Holding assembly with mounting bracket for an elongated ceiling light

Abstract

The invention relates to a holding arrangement for holding a luminaire on a ceiling (1), the holding arrangement comprising a mounting rail (2) and a holding device (3) for holding the mounting rail (2) on the ceiling (1), wherein the holding device (3) has holding arms (31) and the holding device (3) is connected to the mounting rail (2) by an actuable connecting element (4), wherein a maximum vertical distance can be determined by the connecting element (4) by which the holding arms (31, 32) can be arranged vertically above a mounting rail section (211, 221) assigned to them, wherein, starting from a mounting state with the connection ensured by the connecting element (4) subjected to a fixing force, a load-mounted mounting state can be realized and the holding device (3) is connected to the mounting rail (2) in such a manner.that, in the loaded assembly state, it is movable from a rest position relative to the support rail (2) along the longitudinal direction (X), wherein the holding arrangement has a spring device (7) which counteracts a movement of the holding device (3) relative to the support rail (2) along the longitudinal direction (X) from the rest position with a restoring force. (Fig. 1a)

Description

[0001] The invention relates to a holding arrangement according to the preamble of claim 1, as well as a luminaire comprising such a holding arrangement, as well as a luminaire arrangement comprising such a luminaire, as well as a method for resetting a holding device of such a holding arrangement, as well as a method for attaching and holding such a luminaire to two ceiling sections of a ceiling.

[0002] A mounting arrangement of this type is designed to hold a luminaire on a ceiling. The mounting arrangement comprises a mounting rail for the luminaire and at least one, and in particular several, mounting devices. The provision of mounting rails for luminaires of this type is generally known in the prior art. Such mounting rails are typically elongated along a longitudinal direction and have at least two side walls that are spaced apart from each other along a transverse direction perpendicular to the longitudinal direction and that each side wall extends elongated along the longitudinal direction.A component extending lengthwise is generally preferably understood to be a design in which the longitudinal extension is at least twice, in particular at least three times, in particular at least five times, in particular at least ten times the extension of the component along any direction perpendicular to the longitudinal direction. The same applies analogously to extensions extending along the transverse direction and extensions extending along the vertical direction. A receiving space for the luminaire is formed between the side walls of the mounting rail, in which at least one luminaire component is arranged. For example, a controllable operating device, a communication radio module, and / or at least one light source can be provided as a luminaire component.In particular, a mounting body can be provided as a luminaire component, to which further luminaire components are attached, for example, a control gear, a communication radio module, a light source, and / or a light-directing optical element, wherein the mounting body or a luminaire component attached to the mounting body is arranged within the receiving space with at least a vertical section to realize the luminaire. Preferably, the side walls are connected to each other by a connecting wall that extends along the transverse direction between the side walls. Preferably, the connecting wall and the side walls are each elongated along the longitudinal direction, with the connecting wall connecting the side walls to each other over their longitudinal length.Preferably, the support rail has a U-shaped cross-section in a plane perpendicular to the longitudinal direction, the legs of which are formed by the side walls and the base of which is formed by the connecting wall. In some embodiments, the support rail is designed as a sheet metal part and manufactured from a sheet by forming, and in particular by cutting. In particularly preferred embodiments, the support rail is designed as an extruded part and is made of metal, for example, aluminum. This allows for a particularly advantageous cross-sectional contour of the support rail perpendicular to the longitudinal direction and / or a particularly high robustness of the support rail to be achieved in a simple manner. Preferably, the support rail has an opening at its lower end along a vertical direction perpendicular to both the longitudinal and transverse directions, through which the receiving space is accessible.Preferably, the opening extends over at least the predominant portion, in particular at least 90%, of the longitudinal length of the side walls, and especially over the entire longitudinal length of the side walls. The opening is formed along the transverse direction between the side walls. If a connecting wall is provided between the side walls, it is preferably arranged opposite the opening along the vertical direction. At least one lighting component can be arranged through the opening with at least a vertical section in the receiving space.

[0003] The term "longitudinal axis" refers to an axis along or parallel to the longitudinal direction. The term "longitudinal" means along or parallel to the longitudinal direction. The term "transverse axis" refers to an axis along or parallel to the transverse direction. The term "transverse" means along or parallel to the transverse direction. The term "vertical axis" refers to an axis along or parallel to the vertical direction. The term "vertical" means along or parallel to the vertical direction.

[0004] Generally, supply lines for the electrical supply of at least one of the luminaire components are preferably provided in the mounting space of the mounting rail, for example on at least one of the side walls, in particular both side walls, and / or on the connecting wall between them. Preferably, these supply lines extend over at least 70%, in particular at least 80%, in particular at least 90% of the total longitudinal length of the mounting rail. Preferably, the supply lines are fixed to the mounting rail within the mounting space relative to the mounting rail. Preferably, the supply lines extend over the entire longitudinal length, i.e., .The through-wiring extends along the longitudinal direction of the mounting rail. Preferably, a mounting body is used to implement a luminaire, on which a contact device is held. This contact device is designed to connect the supply lines for supplying at least one luminaire component with power. Preferably, at least one, and in particular several, contact devices corresponding to the contact device are provided on the supply lines, so that an electrically conductive connection between the contact device or the luminaire component and the supply lines can be established particularly easily.The supply lines can, for example, be designed as lines for supplying at least one lighting component with electrical energy and / or data lines for supplying at least one lighting component with data signals and / or for providing bidirectional communication between at least one lighting component and a data processing device connected to the supply lines.

[0005] Preferably, the side walls of the mounting rail each have a retaining section, directed particularly towards the opposite side wall. The luminaire comprises a mounting body that is fixed to the retaining sections of the mounting rail, particularly by means of a retaining spring. Each spring leg engages the retaining section of one of the side walls, so that the mounting body is held pressed against the retaining sections of the mounting rail by the retaining spring. In the luminaire, it is generally preferred that the opening of the receiving space is closed at least predominantly, and in particular over at least 90% of its longitudinal length, by one or more mounting bodies arranged one behind the other along the longitudinal direction.

[0006] A holding arrangement of this type is designed to secure the support rail it encompasses to ceiling sections that are spaced apart along the transverse direction by an installation opening. It is known from the prior art to use a holding device with at least one first holding arm and at least one second holding arm for this purpose, wherein such a holding device can form a swivel bracket. Preferably, the holding device and the support rail are connected to each other by an actuable connecting element, which ensures a connection suitable for force transmission between the holding device and the support rail. For fastening the holding arrangement to the ceiling sections, the connection is typically capable of withstanding a fixing force acting between the support rail and the holding device along the vertical direction.To allow the mounting rail to be inserted into the installation opening, the holding device is typically designed so that the retaining arms can rest against the mounting rail, thus preventing it from being obstructed. Usually, the retaining arms can be pivoted around the vertical axis by actuating the connecting element until at least one of the retaining arms abuts an outer surface of one of the side walls. This blockage of further pivoting allows the holding device to be moved along the vertical direction, so that the retaining arms press against a vertically upper surface of the ceiling section.In an installed state of the holding arrangement, the support rail is usually inserted into the installation opening with the majority of its vertical extension length, wherein at least one holding device is arranged vertically above the ceiling sections in the installed state, is fixed to the support rail and presses against the ceiling sections with a vertical pressing force from above, so that the support rail is fixed in the installation opening or relative to the ceiling sections by the holding device.

[0007] Typically, each side wall has a mounting rail section projecting laterally away from its lower vertical end. In the installed state, this section rests against one of the ceiling sections from below, while the mounting device presses vertically against the ceiling sections from above. Thus, in the installed state, the mounting rail is usually held in the installation opening and fixed relative to the ceiling sections by the mounting device in such a way that each of the ceiling sections, spaced apart along the transverse direction by the installation opening, is pressed between a mounting rail section and a corresponding section of the mounting device along the vertical direction. The corresponding section of the mounting device is usually designed as a retaining arm.Typically, the support rail section is provided exclusively within such a vertically lower end section of the respective side wall, which extends upwards from the absolute lower end of the side wall over less than 20%, in particular less than 10%, in particular less than 5% of the total vertical extension length of the side wall.

[0008] In principle, holding arrangements with suitable retaining devices are known in the prior art, by means of which the support rail of the holding arrangement is reliably held to the ceiling sections and thus in the installation opening during installation. However, various problems arise in the implementation of suitable holding arrangements, which have not yet been sufficiently solved by known holding arrangements. For example, it must be taken into account that after the support rail is inserted into the installation opening, the retaining device is no longer easily accessible until the desired relative position of the support rail to the ceiling is reached, because the support rail prevents or at least significantly impedes access to the retaining device.Furthermore, it must be considered that the holding devices of such mounting arrangements must ensure a sufficiently reliable fixation of the mounting rail relative to the ceiling sections and, moreover, guarantee the most precise possible determination of the mounting rail's position relative to the ceiling sections. This ensures that the mounting rail is not only permanently protected from falling out of the installation opening but also that the installation opening is visually concealed without any visible gap between the edges of the ceiling sections and the mounting rail. Moreover, such mounting arrangements should also allow for the removal of a mounting rail fixed to a ceiling for maintenance purposes, for which suitable access to the holding device and / or a suitable interaction between the holding device and the mounting rail should be ensured.Furthermore, it must be considered that, especially with modern luminaires, where the high luminous intensity of the light sources used, particularly LEDs, generates significant heat, the mounting rail, due to its considerable length, expands or contracts along its longitudinal axis depending on the luminaire's use. Therefore, at least partial relative movement between the mounting rail and the ceiling sections along its longitudinal axis must be expected and accounted for, even after installation. Preventing any such longitudinal movement can lead to damaging stresses, while allowing it can cause the mounting rail to shift relative to the ceiling sections, resulting in damage or the formation of gaps between the mounting rail and the ceiling sections.It is important to ensure that these undesirable effects are avoided throughout the luminaire's lifespan, even with numerous longitudinal movements of the mounting rail. Furthermore, considering all the problems described, it is essential that the installation of a mounting rail on a ceiling, or the insertion of the mounting rail into the opening and the subsequent fixing of the mounting rail relative to the ceiling sections, should be as easy as possible for an installer.

[0009] The present invention is based on the objective of providing a holding arrangement, a light, a light arrangement, or a method with which at least one problem or disadvantage of generic holding arrangements, lights, light arrangements, or methods is at least partially eliminated.

[0010] As a solution to the problem underlying the present invention, the invention proposes a holding arrangement with the features according to claim 1. The holding arrangement is designed for holding a luminaire on two ceiling sections spaced apart from each other along a transverse direction by a mounting opening. The holding arrangement comprises a support rail extending in a longitudinal direction perpendicular to the transverse direction for insertion into the mounting opening and a holding device for holding the support rail on the ceiling sections. The holding arrangement is suitable for holding the support rail on the ceiling sections by the interaction of the support rail and the holding device when the support rail is inserted into the mounting opening and at least one vertical section, in particular at least the predominant part of its vertical extension length, is within the mounting opening.The mounting rail is located vertically above the undersides of the ceiling sections. It has a first and a second side wall extending along the longitudinal direction and along a vertical direction perpendicular to both the longitudinal and transverse directions, and spaced apart from each other along the transverse direction. A receiving space for at least one luminaire component is provided between the side walls. Preferably, the mounting rail forms this receiving space. The first and second side walls each have an outer surface, with the outer surfaces facing away from each other. Thus, along the transverse direction, the outer surfaces of the two side walls face away from each other.The holding device comprises at least one first holding arm associated with the first side wall and arranged at least partially on its outer surface, and a second holding arm associated with the second side wall and arranged at least partially on its outer surface. The holding arrangement further includes an actuable connecting element by which the holding device is connected to the support rail. The connecting element ensures a connection suitable for force transmission between the holding device and the support rail. The connection is designed to withstand a fixing force acting between the holding device and the support rail along the vertical direction. The connecting element defines a maximum vertical distance by which the holding arms can be positioned with their respective lower vertical ends above their respective sections of the support rail.The vertically lower end is determined by the absolute lower end of the respective support arm along the vertical direction. The vertically lower ends of the support arms do not necessarily have to be positioned directly above their respective assigned support rail section, but can also be positioned at least partially offset longitudinally and / or transversely to it. When the support arrangement is disassembled, the support arms are spaced apart from each other by a first transverse distance at their outward-pointing transverse ends. Furthermore, the maximum vertical distance is fixed to a first value by the connecting element. The transverse ends of the support arms are the absolute ends of the support arms along the transverse direction. Therefore, the transverse distance is, in particular, the absolute transverse extension length of the support device as defined by the support arms.Starting from the disassembled state, the mounting assembly can be brought into an assembled state by actuating the connecting element. Actuation can be achieved depending on the appropriate design of the actuating element. For example, the actuating element can be designed as a screw and thus actuated by rotation, or as an eccentric lever and thus pivotable, or as a detent slider and thus slidable. In the assembled state, the mounting arms are spaced apart by a second transverse distance at their outward-pointing transverse ends, where the second transverse distance is greater than the first. Furthermore, the maximum vertical distance is set by the connecting element to a second value that is smaller than the first value of the maximum vertical distance.Because the transverse distance between the retaining arms is smaller in the disassembled state than in the assembled state, the retaining assembly can be easily inserted vertically into the installation opening without the retaining arms obstructing the installation. Increasing the distance in the assembled state ensures that the retaining assembly does not fall out of the installation opening after installation.

[0011] By actuating the connector, a fixing force can be generated between the holding device and the support rail, which loads the connection between the holding device and the support rail provided by the connector. By loading the connection with the fixing force, a loaded assembly state of the holding arrangement is realized, starting from the assembly state. In particular, the fixing force can pass through the connector, at least partially. Specifically, the entire fixing force is applied to the connector, so that the entire fixing force between the support rail and the holding device acts through the connector. The holding device is connected to the support rail by the connector in such a way that, in the loaded assembly state, it is movable at least partially along its longitudinal direction, starting from a rest position relative to the support rail.The rest position of the holding device refers to a position of the holding device relative to the support rail in which the holding device is located after the load-mounted state has been achieved, and in which, in particular, at least substantially only the fixing force acts on the holding device. The holding device is thus in the rest position in the load-mounted state when no force inducing movement acts on the support rail or between the support rail and the holding device. Generally, the holding device is therefore preferably in the case that the holding arrangement is in the load-mounted state and no external, i.e., .A force originating from outside the holding arrangement, acting on a translational movement between the support rail and the holding device, is in the rest position. In principle, the holding device can be movable such that its movement is not limited to specific types of movement and / or sequences of movement. However, it is generally preferred that the holding device is displaceable and / or tiltable relative to the support rail, at least partially, along its longitudinal direction. Displaceable means that translational movement of at least one section of the holding device along its longitudinal direction is possible. Tiltable means that rotation of at least one section of the holding device about its transverse axis is possible. The holding device is generally preferred, i.e., .At least one section of the holding device, and in particular the entire holding device, is tiltable about the transverse axis relative to the support rail. Preferably, the holding device is tiltable in such a way that the maximum vertical distance by which the holding arms are arranged with their respective lower ends vertically above the support rail section assigned to them remains unchanged. Preferably, the connecting element is tiltable from its rest position about the transverse axis relative to the support rail and / or to the holding device. Preferably, the holding device and connecting element are tiltable about the transverse axis relative to each other and each relative to the support rail. Furthermore, the holding arrangement has a spring device, wherein the spring device acts on the holding device or is designed to act on the holding device.The spring mechanism counteracts any movement of the holding device relative to the support rail along the longitudinal direction, starting from its rest position. Preferably, the restoring force acts directly on the holding device. In particular, the spring mechanism is configured such that the restoring force acts as soon as the holding device moves from its rest position, and preferably, no restoring force acts when the holding device is at rest. In particular, and more preferably, the connecting element, when loaded and installed, is tiltable about a transverse axis from its rest position relative to the support rail and / or the holding device, thereby realizing the movement.The rest position of the fastener refers to the position of the fastener relative to the support rail and / or the holding device in which the fastener is located after the load-mounted state has been achieved, and in which essentially only the fixing force acts on the holding device. The spring device acts on the fastener in such a way that it counteracts any tilting of the fastener by means of a restoring force. In particular, the spring device is connected to the fastener. Preferably, the holding device and the fastener are tiltable about the transverse axis from their respective rest positions, and the spring device can generate a restoring force that counteracts any tilting of the holding device and the fastener.

[0012] The design of the mounting arrangement according to the invention ensures that the luminaire is not damaged even in the event of relative movement between the mounting rail and ceiling sections, for example, due to heat generation during operation and the resulting expansion and subsequent contraction of the mounting rail, and that it remains installed without gaps in the ceiling opening. The solution according to the invention is advantageous, among other reasons, because relative movement between the mounting rail and ceiling sections can simultaneously lead to relative movement between the mounting rail and at least one section of the mounting device, as well as to relative movement, for example, by tilting, between at least one section of the mounting device and the ceiling sections. If this occurs too frequently, it can impair the installation position of the luminaire in luminaires known from the prior art.In the holding arrangement according to the invention, the spring mechanism provides a restoring force that counteracts any relative movement of the holding device, allowing the holding device to return to its rest position each time the support rail contracts after expansion. The spring mechanism, with its restoring force, is thus designed to ensure that the holding device returns to its rest position after deflection, i.e., after expansion. .After movement from its rest position during the load-mounted installation, the support rail is always returned to its rest position and therefore returns to its original position relative to the ceiling sections. The holding arrangement according to the invention thus counteracts any movement of the support rail relative to the ceiling, while simultaneously allowing the support rail to expand to prevent damaging stresses. Advantageously, the holding device according to the invention therefore remains visually appealing throughout its service life, installed in the opening between the two ceiling sections.

[0013] In one embodiment, the maximum vertical distance can be set to at least one further value, and in particular several further values, by actuating the connecting element in the disassembled state of the holding assembly, starting from the first value while maintaining a constant deflection of the spring device. The at least one further value is smaller than the first value and larger than the second value of the maximum vertical deflection in the assembled state. More generally, preferably, the deflection of the spring device remains constant, at least before the load-assembled state is reached and the connection between the holding device and the support rail, secured by the connecting element, is subjected to the fixing force when the maximum vertical distance is changed.In one embodiment, various mounting states of the holding arrangement can be achieved using the connecting element, whereby different maximum vertical distances can be set by implementing the mounting states, or the maximum vertical distance can be set to different second values. In each of the different mounting states, different load-mounting states can be achieved, in which the connection ensured by the connecting element can be subjected to or is subjected to a different fixing force. Furthermore, the spring assembly is deflected from its rest position to a different extent in the different load-mounting states. The rest position of the spring assembly refers to a deflection of the spring assembly in which the spring assembly is in a force-free state. Preferably, the magnitude of the restoring force depends on the fixing force.Preferably, the spring device can be pre-tensioned by actuating the connecting element, so that the magnitude of the restoring force is adjustable. Since various assembly states with different load-mounting conditions are possible, the holding arrangement according to the invention is suitable for use with different ceiling sections of varying thicknesses, as the holding arrangement can be adapted to the respective ceiling thickness by defining different maximum vertical distances. In one embodiment, several different load-mounting conditions with progressively smaller maximum vertical distances compared to the initial assembly state can be achieved or adjusted by actuating the connecting element. If several different assembly states are possible, the aforementioned load-mounting conditions can be achieved starting from each of the different assembly states.In particular, the retaining arms and their respective associated support rail sections are designed to press at least one ceiling section that can be arranged between them when the support rail is held against the ceiling sections and the maximum vertical distance decreases. Specifically, the retaining arms and support rail sections can each apply a pressing force to the ceiling section arranged between them. Preferably, the magnitude of the pressing force depends on the magnitude of the fixing force acting between the retaining device and the support rail during the load-mounted installation, so that the magnitude of the pressing force is adjustable by actuating the connecting element. In particular, the magnitude of the pressing force also increases with increasing fixing force.

[0014] In one embodiment, the holding device and the connecting means are arranged to interact such that the transverse distance by which the holding arms are spaced apart from each other with their outward-pointing transverse ends changes, when the connecting means is actuated, simultaneously with a change in the maximum vertical distance, by a ratio of at most 1:5, in particular 1:10, in particular 1:15, or in particular 1:20 to the change in the maximum vertical distance. More preferably, the transverse distance remains constant when the maximum vertical distance changes. This means that the transverse distance does not change when the maximum vertical distance changes.It is generally preferred that, when the connecting means is actuated, the increase of the first transverse distance to the second transverse distance and the setting of the maximum vertical distance to the second value can be carried out successively, wherein in particular the increase of the first vertical distance to the second transverse distance can be carried out first, in particular without changing the maximum vertical distance, and subsequently the setting of the maximum vertical distance to the second value.

[0015] In one embodiment, a support element is arranged on the connector, by means of which the connector can be supported on the support rail, particularly vertically, and especially on a vertically lower side of the support rail. More preferably, the connector is supported on the support rail in the loaded assembly state, particularly such that the connector is vertically immovable. In particular, the support element is arranged at a vertically lower end of the connector in the assembly state, and more preferably is fixedly connected to the vertically lower end of the connector in the loaded assembly state. In particular, the support element and the connector are vertically displaceable relative to each other in the disassembly state. More preferably, the connector extends through the support element along the vertical direction.In particular, the support element has a vertical opening through which the connector passes. Specifically, the connector has a cross-sectional enlargement in at least one section in a plane perpendicular to the vertical direction, such that the connector cannot pass through the opening of the support element with this section, allowing the connector to be supported by, or bear against, the support element with this section. The cross-sectional enlargement can be formed as an integral part of the connector and / or as an additional element arranged on the connector. In one embodiment, the support element is tiltable relative to the support rail about its transverse axis. Specifically, the support element is tiltable relative to the support rail about its transverse axis when under load.Preferably, the support element and the connecting element are fixed in their position relative to each other in a plane perpendicular to the vertical direction. In particular, the support element and the connecting element are fixed in their position relative to each other such that they can be tilted synchronously about the transverse axis during the load-mounted assembly. This means that a tilting of one support element or connecting element results in a simultaneous tilting of the other support element or connecting element by the same angle of tilt. In particular, during the load-mounted assembly, the support element with a support section bears against the support rail with a vertical pressing force, especially against a vertically lower side of the support rail.If the side walls of the support rail are connected to each other by a connecting wall extending along the transverse direction between the side walls, the support section is generally preferably located on a vertically lower side of the connecting wall against the support rail. A force, in particular a fixing force and / or a pressing force for pressing ceiling sections arranged between the retaining arms and support rail sections in the installed state of the holding arrangement, is generally preferably transmitted exclusively from the support element to the support rail via the support section. In particular, the support section can have several sub-support sections, which can be spaced apart from each other, especially transversely.In the loaded assembly state, the support element does not necessarily have to be in contact with the support rail with all or even an entire support section simultaneously. Instead, the support element can also be in contact with individual support sections and / or only a portion of a support section. Preferably, the support section has a curvature about an axis of curvature extending along the transverse direction. The curvature is such that the support element can roll along the support rail. In particular, due to the curvature, the support element rolls along the support rail with at least a portion of its support section when the support element tilts about the transverse axis during the loaded assembly state. This rolling action enables low-friction tilting and a smooth and secure return of the connecting element to its rest position.The connecting element can therefore be reliably returned to its rest position even after numerous tilting operations. In particular, the curvature is designed in the form of a circular arc or spherically, especially as a spherical segment. In one embodiment, the support element has two legs spaced apart from each other in the transverse direction and extending vertically. More preferably, the legs also extend along the longitudinal and transverse directions, with a longitudinal extension length of the legs being at least 5 times, more preferably at least 10 times, and more preferably at least 15 times, a transverse extension length of the legs. A partial support section of the support element is formed at each of the vertically upper ends of the legs, with the support element more preferably having exactly two support sections.Preferably, the legs each form the partial support section at their upper end. Preferably, the support element engages with its legs in a corresponding longitudinally extending support rail guide formed on the support rail. In particular, the support rail guide has a longitudinally extending guide channel that extends vertically into the support rail. Preferably, the support rail guide has at least one first guide channel and at least one second guide channel, the guide channels running parallel to each other in the longitudinal direction. Preferably, one leg of the support element engages in the first guide channel and the other leg engages in the second guide channel. In particular, the support element is designed to roll along a base of the support rail guide with its legs.When the support element tilts about its transverse axis, it rolls along the bottom of the support rail guide. The support rail guide is designed such that the support element is guided laterally along its transverse axis, meaning that the support element's position relative to the support rail is essentially fixed along this transverse axis. Therefore, the support element can only tilt about its transverse axis without jamming or becoming stuck during the tilting process. In one embodiment, the support element is essentially U-shaped, with the legs of the support element being formed by the U's segments. Furthermore, in this embodiment, the U's segments are connected to each other by a U-shaped base. In particular, the U's base has a vertical opening through which the connecting element passes along the vertical direction.Generally, the connecting element is preferably supported on a vertically lower side of the U-shaped base against the support element.

[0016] In one embodiment, a spring force can be generated by means of the spring device, which acts between the holding device and the connecting element. In particular, the connecting element is movable along an actuation direction to determine the maximum vertical distance. More preferably, the connecting element is movable along the actuation direction by actuating the connecting element. In particular, the connecting element is movable along a rotational direction or along a linear displacement direction. In particular, the connecting element is rotatable or vertically displaceable about the vertical axis. More preferably, the connecting element is movable along a rotational direction and along a linear displacement direction relative to the holding device.

[0017] The fastener is preferably designed to be elongated in the vertical direction. In particular, the spring assembly exerts a pressing force against the fastener, at least in the loaded assembly state. This pressing force generates friction between the fastener and the spring assembly in the loaded assembly state. This frictional force, when the fastener is moved along the direction of movement, counteracts the movement. Advantageously, the fastener is thus secured against unintentional movement relative to the holding device, ensuring that the holding arrangement remains reliably in place throughout its service life and even after repeated movement of the holding device and / or tilting of the fastener in the loaded assembly state.In particular, the clamping force can provide a self-locking mechanism that counteracts any actuation of the fastener that would reduce the clamping force, starting from the loaded assembly state. Preferably, the clamping force depends on the clamping force present in the loaded assembly state, with the clamping force increasing with increasing clamping force. Thus, the clamping force can advantageously be adjusted to a specific value by actuating the fastener. Additionally or alternatively, the clamping force increases with increasing movement or tilting of the holding device and fastener relative to each other, advantageously creating a particularly strong locking mechanism between the holding device and fastener in a moved or tilted state.If the holding device and the connecting element are displaceable relative to each other by means of a thread through a rotation of the connecting element relative to the holding device, particularly vertically displaceable, the pressing force causes a self-locking of the thread. Overcoming the static friction of the self-locking advantageously requires a deliberate actuation of the connecting element, thereby reducing the risk of unintentional disassembly of the load-mounted assembly. In one embodiment, the spring force already acts between the holding device and the connecting element in the disassembled state.

[0018] Advantageously, this method allows for increased friction between the holding device and the connecting element, generating a frictional force that counteracts any movement of the holding device and connecting element relative to each other. This ensures that the first transverse distance between the diverging transverse ends can be reliably increased to a second transverse distance before the maximum vertical distance is fixed at a second value. In particular, if the holding device and connecting element are rotatable relative to each other, the rotatability can be inhibited by the spring force, at least until a limiting actuation force is reached, with which the connecting element is actuated, and a corresponding counter-limiting force acting on the holding device is reached.If the maximum vertical distance is set to the second value, the retaining arms typically press against the ceiling sections, making a subsequent change to the transverse distance difficult. In one embodiment, the spring assembly is supported directly by the connecting element and / or the retaining device. More preferably, the spring assembly is supported directly by both the connecting element and the retaining device.

[0019] In one embodiment, the spring assembly is designed such that the restoring force opposing the movement of the holding device or the tilting of the connecting element increases with increasing movement of the holding device or increasing tilting of the connecting element relative to the respective rest position. Advantageously, this allows the holding device and / or connecting element to be reliably returned to their respective rest positions even with comparatively large movements or tilting from the rest position. In one embodiment, the spring assembly is compressible to generate a restoring force. In this embodiment, the spring assembly can be deflected by compression. It is generally preferred that the spring assembly is compressible along the vertical direction. In particular, the spring assembly extends along the longitudinal direction and is unevenly compressible in different longitudinal sections along the longitudinal direction.In one embodiment, the spring assembly comprises at least one spring element. In another embodiment, the spring assembly is formed by a single spring element. In particular, the spring element has at least one extension along the longitudinal direction. More preferably, the spring element is designed as a block, especially in the form of a cuboid. In particular, the restoring force acting during movement of the holding device or tilting of the connecting element can be generated by a spring force produced by the spring element. In particular, the magnitude of the spring force increases or decreases along the extension of the spring element in the longitudinal direction. More preferably, the spring force increases or decreases substantially uniformly. In particular, the spring force increases or decreases due to a non-uniform deflection or compression of the spring element along its extension in the longitudinal direction.In one embodiment, the spring element is made of an intrinsically elastic material, so that the restoring force is generated at least substantially by the elastic properties of the material. In another embodiment, the spring element is made at least partially, and more generally preferably completely, of an elastomer. In particular, the spring element is made of rubber, silicone, and / or polyurethane. The elastomer can be formed as a foam or be substantially solid.

[0020] In one embodiment, the spring assembly is connected to the holding device. More preferably, the spring assembly is directly connected to the holding device. In particular, the spring assembly is an integral part of the holding device. More preferably, the spring assembly is connected to the holding device such that at least one section of it is fixed in position relative to at least one section of the first and / or second holding arm. More preferably, the spring assembly is connected to the holding device in the disassembly state, the assembly state, and the load-mounted assembly state. More preferably, the entire spring assembly is fixed in position relative to the entire first and / or second holding arms, and in particular to the entire holding device, with reference being made at least to the disassembly state, the assembly state, and the load-mounted assembly state.In this context, "positionally fixed" means that the spring assembly and the retaining arms as a whole are not independently movable relative to each other. In particular, the spring assembly and retaining arms remain at least partially fixed in their position relative to each other even if the shape of the spring assembly changes, for example, due to deflection. Preferably, the spring assembly is connected at a vertically lower side to a vertically upper side of a connecting section of the retaining device that joins the retaining arms. In particular, the spring assembly and the retaining device are connected to each other by means of an adhesive bond and / or the spring assembly is fixed in its position relative to the retaining device by a fixing component, especially a fixing bracket. Preferably, the retaining device includes the fixing component.Preferably, the spring assembly, in particular the spring element, is enclosed by the fixing component to define its position relative to the holding device. Through the connection between the spring assembly and the holding device, the spring assembly acts directly on or within the holding device to generate the restoring force when the holding device is moved, so that the holding device can be returned to its rest position, generally preferably to its rest position. Generally preferably, the spring assembly is connected to the holding device in such a way that, in the assembly state and / or in the load-mounted assembly state, the holding device is spaced apart from the support rail. If several different assembly states with different load-mounted assembly conditions are possible, the spring assembly is spaced apart from the support rail in each assembly state and / or load-mounted assembly state.In one embodiment, the holding device has a fixing bracket with a receiving space, wherein the spring assembly is at least partially arranged in the receiving space. The fixing bracket, in particular, has longitudinally and vertically extending legs, by which a transverse extension of the spring assembly can be limited when it is deflected. Advantageously, a higher restoring force can be generated by the spring assembly in this way. Furthermore, the fixing bracket, in particular, has a longitudinally and transversely extending base connecting the legs, by which a deflection of the spring assembly along the vertical direction can be limited. More preferably, the fixing bracket has a substantially U-shaped cross-section in a plane perpendicular to the longitudinal direction, in which case the U-legs form the legs and the U-base forms the base of the fixing bracket.

[0021] In one embodiment, the connecting element applies a fixing force between the holding device and the support rail by engaging the holding device via the spring assembly. In particular, the connecting element does not engage the holding device directly, but only indirectly via the spring assembly. In another embodiment, a fixing element extending along the longitudinal and transverse directions is arranged on the connecting element. Preferably, the fixing element is designed as a plate, particularly as a plate element.A plate-like design, in this context, refers to, and is generally preferred, a design of a component in which the component has a planar extent and a thickness extending perpendicular to this planar extent, wherein the thickness is significantly less than the extent lengths of the planar extension perpendicular to it over the entire extent of the component, in particular less than one-fifth, and in particular less than one-tenth, of the extent length in two mutually perpendicular directions defining the planar extent. Considering this definition, the fixing element extends, in particular, planarly along the transverse and longitudinal directions. The connecting element is connected, in particular, to the spring device via the fixing element.Preferably, the fixing element is connected to the connecting element in such a way that a tilting of the connecting element about its transverse axis can be transmitted to the fixing element, causing the fixing element to tilt synchronously with the connecting element. Preferably, the fixing element thus acts on the spring assembly when the connecting element tilts, making the spring assembly deflectable. Furthermore, the connection between the connecting element and the spring assembly via the fixing element allows a restoring force to act on the connecting element when the connecting element tilts, so that the connecting element can be returned to its rest position, preferably to its rest position. In particular, to apply a fixing force between the holding device and the support rail, the connecting element engages the spring assembly via the fixing element and, via the spring assembly, engages the holding device.In particular, the fixing element, in the disassembled state and / or in the assembled state and / or in the load-mounted state, rests at least partially with a corresponding vertical side of a spring element of the spring assembly. Specifically, the vertical side of the fixing element is its underside or top side. Specifically, the corresponding vertical side of the spring element of the spring assembly is its top side or bottom side opposite the top side or underside of the fixing element. Specifically, the fixing element rests with the outer surface of its vertical side against the spring element with at least 70%, at least 80%, or at least 90%, or more generally preferably completely.

[0022] In one embodiment, the connecting element and the fixing element are movable relative to each other along the vertical direction and / or rotatable about the vertical axis relative to each other when the connecting element is actuated. Preferably, the fixing element is fixed to the holding device in such a way that rotation of the fixing element and the holding device about the vertical axis relative to each other is prevented. Furthermore, the fixing element is fixed to the holding device in such a way that rotation about the transverse axis and / or displacement along the vertical axis of the fixing element and the holding device relative to each other is possible. If the holding device in one embodiment has a fixing bracket, the fixing element is arranged, in particular, in the receiving space formed by the fixing bracket.In particular, longitudinally and vertically extending legs of the fixing bracket form a guide for the fixing element such that the fixing element is vertically displaceable between them relative to the holding device and / or rotatable about the transverse axis, while the legs essentially, and in particular completely, limit the rotation of the fixing element and the holding device relative to each other about the vertical axis. In one embodiment, the connecting element extends at least along the vertical direction. More preferably, the connecting element extends elongated in the vertical direction. In particular, a thread is formed along at least one section of the connecting element along the vertical direction, with which the connecting element engages in a corresponding thread formed on the fixing element.The thread formed on the fastener is preferably an external thread, and the thread formed on the fixing element is an internal thread. Preferably, the threads interlock in such a way that the fastener and fixing element are displaceable relative to each other when the fastener is rotated, particularly about its vertical axis, by actuating the fastener. Preferably, the fastener and fixing element are displaceable relative to each other along the vertical direction. Since, in this advantageous embodiment, only the rotation of the fastener is required to actuate it, the assembly state(s) and the load-bearing assembly state(s) can be implemented easily and without significant effort, starting from the disassembled state.Furthermore, the fixing force can be specifically adjusted by actuating the connecting element via rotation.

[0023] In one embodiment, the spring assembly has a passage through which the connecting element passes. In particular, the passage extends along the vertical axis through the spring assembly. In another embodiment, the retaining element has a passage through which the connecting element passes. In particular, the passage extends along the vertical axis through the retaining device. In particular, the tilting of the connecting element relative to the retaining device about the transverse axis is limited by the passage, in particular by a wall of the passage. In one embodiment, the retaining arms of the retaining device are plate-like. In another embodiment, a connecting section of the retaining device that connects the retaining arms is plate-like.In particular, the opening for the connecting element is designed within the connecting section. The plate-like design allows for high rigidity of the retaining arms and / or the connecting section of the holding device. Preferably, the holding device is designed in the form of a U-shaped bracket, the legs of which are formed by the retaining arms and the base of which is formed by the connecting section of the holding device. In particular, the connecting element and / or the spring assembly and / or a fixing bracket of the holding device is connected to the connecting section and only indirectly connected to the retaining arms via the connecting section. Preferably, the connecting section runs along a connecting wall of the support rail that joins the side walls, especially on its outer surface.In one embodiment, the retaining arms each have a locking element in a vertically lower end section, with, in particular, vertical projections and depressions, wherein the locking element is preferably sawtooth-shaped. In particular, when the retaining arrangement is installed, the retaining arms press against the ceiling sections with the locking element, so that the retaining arms lock onto or into the ceiling sections by means of this locking element, thus achieving the most secure hold possible and preventing, as far as possible, the sliding of the vertically lower end section along the transverse direction relative to the ceiling sections.

[0024] In one embodiment, the retaining arms of the holding device, starting from the disassembled state, are rotatable relative to the support rail when the connecting element is actuated to achieve the assembled state, thereby increasing the transverse distance between the opposing transverse ends, particularly about the vertical axis. Specifically, the retaining arms are rotatable until the first retaining arm and / or the second retaining arm abuts or rests against the outer surface of the respective corresponding side wall of the support rail. Subsequently, the retaining arms are displaceable relative to the support rail along the vertical direction to reduce the maximum vertical distance, particularly through further or continuous actuation of the connecting element.By first increasing the transverse distance between the retaining arms and then decreasing the maximum vertical distance, it can be easily ensured that the retaining arms, with their transverse ends, are sufficiently spaced apart before pressing against the ceiling sections to exert adequate pressure and securely hold the retaining assembly in the installation opening. However, other sequences of movements are also conceivable, provided that the secure holding of the retaining assembly in the installation opening is ensured. For example, the increase in the transverse distance and the decrease in the maximum vertical distance can occur at least partially simultaneously when the fastener is actuated.

[0025] In one embodiment, the support rail has a connecting wall extending along both the longitudinal and transverse directions, through which the first and second side walls of the support rail are connected. Preferably, the connecting wall and the side walls are each elongated along the longitudinal direction, with the connecting wall connecting the side walls along their entire length. In particular, the connecting wall and the side walls together define the receiving space. Preferably, the receiving space has at least one opening arranged vertically opposite the connecting wall for receiving at least one lighting component. Preferably, the opening extends along both the longitudinal and transverse directions.Preferably, the support rail has a U-shaped cross-section in a plane perpendicular to the longitudinal direction, the legs of which are formed by the side walls and the base of which is formed by the connecting wall. In one embodiment, a passage is formed in a connecting wall of the support rail along the vertical direction, through which the connecting element can be passed or is at least passed through during assembly and / or load-bearing assembly. In another embodiment, the support rail sections assigned to each retaining arm are each designed as support rail sections projecting laterally away from the receiving space in a vertically lower end section from the respective side wall, particularly along the transverse direction.Typically, the support rail section is provided exclusively within a vertically lower end section of the respective side wall, extending upwards from the absolute bottom of the side wall over less than 20%, in particular less than 10%, and in particular less than 5% of the total vertical length of the side wall. The support rail sections projecting in this way are designed to rest against a ceiling section when the mounting assembly is installed, and to press against this section to apply a clamping force. Preferably, the support rail sections extend over the entire length of the side walls.

[0026] In one embodiment, the holding arrangement comprises an anchor claw that can be fixed or is fixed in a positionally fixed manner relative to the support rail along its longitudinal direction and has two anchor claw arms, each associated with a different side wall and arranged on the outside of its respective side wall. Preferably, the anchor claw is fixed in a positionally fixed manner relative to the support rail along its longitudinal direction in both the assembly and load-mounted states. Similar to the holding arms of the holding device, each of the anchor claw arms is thus associated with one of the two side walls. The anchor claw is movable along the vertical direction relative to the support rail by means of a fixing element.In one embodiment, the anchor claw can be fixed in a positionally fixed, and in particular free of play, relative to the support rail in a first state and in a second state along the longitudinal direction, wherein in the first state it is vertically further apart from an associated support rail section than in the second state. In one embodiment, the anchor claw has positioning elements designed to engage with the support rail during a movement of the anchor claw along the vertical direction, by which the anchor claw moves from the first state to the second state, in order to fix, and in particular to fix without play, a relative position of the anchor claw relative to the support rail along the longitudinal direction.Naturally, the design focuses on play along the longitudinal direction, although the fixing can also be achieved analogously along the transverse direction. For example, the positioning elements can be designed as cutting edges. Generally, the anchor claw is fixed in the installed state of the holding arrangement in a ceiling, or in a second state, with a play of less than 5 mm, particularly less than 3 mm, and particularly less than 1 mm, relative to the support rail along the longitudinal direction. The anchor claw arms have interlocking sections at their lower ends and are arranged with these interlocking sections above the corresponding support rail sections.By activating the locking mechanism, the anchor claw arms can be pressed down onto a ceiling section located between them and their respective corresponding support rail section, thus fixing the longitudinal position of the support rail relative to the ceiling section. Because the anchor claw is fixed in its longitudinal position relative to the support rail, and the anchor claw arms can grip the top surface of the ceiling sections with their locking sections, the anchor claw ensures a stable longitudinal position of the support rail relative to the ceiling sections. The anchor claw offers the particular advantage of preventing, as far as possible, any movement of the support rail relative to the ceiling sections due to thermal expansion and contraction.The anchor clamp can fix a specific longitudinal section of the support rail, to which it is fixed in a positional manner relative to the ceiling sections along the longitudinal direction. Thus, the support rail can preferably only move relative to the ceiling sections outside the longitudinal extent of the section to which the anchor clamp is fixed during installation. This allows for stress-free thermal expansion and contraction of the support rail, while preventing movement of the support rail relative to the ceiling sections. Generally, the anchor clamp is preferably arranged in a central region of the support rail relative to the longitudinal direction. This allows the support rail to expand or contract in both directions, relative to the longitudinal direction, starting from the section to which the anchor clamp is fixed and which is located in the central region of the support rail.shrink. It should be noted in general that the central region of a component, defined with respect to a direction, is defined as a region that is spaced at least 30%, and in particular at least 40%, of the total extension length of the component along that direction from the ends of the component opposite that direction. It should also be noted in general that the end section of a component, defined with respect to a direction, is defined as a section of the component that extends less than 20%, and in particular less than 10%, of the component's extension length in that direction, starting from an end of the component that bounds the component in the said direction.Preferably, the holding arrangement comprises several holding devices, which are divided into a first group and a second group, with the anchor claw being arranged longitudinally between the first and second groups, and in particular, each group comprising several holding devices spaced apart longitudinally. Preferably, the holding devices, in the installed state, define a position of the support rail relative to the ceiling along the vertical direction, but allow movement of the support rail relative to the ceiling along the longitudinal direction as explained, whereas the anchor claw defines a position of the support rail relative to the ceiling in the installed state both along the vertical direction and along the longitudinal direction.

[0027] In one embodiment, the retaining arrangement has at least one end cap, wherein the end cap is arranged at one end of the support rail along its longitudinal direction. More preferably, the retaining arrangement has two end caps, wherein the first end cap is arranged at a first end and the second end cap at a second end of the support rail along the transverse direction. More preferably, the end cap has a rear wall extending vertically and transversely, as well as a longitudinally extending side wall, which is formed, in particular, partially around an outer edge of the rear wall in a plane perpendicular to the longitudinal direction.In one embodiment, the end of the support rail is movably mounted within a region bounded by the side wall in the longitudinal direction relative to the end cap, in particular slidably mounted, wherein the side wall projects at least partially longitudinally beyond the outer surfaces of the side walls of the support rail and / or a connecting wall of the support rail. The side walls and / or a connecting wall are thus arranged internally with respect to the end cap. Preferably, an inner contour of the side wall of the end cap and an outer contour of the side walls and / or connecting wall of the support rail are designed to correspond to each other in a plane perpendicular to the longitudinal direction, such that they abut each other, at least partially, in the transverse and / or vertical direction, essentially without gaps.In particular, the end cap has two transversely opposed retaining sections, preferably spring-loaded, extending along the longitudinal direction. The retaining sections are preferably designed as spring-loaded retaining clips. Preferably, the end cap engages the support rail with its retaining sections along the longitudinal direction, starting from the end of the support rail, the retaining sections bearing against each of the inner sides of the support rail, forming a clamping connection. The end cap allows movement of the support rail, for example, expansion and contraction, within the installation opening, and any resulting gap can be concealed by the end cap. Preferably, the longitudinal length of the support rail is at least 10, 25, 50, 100, or 150 times the longitudinal length of the end cap.Preferably, the end cap has a transversely and longitudinally extending end cap section designed to abut and / or press against a ceiling section. In particular, the end cap section projects longitudinally away from the support rail and thus extends beyond the support rail along its longitudinal direction. This allows the end cap section to advantageously ensure gap coverage even when the support rail expands and contracts relative to the ceiling during installation. A particularly preferred feature is an anchor claw and an end cap, as described in the respective embodiments. By fixing a longitudinal position of the support rail using the anchor claw and overlapping a gap between a longitudinal end of the support rail and a longitudinally opposite longitudinal end of the ceiling, the end cap reliably covers the gap.This ensures that the end cap section is properly secured. In particular, the end cap section has a vertical upper surface by means of which the end cap can rest against and / or be pressed against a ceiling section. Preferably, the end cap and the support rail are designed to correspond to each other in such a way that the fixing force can be transferred from the support rail to the end cap.

[0028] Furthermore, the invention proposes, as a further solution to the problem underlying the present invention, a luminaire with the features according to claim 23. The luminaire comprises a holding arrangement according to the invention and described above, and at least one luminaire component arranged in the mounting rail of the holding arrangement. The holding arrangement of the luminaire according to the invention can have one or all of the other features described above for the solution introduced above. It is generally preferred that the luminaire component is arranged at least with a vertical section within the receiving space of the mounting rail.

[0029] In one embodiment, the side walls of the mounting rail each have a retaining section, directed particularly towards the opposite side wall, wherein the lighting component is fixed to the retaining sections of the mounting rail, particularly by means of a retaining spring. Specifically, the retaining spring engages behind the retaining section of each side wall with one of its spring legs, so that the lighting component is held pressed against the retaining sections of the mounting rail by the retaining spring. A generally preferred feature is an opening formed at a lower end of the mounting rail, through which the receiving space is accessible, and through which at least one lighting component, particularly several lighting components arranged one behind the other along the longitudinal direction, is closed.

[0030] In one embodiment, the lighting component comprises a controllable operating device, a communication radio module, and / or at least one light source. In particular, a mounting body can be provided as a lighting component, to which further lighting components are attached, for example, an operating device, a communication radio module, a light source, and / or a light-directing optical element.

[0031] In particular, the mounting body or a luminaire component fixed to the mounting body is arranged within the receiving space with at least one vertical section.

[0032] Furthermore, the invention proposes, as a further solution to the problem underlying the present invention, a luminaire arrangement with the features according to claim 24. The luminaire arrangement comprises a luminaire according to the invention and described above, wherein the luminaire may have one or all of the further features described above for the solution introduced previously. The luminaire arrangement further comprises a ceiling with two ceiling sections, between which a mounting opening is provided in which the mounting rail of the luminaire is at least partially arranged. In particular, the mounting rail is arranged in the mounting opening such that at least one vertical section, in particular at least the predominant part of its vertical extension, is located within the mounting opening or vertically above the lower vertical sides of the ceiling sections.Each of the holding arms of the holding device presses vertically, in particular by generating a pressing force, against a vertically upper side of one of the ceiling sections. Furthermore, a support rail section associated with each holding arm presses vertically, in particular by generating a pressing force, against a vertically lower side of one of the ceiling sections. Specifically, the support rail sections are each located on an outer side of one of the side walls of the support rail, projecting transversely away from the receiving space. Thus, each of the ceiling sections is pressed between one of the holding arms and the support rail section associated with it.

[0033] The connection between the holding device and the support rail, ensured by the connecting element, is generally preferably subjected to a fixing force under a load-mounted state, with the fixing force acting particularly along the vertical direction. In particular, the magnitude of the fixing force can be adjusted by actuating the connecting element, so that the pressing force acting on the ceiling sections can be increased or decreased. In particular, the spring assembly can be deflected, or its deflection can be changed, under load-mounted conditions by actuating the connecting element, such that a preload force can be set. This preload force can, in particular, influence a restoring force generated by the spring assembly that counteracts movement of the holding device or tilting of the connecting element.

[0034] Furthermore, as a further solution to the problem underlying the present invention, the invention proposes a method according to claim 25 for resetting a holding device towards a rest position in the assembled state of the holding arrangement according to the invention and described above. The holding arrangement can have one or all of the other features described above for the solution introduced previously. According to the invention, the support rail is first extended along its longitudinal direction. In particular, this extension can be achieved by heating the support rail, for example, by generating significant heat due to light sources inserted into the support rail. As the support rail extends, the holding device, which is connected to the support rail via the connecting element, is moved at least section by section from a rest position relative to the support rail, particularly along its longitudinal direction.Preferably, the holding device tilts relative to the support rail about its transverse axis. In particular, the connecting element also tilts due to its extension relative to the support rail. Furthermore, the connecting element tilts relative to the holding device at least up to a limiting tilt angle. Simultaneously or with a time delay to the movement of the holding device or the tilting of the connecting element, the spring assembly is deflected, thereby generating a restoring force acting between the support rail and the holding device, which counteracts the movement of the holding device or the tilting of the connecting element. In particular, the restoring force also acts between the connecting element and the holding device and / or between the connecting element and the support rail. The spring assembly is particularly deflected by a vertical compression of the support rail caused by the movement or tilting.Preferably, the restoring force increases with increasing movement of the holding device or increasing tilting of the connecting element relative to its respective rest position. Subsequently, the support rail contracts again along its longitudinal direction, in particular until it has the same longitudinal extension length as before the expansion. This contraction can be caused, in particular, by cooling the support rail, for example, by switching off light sources installed in the support rail. Simultaneously with the contraction or with a time delay, the holding device is returned to its rest position by the restoring force applied by the spring assembly. Preferably, the spring assembly is returned to its rest position. In particular, the spring assembly is supported, at least indirectly, on the support rail to apply the restoring force to the holding device.In particular, the spring assembly is supported on the support rail via the connecting element. If the connecting element also tilts when the support rail expands, the restoring force exerted by the spring assembly returns it to its rest position, in particular to its rest position.

[0035] Furthermore, as a further solution to the problem underlying the present invention, the invention proposes a method according to claim 26 for fastening and holding a mounting rail of a luminaire or for fastening a luminaire with a mounting rail to two ceiling sections of a ceiling spaced apart from each other along a transverse direction by means of a mounting opening, by means of at least one holding device. The mounting rail or luminaire may have one or all of the other features described herein for the solution introduced above.

[0036] The mounting rail is elongated in a longitudinal direction perpendicular to the transverse direction and is designed for insertion into the mounting opening. The mounting rail has at least one first and one second side wall, which extend along the longitudinal direction and along a vertical direction perpendicular to both the longitudinal and transverse directions, and which are spaced apart from each other along the transverse direction. A receiving space for at least one luminaire component is provided between the side walls. The first and second side walls each have an outer surface, with the outer surfaces facing away from each other. Thus, along the transverse direction, the outer surfaces of the two side walls face away from each other.The holding device comprises at least one first holding arm associated with the first side wall and arranged at least partially on its outer surface, and a second holding arm associated with the second side wall and arranged at least partially on its outer surface. Furthermore, the holding device is connected to the support rail by an actuable connecting element. This connecting element ensures a connection suitable for force transmission between the holding device and the support rail. The connection is designed to withstand a fixing force acting between the holding device and the support rail along the vertical direction. In particular, the connection is capable of withstanding a tensile force.The connecting element defines a maximum vertical distance by which the support arms can be positioned with their respective lower vertical ends above their assigned support rail section. The lower vertical end is defined by the absolute bottom end of the respective support arm along the vertical direction. The lower vertical ends of the support arms do not necessarily have to be positioned directly above their respective assigned support rail section, but can also be positioned at least partially offset longitudinally and / or transversely to it.

[0037] According to the inventive method, the support rail is first inserted into the installation opening with at least one vertical section. During insertion, the retaining arms are spaced apart from each other by a first transverse distance at their oppositely pointing transverse ends. Furthermore, the maximum vertical distance is set to a first value by the connecting element during insertion. Subsequently, the connecting element is actuated, in particular rotated about the vertical axis, whereby the retaining arms are spaced apart from each other by a second transverse distance, which is greater than the first transverse distance, and the maximum vertical distance is set to a second value, which is smaller than the first value.The connecting element is actuated at least to the extent that the connection between the holding device and the support rail, ensured by the connecting element, is subjected to a fixing force, with the fixing force acting between the holding device and the support rail. In particular, the fixing force passes through the connecting element at least section by section. Preferably, the fixing force acts substantially along the vertical direction. Under the stress of the fixing force, the holding device is connected to the support rail by the connecting element in such a way that, starting from a rest position relative to the support rail, it is movable at least section by section along the longitudinal direction. Preferably, the holding device is tiltable relative to the support rail about the transverse axis.Furthermore, a spring device is arranged relative to the holding device such that it counteracts any movement of the holding device relative to the support rail along the longitudinal direction, starting from its rest position, with a restoring force. In particular, after actuation is complete, the connecting element can be tilted about a transverse axis from its rest position relative to the support rail and / or the holding device, thereby realizing the movement. Specifically, the spring device acts on the connecting element in such a way that its restoring force counteracts any tilting of the connecting element. In particular, the spring device is connected to the connecting element.

[0038] In particular, after the connecting element has been fully actuated, a lighting component is inserted into the receiving space of the mounting rail along the vertical direction. Preferably, the lighting component is designed as a mounting body to which further lighting components are attached.

[0039] The various embodiments of the invention, including embodiments of different solutions, may each have features that are described in connection with other embodiments, including embodiments of other solutions. Furthermore, embodiments of the invention may have features that are explained here in relation to generic embodiments.

[0040] The invention is explained in more detail below with reference to figures and exemplary embodiments.

[0041] They show: Figure 1: A section of a lighting arrangement according to the invention in various schematic diagrams; Figure 2: Components of a holding arrangement of a lighting arrangement according to the invention in various schematic diagrams; Figure 3: A mounting rail of a holding arrangement according to the invention in a schematic diagram; Figure 4: A lighting arrangement according to the invention in various states relative to a ceiling in various schematic diagrams; Figure 5: Sectional views of a lighting arrangement according to the invention in various states relative to a ceiling in various schematic diagrams; Figure 6: Sectional views of components of a lighting arrangement according to the invention in various states relative to a ceiling in various schematic diagrams; Figure 7: An end cap of a holding arrangement according to the invention in a schematic diagram;Figure 8: Components of an embodiment of a holding arrangement according to the invention in various schematic diagrams in different states relative to a ceiling; Figure 9: Components of an embodiment of a holding arrangement according to the invention in various schematic diagrams in different states relative to a ceiling.

[0042] In Figure 1 , encompassing the Figures 1a and 1b Figure 1 shows a simplified schematic section of an embodiment of a lighting arrangement 100 according to the invention. Figure 2 , encompassing the Figures 2a to 2d , are components of a holding arrangement of a lighting arrangement 100 according to the invention, shown in simplified schematic form. Figure 3 A support rail 2 of a holding arrangement according to the invention is shown in a simplified schematic representation. The Figures 1 to 3The illustrated embodiment of a lighting arrangement 100 or a holding arrangement according to the invention is explained below with reference to all the figures mentioned.

[0043] The lighting arrangement 100 has a ceiling 1 with two ceiling sections 11, 12. Furthermore, the lighting arrangement 100 has a mounting rail 2, an embodiment of a holding device 3 according to the invention, and a connecting means 4, wherein the mounting rail 2 is Figure 1 The illustration only partially shows the lighting arrangement. In the depicted state, the mounting rail 2 is arranged or inserted with a vertical section in a mounting opening 10 in the ceiling 1. The ceiling sections 11, 12 are spaced apart from each other along the transverse direction Y by the mounting opening 10, which extends along the longitudinal direction X. In the described embodiment, the retaining device 3 is designed in the form of a U-shaped bracket, which forms a section of theU- The connecting section 30 forms a connection section 30. The connecting section 30 connects two retaining arms 31, 32 of the holding device 3, which are formed by the U-shaped legs of the U-shaped bracket. Each of the retaining arms 31, 32 is assigned to exactly one of the ceiling sections 11, 12. In the present and generally preferred form, the retaining arms 31, 32 each have a sawtooth-shaped locking element in a vertically lower end section, by means of which the retaining arms 31, 32 are locked to the ceiling sections 11, 12 for a particularly secure hold. A fixing bracket 5, also in the form of a U-shaped bracket, is arranged on an upper side of the connecting section 30 along the vertical direction Z, and the fixing bracket 5 can also be an integral part of the holding device 3. U-The legs and the U-shaped base of the U-shaped bracket together define a receiving space for the fixing bracket 5. Within this receiving space, a fixing element 6, connected to the connecting element 4, and a spring assembly 7 are arranged. The fixing element 6 rests almost completely against the upper surface of the spring assembly 7 with its underside. The connecting element 4 and the fixing element 6 are connected to each other in such a way that they are vertically displaceable relative to one another. Simultaneously, their position relative to each other in a plane perpendicular to the vertical direction Z is fixed such that, if the connecting element 4 is tilted about its transverse axis, the fixing element 6 tilts synchronously with it and / or vice versa.The connecting element 4 extends elongated along the vertical direction and passes through vertical openings in the support rail 2, holding device 3, spring assembly 7, fixing element 6, and fixing bracket 5. In the present and generally preferred configuration, the connecting element 4 is designed as a screw. The longitudinal and / or transverse extension lengths of the openings formed in the support rail 2, holding device 3, and fixing bracket 5 are greater than the corresponding longitudinal and / or transverse extension lengths of the connecting element 4, so that the connecting element 4 can be tilted relative to the support rail 2, holding device 3, and fixing bracket 5 at least up to a limit tilt angle about the transverse axis. The limit tilt angle is determined by the extension of at least one of the openings.The feedthrough 301 formed in the holding device 3 has a greater longitudinal extension length than the connecting element 4.

[0044] A support element 8 is arranged on the connecting element 4, by means of which the connecting element 4 is supported on the support rail 2 in the illustrated installation state of the holding arrangement according to the invention. The connecting element 4 and the support element 8 are fixed in their position relative to each other in a plane perpendicular to the vertical direction Z such that the support element 8 tilts synchronously with the connecting element 4 about its transverse axis and / or vice versa. The connecting element 4 and the support element 8 are slidably mounted relative to each other along the vertical direction Z. The support element 8 is designed in the form of a U-shaped bracket, with each of the two ends of the U-legs forming a partial support section by means of which the support element 8 can be supported on the support rail 2. The partial support sections each have a curvature about an axis of curvature extending along the transverse direction Y.Due to its curvature, the support element 8 can roll along the support rail 2 if the connector 4 tilts, thus enabling the connector 4 to tilt with minimal friction. The connector 4 passes through a vertical opening formed in the U-shaped base of the support element 8. At its lower vertical end, the connector 4 has a cross-sectional enlargement 40 in a plane perpendicular to the vertical direction Z. This enlargement extends beyond the opening formed in the support element 8 in both its longitudinal and transverse dimensions, limiting the vertical movement of the connector 4 and the support element 8 relative to each other. Therefore, the connector 4 can brace itself against the support element 8 via the cross-sectional enlargement 40. Figure 1 and 2The connecting element 4 is shown in two different positions relative to the other components of the luminaire 100 according to the invention or the holding arrangement according to the invention. In the vertically lower position shown, the connecting element 4 is not supported on the support element 8 and thus not on the mounting rail 2, so that no fixing force acts between the mounting rail 2 and the holding device 3. The holding arrangement according to the invention is therefore not yet in the installed state. In the vertically upper position shown, the connecting element 4 is supported on the support element 8 and thus on the mounting rail 2, whereby a fixing force acts between the holding device 3 and the mounting rail 2, so that a load-bearing assembly state of the holding arrangement according to the invention is realized and it is in the installed state.

[0045] The support rail 2 has a first side wall 21 and a second side wall 22, and a connecting wall 20 between them. Together, the side walls 21, 22 and the connecting wall 20 define a receiving space for the support rail 2. On the outer sides of its side walls 21, 22, the support rail 2 has a support rail section 211, 221, which, in the installed state of the holding arrangement according to the invention, presses against a ceiling section 11, 12. Each support rail section 211, 221 is also associated with a holding arm 31, 32. Holding sections 210, 220 are arranged on the inner sides of the side walls 21, 22 facing the receiving space. The holding sections 210, 220 serve to fix a mounting element. Such a mounting element is not shown here.For example, such a mounting body can be arranged relative to the support rail 2 in such a way that its vertical upper surface presses against the retaining sections 210, 220 from below, with a retaining spring being fixed to the mounting body which engages behind the retaining sections 210, 220 and thus permanently ensures that the mounting body is pressed against the retaining sections 210, 220.

[0046] Such a mounting body can be used in Figure 3 The visible opening that the support rail 2 has on its underside is closed. A longitudinally extending support rail guide 23 is formed in the connecting wall 20, which has two longitudinally parallel guide channels that extend vertically into the connecting wall 20. The support element 8 engages with one of its U-shaped legs in each of the guide channels, thereby stabilizing the support element 8 transversely. Already in the Figure 1 and 3The support rail 2 is shown stretched lengthwise in the longitudinal direction X. Preferably, the support rail 2 has a length of at least 1 m along the longitudinal direction X, and in particular more than 1.20 m, and especially more than 2 m. Preferably, the longitudinal length of the support rail X along the longitudinal direction is more than 10 times, and in particular more than 20 times, its width or length along the transverse direction Y. At both ends of the support rail 2 along the longitudinal direction X, there are, in each case, Figures 1 to 3 End caps not shown are arranged in 200.

[0047] The following describes how the holding arrangement according to the invention is fixed in the installation opening to realize the luminaire arrangement 100 according to the invention and to achieve the installed state. First, the holding arrangement according to the invention is inserted vertically from below into the installation opening, wherein the holding arms 31, 32 are spaced apart from each other by a first transverse distance at their outward-pointing transverse ends, which is smaller than the distance shown in the image. Figure 1The distance shown is such that the retaining arms 31, 32 do not strike the ceiling 1 vertically during insertion. After insertion, the connector 4 is actuated by rotating it around the vertical axis. Because the connector 4 and the fixing element 6 each engage via a thread, a self-locking mechanism is created, so that a rotation of the connector 4 is initially transferred to the fixing element 6. Since the fixing element 6 is located inside the fixing bracket 5 and rests transversely against its U-shaped legs, the connector 4, fixing element 6, fixing bracket 5, and retaining device 3 initially rotate synchronously until the retaining arms 31, 32 strike the outer sides of the respective side walls 21, 22 of the support rail 2 and are attached to it as shown. Figure 1As shown, the retaining arms 31, 32 are in contact with the side walls 21, 22. Upon further actuation of the connector 4, the connector 4 and the retaining device 3, as well as the connector 4 and the support rail 2, and the retaining device 3 and the support rail 2, are each displaceable relative to each other along the vertical direction Z. Thus, further actuation of the connector reduces the maximum vertical distance by which the retaining arms 31, 32 are spaced with their respective lower vertical ends above their respective support rail sections 211, 221, from a first value. After sufficient actuation of the connector 4, the retaining arms 31, 32 engage with the respective ceiling sections 11, 12, while the connector 4 simultaneously rests against a base of the support rail guide 23 via the support element 8.Upon further actuation of the connecting element 4, a clamping force is generated between the holding device 3 and the support rail 2, thereby establishing a loaded mounting state of the holding arrangement according to the invention. Due to this clamping force, the holding arms 31, 32 and the support rail sections 211, 221 each exert a clamping force on the ceiling section 11, 12 arranged between them, so that the ceiling section is clamped between them. This clamping action securely holds the holding arrangement according to the invention to the ceiling sections 11, 12 for the realization of the luminaire arrangement according to the invention. The clamping force can be reduced or increased as required by appropriate actuation of the connecting element 4. Simultaneously, the spring assembly 7 can be pre-tensioned by actuating the connecting element 4.

[0048] The Figures 4 to 6 schematic diagrams show the principles contained in the Figures 1 to 3 The illustrated embodiment of a lighting arrangement 100 according to the invention, or components thereof, in various states relative to the ceiling 1. Figure 4 , encompassing the Figures 4a and 4b , is a section of the embodiment shown in a side view, wherein Figure 4a the lighting arrangement 100 according to the invention in a first state and Figure 4b The luminaire arrangement 100 according to the invention is shown in a second state relative to the ceiling 1. Figure 5 , encompassing the Figures 5a and 5b , is a section of the embodiment in various forms shown in a sectional view from an oblique right, wherein Figure 5a the lighting arrangement 100 according to the invention in the first state and Figure 5b The luminaire arrangement 100 according to the invention is shown in its second state. Figure 6 , encompassing the Figures 6a and 6b, components of the embodiment are shown in a sectional view from an oblique left, wherein Figure 6a the lighting arrangement 100 according to the invention in the first state and Figure 6b The luminaire arrangement 100 according to the invention is shown in its second state. The parts shown in the Figures 4 to 6 The illustrated embodiment of a lighting arrangement 100 or a holding arrangement according to the invention is explained below with reference to all the figures mentioned.

[0049] In the Figures 4a , 5a and 6aIn the first state of the luminaire arrangement 100 according to the invention, the holding device 3 and the connecting means 4 are tilted relative to the mounting rail 2 and the ceiling 1, and relative to each other, about the transverse axis. This tilting is caused by a movement of the mounting rail 2 along the longitudinal direction X, which in turn is a consequence of thermally induced expansion of the mounting rail. The connection between the holding device 3 and the mounting rail 2 by means of the connecting means 4 transmits a movement of the mounting rail 2 along the longitudinal direction X to the holding device 3. However, since the holding device 3, with its holding arms 31, 32, presses down on the ceiling sections 11, 12 from above to fix the mounting arrangement according to the invention to the ceiling 1, the holding device 3 is not longitudinally displaceable in accordance with the movement of the mounting rail 2.Instead, the retaining device 3, with at least one section of the retaining arms 31, 32, remains pressed against the ceiling sections 11, 12 at at least one contact point, so that the retaining device 3 tilts about the contact point around the transverse axis instead of moving longitudinally together with the support rail 2. Simultaneously, the tiltable connecting element 4 also tilts about the transverse axis relative to the support rail 2 and the retaining device 3 due to the movement of the support rail 2, as shown in particular in . Figure 4a can be seen. In the Figures 5a and 6aIt can be seen that the relative tilting of the holding device 3 and the connecting element 4 relative to each other causes the spring assembly 7 to be deflected by compression along the vertical direction Z, since the fixing element 6, which acts directly on the spring assembly 7, tilts synchronously with the connecting element 4 relative to the holding device 3. Due to its deflection, the spring assembly 7 generates a restoring force that acts between the holding device 3, the connecting element 4, and the support rail 2 in such a way that it counteracts the tilting of the holding device 3 and the connecting element 4. However, as long as the support rail 2 remains extended, the force acting on the holding device 3 and the connecting element 4 due to its extension is greater than the restoring force, so that the holding device 3 and the connecting element 4 remain tilted from their respective rest positions.If the support rail 2 shrinks again after expansion, the retaining device 3 and connecting element 4 are returned to their respective rest positions by the continuing restoring force, corresponding to the movement of the support rail 2 caused by the shrinkage and in the opposite direction to the expansion. If the support rail 2 shrinks to such an extent that its longitudinal extension length corresponds to the longitudinal extension length before expansion, the retaining device 3 and connecting element 4 are returned to their respective rest positions by the restoring force, which are located in the... Figures 4b , 5b , 6b are shown. Once the holding device 3 and connecting element 4 have been returned to their rest positions, no restoring force acts on them anymore.

[0050] In Figure 7An end cap 200 of a holding arrangement according to the invention is shown, by means of which the two ends of the support rail 2 are closed along the longitudinal direction X. The end cap 200 has a rear wall 204 extending vertically and transversely, preferably in the form of a plate. A longitudinally extending side wall 201 is formed at least partially circumferentially around an outer edge of the rear wall 204 in a plane perpendicular to the longitudinal direction X. The side wall 201 is such that the support rail 2 with its side walls 21, 22 and the connecting wall 20 can be inserted into a region bounded by the side wall 201, the side wall 201 projecting at least partially beyond the support rail 2 from the outside along the longitudinal direction X.An inner contour of the side wall 201, located in a plane perpendicular to the longitudinal direction X, is designed to correspond to an outer contour of the support rail 2 such that the side wall 201 projects beyond the support rail 2 transversely and vertically, at least to a large extent without gaps. Two transversely opposing retaining sections 202, in the form of retaining brackets, are also arranged on the rear wall 204. The retaining sections 202 are spring-loaded and serve to fasten the end cap 200 to the support rail 2 by means of a clamping connection. The end cap 200 can therefore be easily slid onto the support rail 2, whereby the retaining sections 202 apply a clamping force to the inner surfaces of the respective side walls 21, 22 of the support rail 2. The support rail 2 and the end cap 200 are thus fastened to one another by means of the clamping connection in such a way that they are slidable relative to each other along the longitudinal direction X.In this way, the support rail 2 can expand to prevent stress, while any gap in the installation opening is optically concealed by the end cap 200. Furthermore, the end cap 200 has an end cap section 203 extending transversely and longitudinally. Since the fixing force also acts on the end cap 200 due to the connection between the support rail 2 and the end cap 200, the end cap 200, in the installed state of the holding arrangement according to the invention, overlaps the end cap section 203 with a vertically lower side of the ceiling 1. This allows the end cap 200 to conceal any gap existing between the support rail 2 and the ceiling 1.

[0051] In the Figure 8 and 9 Components of a further embodiment of a holding arrangement according to the invention are schematically depicted in various schematic principle representations. Figure 8 comprehensive the Figures 8a and 8bThe holding arrangement is shown in two different states, each in a frontal view along the longitudinal direction X. Figure 9 comprehensive the Figures 9a and 9b The holding arrangement in the corresponding states is as in Figure 8 shown, however, in perspective from a slanted top-side view. The holding arrangement according to the inventive embodiment shown in the Figure 8 and 9As shown, an anchor claw 9 is fixed in a positionally fixed position relative to the support rail 2 along the longitudinal direction X and has two anchor claw arms 91, 92, each associated with one of the side walls 21, 22 of the support rail 2 and arranged on the outside of the respective side wall 21, 22. The anchor claw arms 91, 92 each have two partial anchor claw arms 911, 912 and 921, 922, respectively, which are spaced apart from each other in the longitudinal direction X, which is generally advantageous according to the invention. The anchor claw arms 91, 92 each have claw sections at their lower ends, which in this case are designed in the form of teeth or sawtooth shapes. In the Figures 8a and 9aIn the depicted state of the holding arrangement, the anchor claw arms 91, 92 are spaced apart along the vertical direction Z from the top of the ceiling sections 11, 12. In the illustrated embodiment, the support rail sections 211, 221 are already pressed against the underside of the ceiling sections 11, 12 in this state, for example by holding devices 3 as previously described and / or further holding devices. In the embodiment shown in the Figures 8b and 9bIn the depicted state, the anchor claw arms 91, 92 are pressed vertically from above against the ceiling sections 11, 12 with their lower ends and thus with their claw sections. This positions the anchor claw arms 91, 92, and thus the entire anchor claw 9, in a fixed position along the longitudinal direction X relative to the ceiling sections 11, 12. Furthermore, the anchor claw 9 is fixed in a fixed position along the longitudinal direction X relative to the support rail 2. Pressing the anchor claw 9 from above against the ceiling sections 11, 12 is achieved by a fixing element 900, which in this case is designed as a screw and can be designed analogously to the connecting element 4 described in previous embodiments. According to the invention, a play-free fixation along the longitudinal direction X of the anchor claw 9 relative to the support rail 2 is generally advantageous.In the present embodiment, this play-free fixation is ensured by providing a cutting edge on each of the anchor claw arms 91, 92. During the movement of the anchor claw 9 relative to the ceiling sections 11, 12 along the vertical direction Z, by which the anchor claw 9 is moved vertically downwards relative to the support rail 2, these cutting edges cut into the outer surfaces of the side walls 21, 22 of the support rail 2, which is generally advantageous according to the invention. In this embodiment, the cutting edges are formed by partial cutting edges 9110, 9120, 9210 of the anchor claw arms 91, 92, which is generally advantageous according to the invention, wherein preferably each of the partial anchor claw arms 911, 912, 921, 922 has a partial cutting edge 9110, 9120, 9210.According to the invention, the cutting edges of the anchor claw 9 are advantageously arranged in a first state of the holding arrangement, in which the anchor claw arms 91, 92 are spaced further apart along the vertical direction Z from the support rail sections 211, 221 associated with them than in a second state of the holding arrangement, at least over a cutting edge section, without cutting contact relative to the respective side wall 21, 22 of the support rail 2 associated with them, whereas in the second state they are arranged over the cutting edge section in cutting contact with the respective side wall 21, 22 associated with them. The cutting contact can be generated by moving the anchor claw 9 with its anchor claw arms 91, 92 downwards along the vertical direction Z relative to the support rail 2 from the first state until the second state is reached, and thereby the cutting edges cut into the side walls 21, 22.The anchor claw 9 can be used, as can be seen from the overview of the . Figures 8b and 9b It is evident that a specific longitudinal section of the support rail 2, within which the anchor claw 9 is fixed in position relative to the support rail 2 with reference to the longitudinal direction X, is permanently fixed in its position along the longitudinal direction X relative to the ceiling sections 11, 12. Reference symbol list

[0052] 1 Ceiling 11 Ceiling section 12 Ceiling section 100 Light arrangement 2 Mounting rail 20 Connecting wall 21 First side wall 22 Second side wall 23 Mounting rail guide 200 End cap 201 Side wall 202 Retaining section 203 End cap section 204 Back wall 210 Retaining section 211 Mounting rail section 220 Retaining section 221 Mounting rail section 3 Retaining device 30 Connecting section 31 First retaining arm 32 Second retaining arm 301 Feedthrough 4 Connecting element 40 Cross-sectional enlargement 5 Fixing bracket 6 Fixing element 7 Spring device 8 Support element 9 Anchor claw 91 Anchor claw arm 92 Anchor claw arm 900 Fixing element 911 Partial anchor claw arm 912 Partial anchor claw arm 921 Partial anchor claw arm 922 Partial anchor claw arm 9110 Partial cutting edge 9120 Partial cutting edge 9210 Partial cutting edge XL Longitudinal direction Y Transverse direction Z Vertical direction

Claims

1. Holding arrangement for holding a luminaire on two ceiling sections (11, 12) spaced apart from each other along a transverse direction (Y) by a mounting opening, the holding arrangement comprising a support rail (2) extending in a longitudinal direction (X) perpendicular to the transverse direction (Y) for insertion into the mounting opening and a holding device (3) for holding the support rail (2) on the ceiling sections (11, 12), wherein the support rail (2) has at least a first and a second side wall (21, 22) extending along the longitudinal direction (X) and along a vertical direction (Z) perpendicular to the longitudinal direction (X) and transverse direction (Y) and spaced apart from each other along the transverse direction (Y), wherein a receiving space for receiving at least one luminaire component is provided between the side walls (21, 22),and - wherein the first side wall (21) and the second side wall (22) each have an outer surface and the outer surfaces face away from each other, and - wherein the holding device (3) has at least one first holding arm (31) associated with the first side wall (21) and arranged on its outer surface, and one second holding arm (32) associated with the second side wall (22) and arranged on its outer surface, and - the holding device (3) is connected to the support rail (2) by an actuable connecting element (4) ensuring a connection suitable for force transmission between the support rail (2) and the holding device (3), which can withstand a fixing force acting between the support rail (2) and the holding device (3) along the vertical direction (Z), - wherein a maximum vertical distance can be determined by the connecting element (4) by which the holding arms (31,32) with their respective vertically lower ends can be arranged vertically above a support rail section (211, 221) assigned to them, - starting from a disassembly state of the holding arrangement in which the holding arms (31, 32) are spaced apart from each other by a first transverse distance with their outward-pointing transverse ends and the maximum vertical distance is set to a first value by the connecting means (4), an assembly state of the holding arrangement can be realized by actuating the connecting means (4) in which the holding arms (31, 32) are spaced apart from each other by a second transverse distance, which is greater than the first transverse distance, with their outward-pointing transverse ends and the maximum vertical distance is set to a second value, which is less than the first value, by the connecting means (4), characterized by the fact thatStarting from the assembly state when the connection ensured by the connecting element (4) is subjected to the fixing force, a load assembly state of the holding arrangement can be realized, and wherein the holding device (3) is connected to the support rail (2) in such a way that, in the load assembly state, it is movable at least sectionally along the longitudinal direction (X) from a rest position relative to the support rail (2), wherein the holding arrangement has a spring device (7) acting on the holding device (3) which counteracts a movement of the holding device (3) relative to the support rail (2) along the longitudinal direction (X) from the rest position with a restoring force.wherein, particularly in the loaded assembly state, the connecting element (4) is tiltable about a transverse axis from a rest position relative to the support rail (2) and / or to the holding device (3), thereby realizing the movement, and the spring device (7) acts on the connecting element (3), in particular is connected to the connecting element, and counteracts the tilting with the restoring force, wherein in particular the spring device (7) is designed such that the restoring force counteracting the movement or tilting increases with increasing movement or tilting compared to the rest position.

2. Holding arrangement according to claim 1, characterized by the fact thatthe maximum vertical distance can be set to at least one further value, which is smaller than the first value and larger than the second value, by actuating the connecting element (4) in the disassembly state, starting from the first value while maintaining a constant deflection of the spring device (7), and / or that different assembly states of the holding arrangement with different maximum vertical distances can be set by means of the connecting element (4), wherein different load-assembly states can be realized in each of the different assembly states, in which the connection provided by the connecting element (4) is subjected to a different fixing force and the spring device (7) is deflected to a different extent from its rest position, wherein in particular the magnitude of the restoring force depends on the fixing force.

3. Holding arrangement according to one of the preceding claims, characterized by the fact thatStarting from the assembly state, several different load-assembly states with progressively smaller maximum vertical distances compared to the assembly state can be set by actuating the connecting element (4), wherein in particular the retaining arms (31, 32) and the support rail sections (211, 221) assigned to them are arranged to press at least one ceiling section (11, 12) that can be arranged between them when holding the support rail (2) on the ceiling sections (11, 12) with a progressive reduction of the maximum vertical distance, and / or that the retaining device (3) and connecting element (4) are arranged to interact in such a way that the transverse distance by which the retaining arms (31, 32) are spaced apart from each other with their outward-pointing transverse ends changes simultaneously with an actuation of the connecting element (4) in a ratio of at most 1:5,in particular 1:10, in particular 1:20 to change the maximum vertical distance, wherein preferably the transverse distance remains the same simultaneously with a change in the maximum vertical distance.

4. Holding arrangement according to one of the preceding claims, characterized by the fact thata support element (8) is arranged on the connecting element (4), by means of which the connecting element (4) can be supported on the support rail (2), and wherein in particular the support element (8) is penetrated by the connecting element (4) along the vertical direction (Z), wherein in particular the support element (8) is rotatable relative to the support rail (2) about the transverse axis, and in particular the support element (8) and the connecting element (4) are fixed in their position relative to each other in a plane perpendicular to the vertical direction (Z), wherein in particular the support element (8) with a support section bears against the support rail (2) with a vertical pressing force in the load-assembly state, and in particular the support section has a curvature about an axis of curvature extending along the transverse direction (Y), and wherein when the support element (8) is rotated about the transverse axis in the load-assembly state, the support section rolls on the support rail (2),wherein in particular the support element (8) has two legs spaced apart from each other in the transverse direction and extending substantially along the vertical direction (Z), at the vertically upper ends of which a partial support section of the support section is formed, and wherein in particular the support element (8) engages with its legs in a corresponding support rail guide (23) formed on the support rail (2) and extending in the longitudinal direction (X), and wherein in particular the support element (8) rolls on a base of the support rail guide (23) when a rotation is carried out.

5. Holding arrangement according to one of the preceding claims, characterized by the fact thatthe spring device (7) is configured to generate a spring force acting between the holding device (3) and the connecting element (4), wherein in particular the connecting element (4) is movable along an actuation direction to determine the maximum vertical distance, in particular along a direction of rotation or along a linear displacement direction, wherein the spring device (7) presses against the connecting element (4) with a pressing force at least in the load-assembly state, by which friction is generated between the connecting element (4) and the spring device (7) when the connecting element (4) is moved along the direction of movement, wherein in particular the pressing force depends on the fixing force present in the load-assembly state, and in particular increases with increasing fixing force.

6. Holding arrangement according to one of the preceding claims, characterized by the fact thatthe spring device (7) comprises at least one spring element which has at least one extension along the longitudinal direction (X), wherein the restoring force acting during movement or tilting is generated by a spring force produced by the spring element, and wherein in particular the magnitude of the spring force increases or decreases along the extension in the longitudinal direction (X).

7. Holding arrangement according to one of the preceding claims, characterized by the fact that the spring device (7) is connected to the holding device (4), in particular is a component thereof, such that at least one section of the spring device (7) is arranged in a positionally fixed manner to at least one section of the first and / or second holding arm (31, 32) and / or that the spring device (7) is spaced apart from the support rail (2).

8. Holding arrangement according to one of the preceding claims, characterized by the fact thatThe connecting element (4) applies a fixing force between the holding device (3) and the support rail (2) via the spring device (7) to the holding device (3), wherein in particular a fixing element (6), in particular a plate element, extending along the longitudinal direction (X) and transverse direction (Y), is arranged on the connecting element (4), via which the connecting element (4) is connected to the spring device (7), wherein in particular the fixing element (6) in the disassembly state and / or in the assembly state bears at least partially, in particular completely, with a vertical side, in particular its underside or its top, against a corresponding vertical side, in particular its top or bottom, of a spring element of the spring device (7), wherein in particular the connecting element (4) and the fixing element (6) are movable relative to each other when the connecting element (4) is actuated along the vertical direction (Z).

9. Holding arrangement according to claim 8, characterized by the fact that the connecting element (4) extends at least along the vertical direction and has a thread, in particular an external thread, along at least one section along the vertical direction (Z), which engages in a corresponding thread, in particular an internal thread, formed on the fixing element (6) such that the connecting element (4) and the fixing element (6) are displaceable relative to each other when the connecting element (4) is rotated, in particular about the vertical axis, and the fixing element (6) is in particular fixed to the holding device (3) in such a way that rotation of these about the vertical axis relative to each other is prevented.

10. Holding device according to one of the preceding claims, characterized by the fact thatthe spring device (7), in particular the spring element, and / or the holding device (3) each have a passage, in particular extending along the vertical direction, through which the connecting means is passed, and / or that the spring device (7) is compressible to generate the restoring force, in particular is compressible along the vertical direction (Z), in particular is compressible unevenly in different longitudinal sections.

11. Holding arrangement according to one of the preceding claims, characterized by the fact thatthat, starting from the disassembly state, the retaining arms (31, 32) of the retaining device (3) are initially rotatable relative to the support rail (2) by increasing the transverse distance between the outwardly pointing transverse ends until the first retaining arm (31) and / or the second retaining arm (32) rests against the outside of the respective associated side wall, and the retaining arms are then displaceable relative to the support rail along the vertical direction to reduce the maximum vertical distance.

12. Holding arrangement according to one of the preceding claims, characterized by the fact thatthe holding device (3) is designed in the form of a U-shaped bracket, the legs of which are formed by the holding arms (31, 32) and the base of which is formed by a connecting section (30) of the holding device (3), wherein in particular the connecting element (4) and / or the spring device (7) and / or a fixing bracket of the holding device (3) is connected to the connecting section and is only indirectly connected to the holding arms (31, 32) via the connecting section.

13. Holding arrangement according to one of the preceding claims, characterized by the fact thatthe support rail (2) has a connecting wall (20) extending along the longitudinal direction (X) and transverse direction (Y), through which the first and the second side wall (21, 22) of the support rail (2) are connected to each other, wherein the side walls (21, 22) and the connecting wall (20) together define the receiving space, and wherein in particular the receiving space has at least one opening arranged vertically opposite the connecting wall (20) and extending along the longitudinal direction (X) and transverse direction (Y) for receiving at least one luminaire component into the receiving space.

14. Holding arrangement according to one of the preceding claims, characterized by the fact thatThe holding arrangement (3) comprises an anchor claw (9) which can be fixed or is fixed in a positionally fixed position relative to the support rail (2) along the longitudinal direction (X) and which has two anchor claw arms (91, 92) which are each assigned to a different side wall (21, 22) and are arranged on the outside of the side wall (21, 22) assigned to them, wherein the anchor claw (9) is movable along the vertical direction (Z) relative to the support rail (2) by means of a fixing means (900) and the anchor claw arms (91, 92) have claw sections at their lower ends and are arranged with these above support rail sections (211, 221) assigned to them, so that by actuating the fixing means (900) the anchor claw arms (91, 92) can be pressed from above onto a ceiling section (11, 12) arranged between them and the support rail section (211, 221) assigned to them. Defining a longitudinal position of the support rail (2) relative to the ceiling section (11, 12),wherein in particular the anchor claw (9) is arranged in a central area of ​​the support rail (2) with respect to the longitudinal direction (X)...

15. Luminaire arrangement comprising a luminaire comprising a holding arrangement according to one of the preceding claims and a luminaire component arranged in the mounting rail (2), and a ceiling (1) with two ceiling sections (11, 12) between which a mounting opening is provided in which the mounting rail (2) of the luminaire is at least partially arranged, wherein each of the holding arms (31, 32) of the holding device (3) presses vertically against a vertically upper side of each of the ceiling sections (11, 12) and a mounting rail section (211, 221) associated with each holding arm (31, 32), which is provided in particular on each outer side of each of the side walls (21, 22) of the mounting rail (2), presses against a vertically lower side of each of the ceiling sections (11, 12), so that each of the ceiling sections (11, 12) is located between each of the holding arms (31, 32) and the mounting rail section (211, 221) associated with it. 212) is compressed.

16. Method for resetting a holding device (3) of a holding arrangement according to one of claims 1 to 14 in the assembly state in the direction of a rest position, characterized byThe following process steps: - Expansion of the support rail (2) along the longitudinal direction (X), in particular by heating the support rail (2), wherein the holding device (4) connected to the support rail (2) via the connecting element (4) is moved from a rest position relative to the support rail (2), - Deflection of the spring device (7) and generation of a restoring force acting between the support rail (2) and the holding device (4), which opposes the movement, wherein the restoring force increases in particular with increasing movement relative to the rest position, - Contraction of the support rail (2) along the longitudinal direction (X), in particular by cooling the support rail (2), wherein the holding device (3) is returned to its rest position, in particular to its rest position, by the restoring force applied by the spring device (7).

17. Method for fastening and holding a mounting rail (2) of a luminaire to two ceiling sections (11, 12) of a ceiling (1) spaced apart from each other along a transverse direction (Y) by means of a mounting opening by means of at least one holding device (3), wherein the mounting rail (2) is elongated in a longitudinal direction (X) perpendicular to the transverse direction (Y) and is designed for insertion into the mounting opening, and wherein the mounting rail (2) has at least a first and a second side wall (21, 22) which extend along the longitudinal direction (X) and along a vertical direction (Z) perpendicular to the longitudinal direction (X) and transverse direction (Y) and are spaced apart from each other along the transverse direction (Y), wherein a receiving space for receiving at least one luminaire component is provided between the side walls (21, 22),and - wherein the first side wall (21) and the second side wall (22) each have an outer surface and the outer surfaces face away from each other, and - wherein the holding device (3) has at least one first holding arm (31) associated with the first side wall (21) and arranged on its outer surface, and one second holding arm (32) associated with the second side wall (22) and arranged on its outer surface, and - the holding device (3) is connected to the support rail (2) by an actuable connecting element (4) ensuring a connection suitable for force transmission between the support rail (2) and the holding device (3), which can withstand a fixing force acting between the support rail (2) and the holding device (3) along the vertical direction (Z), - wherein a maximum vertical distance can be determined by the connecting element (4) by which the holding arms (31,32) can be arranged with their respective lower vertical ends vertically above a support rail section (211, 221) assigned to them, , characterized byThe following procedure steps: - Inserting the support rail (2) with at least one vertical section into the installation opening, while the retaining arms (31, 32) are spaced apart from each other by a first transverse distance at their outward-facing transverse ends, and the maximum vertical distance is set to a first value by the connecting element (4); - Actuating the connecting element (4), whereby the retaining arms (31, 23) are spaced apart from each other by a second transverse distance, which is greater than the first transverse distance, and the maximum vertical distance is set to a second value, which is less than the first value; and - wherein the connecting element (4) is actuated at least to the extent that the connection ensured by the connecting element (4) is subjected to a fixing force acting between the retaining device (3) and the support rail (2),wherein the holding device (3) is connected to the support rail (2) in such a way that, during the present load, the latter is movable at least sectionally along the longitudinal direction (X) from a rest position relative to the support rail (2) under the fixing force, wherein a spring device (7) is arranged relative to the holding device (3) in such a way that it counteracts a movement of the holding device (3) relative to the support rail (2) along the longitudinal direction (X) from the rest position with a restoring force, wherein in particular the connecting element (4) is tiltable about a transverse axis from a rest position relative to the support rail (2) and / or to the holding device (3) while realizing the movement and the spring device (7) acts on the connecting element (4), in particular is connected to the connecting element (4),and counteracts tilting with the restoring force; - in particular, inserting a luminaire component along the vertical direction (Z) into the receiving space of the mounting rail (2) to realize the luminaire, wherein in particular the luminaire component is designed as a mounting body to which further luminaire components are fixed.

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