laser device 9B, which has a robot arm 96 by means of which a laser source 8 can be rotated and moved arbitrarily in three-dimensional space (see also Fig. 10 ).

[0120] The housing 1 comprises a first plate-shaped housing part 11A, shown on the left, which has three parallel, elongated connecting openings 110A with inclined collar walls 115A, and a first plate-shaped housing part 11B, shown on the right, which has three parallel, elongated connecting openings 110B with vertical collar walls 115B. The first housing parts 11A, 11B are placed on a plate-shaped second housing part 12 and can be welded to the second housing part 12 by introducing a laser beam against the collar walls 115A, 115B of the connecting openings 110A, 110B.

[0121] The collar walls 115A, 115B of the first housing parts 11A, 11B extend from an upper collar line 1101A, 1101B adjacent to the top surface 111A, 111B to a lower collar line 1102A, 1102B adjacent to the bottom surface 112A, 112B of the associated first housing part 11A, 11B. The connecting openings 110A, 110B are preferably open in the region of the lower collar line 1102A, 1102B or closed by a meltable wall element or a meltable membrane.

[0122] In the first housing part 11A shown on the left, the lower collar lines 1102A run concentrically within the upper collar lines 1101A due to the inclined collar walls 115A. In the first housing part 11B shown on the right, the upper and lower collar lines 1101B, 1102B run vertically one above the other due to the vertically oriented collar walls 115B.

[0123] The differently designed connecting openings 110A, 110B of the first housing parts 11A, 11B form collars with collar walls 115A, 115B, against which, close to the lower collar lines 1102A, 1102B, the laser beam is guided along a working area in order to melt the collar walls 115A close to the lower collar lines 1102A, 1102B and to connect them to the second housing part 12 in a materially bonded manner.

[0124] The first two housing parts 11A, 11B are preferably pressed against the second housing part 12 before the laser work is carried out, so that thermal and mechanical contact is ensured. Preferably, pressure is exerted on each other via the interlocking housing parts 11, 12, so that good contact is ensured.

[0125] Fig. 7 shows a section through one of the connecting openings 110A of the first housing part 11A on the left side of Fig. 6 , extending from an upper collar line 1101A on the top surface 111A of the first housing part 11A to a lower collar line 1102A on the bottom surface 112A of the first housing part 11A. The wall laterally bounding the connecting opening 110A encloses the opening in the manner of a collar and thus forms a collar wall 115A. The connecting opening 110A is traversed by an opening axis x, which is oriented perpendicular to the top surface 111A and the bottom surface 112A of the first housing part 11A and which preferably runs coaxially with the axis of symmetry or centroid of the connecting opening 110A.

[0126] The collar wall 115A runs partly in a plane and partly conically and is inclined relative to the opening axis x by an angle α, which lies in a range of 0° - 60°, but preferably in a range of 35° - 45°. If the angle α is 0°, the connecting openings 110B are on the right side of Fig. 6 realized.

[0127] The laser beam lb is directed perpendicularly to a working area sr of the cable tray wall 115A, which runs parallel to and adjoins the lower collar line 1102A. The width of the working area sr is preferably selected in the range of 1 mm to 4 mm. The working area sr and a weld line sla lying therein, which remains after the laser beam lb has passed through, are shown by a dashed line.

[0128] A lower part of the collar wall 115A is therefore melted along the lower collar line 1102A and welded to the second housing part 12 in a material-bonded manner.

[0129] The collar wall 115A can have any shape, profile, and gradient. For the manufacture of the first housing part 11A, it is advantageous if a closing collar part 1150A runs vertically. The height of this closing collar part 1150A corresponds to a fraction, for example, 1% to 5%, of the thickness d11 of the first housing part 11A.

[0130] Fig. 8a The case shows 1 of Fig. 6 with a first housing part 11A having four elongated and parallel connecting openings 110A with inclined collar walls 115A, and with a first housing part 11A having an elongated connecting opening 110A extending along corners and curves, and which, in this preferred embodiment, has 3 opening parts or collar parts aligned parallel to each other. For the welding process, it may suffice in embodiments of the invention to weld only the collar parts aligned parallel to each other.

[0131] The connecting openings 110A, 110B can therefore have any shape and be adapted to the shapes and designs of the housing parts and the intended use.

[0132] Fig. 8b Figure 1 shows a tubular housing 1 with a first tubular housing part 11, which is provided with slot-shaped connecting openings 110 and preferably inclined collar walls 115, and with a second housing part 12, which is inserted into the first housing part 11 and whose outer diameter corresponds at least approximately to the inner diameter of the first housing part 11. In this preferred embodiment, the connecting openings 110 are slot-shaped and provided with inclined collar walls 115. A circular weld 118 is preferably provided on the front side, by means of which the tubular housing parts 11, 12 are tightly connected to one another. The housing 1 can therefore also have curves along which the first and the second housing parts 11, 12 are welded together.

[0133] Fig. 9a The case shows 1 of Fig. 6 During processing, two connecting openings 110A, 110B of the first housing parts 11A, 11B were cut open. The housing part 11B on the left side has connecting openings 110B with vertically extending collar walls 115B. To ensure that laser energy can be supplied to the working areas sr of the collar walls 115B, the laser beam lb is directed at an angle towards the connecting openings 110B. The working area sr is relatively narrow and almost coincident with the lower collar line 1102B. The resulting weld line slb therefore runs very close to the lower collar line 1102B. The laser beam lb must therefore be guided precisely.

[0134] The housing part 11A on the right side has connecting openings 110A with inclined and partially conical collar walls 115A. The working areas sr are relatively wide, which is why the vertically oriented laser beam lb, which has left the weld lines sla, always achieves the desired effect even with imprecise guidance.

[0135] Two laser sources 8 are shown, symbolizing that two or more welding processes can be performed simultaneously. The housing parts 11A, 12 of housing 1 of Fig. 4a are preferably welded from both sides simultaneously, so that the housing 1 does not have to be turned over for each welding process.

[0136] The first housing part 11A and the second housing part 11B are preferably provided on their facing sides 112A, 112B, 121 with features such as grids that can engage with each other in various positions of the two housing parts 11A, 11B, so that the two housing parts 11A, 11B can be shifted incrementally, for example by 1 mm to 2 mm, and inserted together in a form-fit manner. In this case, the two housing parts 11A, 11B are joined together in a form-fit and material-fit manner, resulting in a particularly high load-bearing capacity.

[0137] Fig. 9b The case shows 1 of Fig. 9a held between a transparent first work surface 13, which is permeable to the laser beam, and a second work surface 14, through which the first housing parts 11A, 11B are pressed against the second housing part. The force is symbolized by two opposing arrows. The housing 1, which is not yet welded, can now be fed to a laser device 9A, 9B, by means of which the housing parts 11A, 11B, 12 are welded together (see Fig. 6 ) . Housing 1 can now be processed as described in relation to Fig. 9a was described.

[0138] There is no change regarding the processing of the connecting openings 110A with the inclined collar walls 115A. The laser beam lb runs perpendicularly through the first work plate 13 to the collar wall 115A. The thickness of the first work plate 13 only needs to be considered for calculating the height setting of the laser source 8. The connecting openings 110A with the inclined collar walls 115A can therefore be made almost arbitrarily narrow.

[0139] Regarding the machining of the connecting openings 110B with the vertical collar walls 115B, the use of the first work plate 13 leads to additional limitations. The tilt angle of the laser source 8 is further restricted. The thickness of the first work plate 13 must therefore be taken into account when calculating the movement path of the laser source 8. The width of the connecting openings 110B with the vertical collar walls 115B must therefore always be chosen to be sufficiently high so that the laser beam lb can enter the working area.

[0140] Fig. 10 Figure 1 shows a first laser device 9A with a vertically held laser source 8 during the processing of connection openings 110A with inclined collar walls 115A of the housing 1 of Fig. 9a and a second laser device 9B with a laser source 8 held by a robot arm 96 during the processing of connection openings 110B with vertical collar walls 115B of the housing 1 of Fig. 9a .

[0141] The two laser devices 9A, 9B are shown opposite each other in a drawing. Depending on the type of housing 1, however, only one or the other laser device 9A, 9B is used. Likewise, preferably only housings 1 with connecting openings 110A or 110B are machined or welded. The use of connecting openings 110A and 110B is the exception. Also shown is a control unit 95 with a control program 95A for laser device 9A and with a control program 95B for laser device 9B.

[0142] In preferred embodiments, optical sensors are also provided by means of which the position of the housing 1 and the connecting openings 110A and / or 110B is determined and taken into account in the control of the laser source 8.

[0143] The laser device 9A comprises a 3-axis CNC machine which, by means of axial guides 91, 92, 93 and associated drive devices 91A, 92A, 93A, allows the laser source 8, held by a bracket 98, to be adjusted to a specific height and subsequently moved in a plane to weld the housings 1 lying on a worktable 99. The effort required to program the laser device 95A is therefore minimal.

[0144] For example, the housings 1 are optically scanned by scanning in a plane, after which the position data of the collar walls are extracted from the image and used to control the laser source 8.

[0145] A transparent work surface 13 (shown fragmentarily) is preferably placed on the housings 1 before the welding process is carried out, by means of which the first housing parts 11A, 11B are pressed against the second housing parts 12. In this case, the worktable 99 forms the second work surface 14.

[0146] The laser device 9 comprises a robot arm 96, by means of which the held laser source 8 can be moved and rotated freely in space, so that the laser beam can be inserted into the connecting openings 110B or 110A as required. However, the effort required to program these movement sequences is relatively high.

[0147] For processing the connection openings 110B, the laser device 9A can also be used, which is supplemented with a device that allows the inclination of the laser source 8 to be adjusted at least in one plane. After adjusting the inclination, the laser source can again be moved in a plane to perform the welding work. Reference symbol list:

[0148] 1Housing, composite part 10Housing space 100Guide track 101Locking section 11; 11A, 11First housing part, 11LBottom of the first housing part 11 11SSide walls of the first housing part 11 110, 110A, 110BConnecting opening, Connecting openings 1101A, 1101Upper collar line 1102A, 1102BLower collar line 111A, 111BTop of the first housing part 11A, 11B 112A, 112BBottom of the first housing part 11A, 11B 1121A, 1121BMolds in the first housing part 11A, 11B 113Guide part 115A, 115BCollar wall 1150AEnding vertical collar part 12Second housing part 12LBottom of the second housing part 12 12S Side walls of the second housing part 12 121 Top of the second housing part 12 1211 Recesses in the second housing part 12 122 Bottom of the second housing part 12 125 Mounting grid 13 Transparent first work surface 14 Second work surface 15 Stop module 16 Spring coupling 18 Coupling device 19 Wheel bearing 2 Auxiliary device, buffer device,Holding device 21 Holding element 23 Unitary mounting part 3 Running rail 3T Head piece of the running rail 3S Side pieces of the running rail 3F Foot pieces of the running rail 30 Rail cross-section 33 Mounting rail 330 Mounting cross-section 36 Activation element 363 Unitary mounting part 4 Sliding door device according to the invention 4' Known sliding door device 40 Sliding door 5 Running gear 50 Running gear body 51 Wheels 52 Connecting element, threaded rod 53 Connecting device 6 According to the invention Retracting device 6' Known retracting device 61 Coupling slide 6111, 6112 Guide cam 612 Spring coupling part 613 Damper coupling part 6141 First coupling element 6142 Second coupling element 62 Power device; e.g. spring, rubber cord, magnetic spring 63retraction damper 6301, 6302, 6303 adapter parts 631 push rod 632 damping piston 633 damping cylinder 634 armature 65G,65 Pure support elements 65 Proprietary support elements 7 Bolted connection 701 Bore for receiving the connecting screw 702 Screw channel for passing the connecting screw 71 Connecting screw 72 Screw nut 75 Container with adhesive 77 Locking screw 8 Laser source 9A Laser device with perpendicular beam guidance 9B Laser device with spatial beam guidance 90A, 90B Guide device 91, 92, 93 Axial guides 91A, 92A, 93A Drive devices 94 Laser source 95 Control unit 95A, 95B Control programs 96 Robot arm 98 Holder for the laser source 99 Work table a Inclination angle collar wall 115A, 115B d11 Thickness of the first housing part 11A, 11B lb Laser beam L633 Length of the damping cylinder 633 sla first weld line slb second weld line sr working area x opening axis y housing axis,

Claims

1. A feed device (6) with a longitudinal axis (y) for a device (4) with a movable element (40) which is movable along a guide rail (3) to an end position, with a housing (1) which has a housing space (10) and at least one guide track (100) with a locking section (101), with at least one coupling slide (61) which is movable along the at least one guide track (100) into the locking section (101), and with a force device (62) which is connected on one side to the housing (1) and on the other side to the coupling slide (61), characterized by the fact that the housing (1) comprises a first housing part (11) and a second housing part (12) which is shifted into the first housing part (11) parallel to the longitudinal axis (y) and that the two housing parts (11, 12) have corresponding walls or side walls (115, 12S) which are abutting each other and are fixedly or detachably connected to each other.

2. Infeed device (6) according to claim 1, characterized by that a retraction damper (63) is provided which is connected on one side to the housing (1) and on the other side to the coupling slide (61), or that a retraction damper (63) is provided which is connected on one side to the housing (1) and on the other side to the coupling slide (61), and that the retraction damper (63), which preferably has a damping piston (632) which is guided in a damping cylinder (633) and is connected to the coupling slide (61) by a push rod (631), is spatially adapted to the housing space (10) by adapter parts (6301, 6302, 6303).

3. Infeed device (6) according to claim 1 or 2, characterized by the fact thatthe first housing part (11) has two parallel side walls (11S) which are connected to each other by a first housing base (11L), and that the second housing part (12) has two parallel side walls (12S) which are connected to each other by a second housing base (12L) and that at least one guide track (100) is provided in each of the side walls (12S) of the second housing part (12).

4. Infeed device (6) according to claim 2 or 3, characterized by the fact that the second housing part (12) has a receiving grid (125) running parallel to the longitudinal axis (y), into which a stop module (15) is inserted at a selected position, which position is selected according to the dimensions (L633) of the retraction damper (63) or the damping cylinder (633) of the retraction damper (63), and that the retraction damper (63) or the damping cylinder (633) of the retraction damper (63) rests against the stop module (15) on one side.

5. Infeed device (6) according to one of claims 1 - 4, characterized by the fact that at least one sliding or rolling support element (65, 65') is provided on the top or bottom of the housing (1) which is connected to the first housing part (11), to the second housing part (12) or to the stop module (15) according to claim 4.

6. Infeed device (6) according to one of claims 1 - 5, characterized by the fact that the first housing part (11) and the second housing part (12) have form elements (110C) that face each other and which, after the connection of the housing parts (11, 12), interlock in a form-fitting manner and prevent further mutual displacement of the first and second housing parts (11, 12) along the longitudinal axis (y).

7. Infeed device (6) according to one of claims 1 - 6, characterized by the fact thatThe first housing part (11) and the second housing part (12) are connected to each other by interlocking form elements (110C) in the form of snap-fit ​​elements or by screwed connections (7, 71, 72), or by adhesive (75) or by a material-bonded connection (115, 12) or a combination thereof.

8. Infeed device (6) according to one of claims 1 - 7, characterized by the fact thatthe first housing part (11) has at least one connecting opening (110) provided with an opening axis (x) which forms a collar with a collar wall (115) which extends from an upper collar line (1101) adjacent to the top (111) to a lower collar line (1102) adjacent to the bottom (112) of the first housing part (11), and that the collar wall (115A, 115B) is welded along a working area adjacent to the lower collar line (1102) to an adjacent part of the second housing part (12), and that the first and the second housing part (11, 12) are preferably made of the same material.

9. Infeed device (6) according to claim 8, characterized by the fact thatthe first and the second housing part (11, 12) are at least partially complementary to each other, so that the housing parts (11, 12) are aligned in a plane to each other or fit together in a form-fitting manner, at least in the area of ​​the at least one connecting opening (110).

10. Infeed device (6) according to claim 8 or 9, characterized by the fact that at least one connecting opening (110) is designed such that the collar wall 115B runs at least approximately parallel to the opening axis (x), or the cross-section of the collar is reduced from the upper collar line (1101A) to the lower collar line (1102A).

11. Infeed device (6) according to claim 8, 9 or 10, characterized by the fact that the at least one connecting opening (110) has a round, circular, rectangular, elliptical, cross-section or runs in a slit shape along a curve, a straight line, a wavy line or a polygonal line.

12. Method for manufacturing a pulling device (6) according to any one of claims 1-11, comprising a housing (1) with two housing parts (11, 12), comprising: - providing the two housing parts (11, 12) which are telescopically displaceable into one another; - selecting and providing a force device (62); - selecting and providing a pulling damper (63); - displacing the second housing part (12) parallel to the longitudinal axis (y) into the first housing part (11) by a dimension which dimension is selected according to the dimensions of the force device (62) and / or according to the dimensions of the pulling damper (63); - connecting the displaced housing parts (11, 12) by at least one screw connection (7), a weld connection, an adhesive connection or a snap connection; and - installing the device parts (61, 62, 63) of the pulling device (6) before or after connecting the housing parts (11, 12).

13. Sliding door device (4) with at least one sliding door (40) connected to at least one running gear (5) which is slidably held in a running rail (3) and with at least one retraction device (6) according to one of claims 1 - 11, which is connected to the sliding door (40) or to the running rail (2).

14. Sliding door device (8) in particular according to claim 13, characterized by the fact that the running rail (3) has a rail cross-section (30) within which a mounting rail (33) is arranged, which is connected to the running rail (3) which has a mounting cross-section (330) and in which uniformly designed support elements (65G, 65R) of the insertion device (6) and / or uniformly designed mounting parts (65G, 65R, 23, 363) of further auxiliary devices (2, 36) are positively engaged.

15. Sliding door device (8) according to claim 14, characterized by thatuniformly designed support elements (65G, 65R) of at least one insertion device (6) are slidably mounted in the mounting rail (33); that that at least one activation element (36) is anchored in the mounting rail (33) with a uniformly designed mounting part (363); and that at least one auxiliary device (2), such as a buffer device or holding device, is anchored in the mounting rail (33) with a uniformly designed mounting part (23).

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