Wire light strip closure system

Description

[0001] The invention relates to an arrangement comprising a retaining spring, support rail and mounting body according to the preamble of claim 1 and a method for fixing a mounting body of a luminaire to a support rail of the luminaire.

[0002] Retaining springs of this type are used to create luminaires that have a mounting body and a support rail. Typically, the support rail serves to secure the luminaire to a structural element, such as a ceiling, with various luminaire components arranged in the support rail, such as electrical cables, control gear, radio modules, etc. Luminaire components are typically attached to the mounting body, such as circuit boards with LEDs, radio modules, electrical cables, and / or control gear. When mounting a luminaire, the support rail is typically first attached to the structural element, and then the mounting body, which is equipped with the aforementioned luminaire components, is fixed to the support rail. The support rail and mounting body form an interior space in which essential luminaire elements are arranged, such as circuit boards, control gear, etc.Typically, the support rail and mounting body are each elongated in a longitudinal direction; the longitudinal extent is preferably at least five times the extent perpendicular to the longitudinal direction. The support rail typically has a cross-section perpendicular to the longitudinal direction, which is open at one vertical end along a vertical direction and delimited along a transverse direction by two support rail side walls, which are interconnected by a support rail base running along the transverse direction and which extend vertically away from the support rail base. The support rail is typically attached to a component via its support rail base.The mounting body is usually arranged at the open vertical end of the support rail, so that the mounting body, together with the support rail, forms an interior space which is circumferentially enclosed by the support rail and mounting body perpendicular to the longitudinal direction. At least in some longitudinal sections, the enclosure of the interior space formed by the support rail and mounting body can be interrupted in sections, for example to allow access to the interior space, for example for air supply. The mounting body often has a cross-section perpendicular to the longitudinal direction, which cross-section comprises a mounting body base extending in the transverse direction and, on the two transverse sides of the mounting body base, mounting body side walls extending vertically away from the mounting body base. Preferably, a mounting body holding anchor, designed in particular as a mounting body projection, is provided on each of the mounting body side walls.Similarly, a support rail retaining anchor, particularly designed as a support rail projection, is preferably provided on each of the support rail side walls. In an operating position, the mounting body base is preferably arranged at the open end of the support rail. Support rail and mounting body are generally manufactured separately from one another. Particularly preferably, the support rail and / or mounting body are each manufactured from a single sheet metal by forming.

[0003] Retaining springs of this type are designed to enable the mounting body to be fixed to the support rail as simply and robustly as possible, while also enabling the mounting body to be easily removed from the support rail. For maintenance purposes, the mounting body must be removable from the support rail so that a technician can access the interior and, for example, replace lamps, circuit boards, or the like. Retaining springs of this type are already known for this purpose. These springs have two holding sections opposite one another in the transverse direction, each of which comprises a base region and holding regions. The base regions of the holding sections merge into one another, and the holding regions are each designed as a holding projection extending outwards in the transverse direction.In other words, a retaining anchor, in particular a retaining projection, is provided on each of the two retaining sections opposite one another in the transverse direction, wherein the retaining anchor of each retaining section extends outwards and thus preferably away from the opposite retaining section. Typically, such a spring is manufactured from a one-piece sheet metal part or from sheet metal parts guided towards one another. This sheet metal part is then fixed to the mounting body by the base regions of the retaining sections, wherein the retaining spring can be pressed against the mounting body base by means of the mounting body retaining anchors with its base regions and thus fixed to the mounting body. The retaining regions are then designed to engage behind the said mounting rail retaining anchors in order to fix the mounting body to the mounting rail in order to press the mounting body and the mounting rail against one another along the vertical.When mounting the mounting body to the support rail, the mounting body is usually moved vertically towards the support rail, with the mounting body positioned vertically beneath the support rail and being moved upwards towards the support rail during installation. By assigning each of the holding sections of the retaining spring, which is attached to the mounting body by the base regions of the holding sections, to one of the support rail retaining anchors, and by positioning a holding section of the respective holding section above its assigned support rail retaining anchor after assembly is complete and pressing vertically downwards against the support rail retaining anchor, the retaining spring ensures that the mounting body and support rail are held vertically pressed against one another.This position, which is reached after completion of the assembly and in which the mounting body and support rail are held vertically pressed against each other by means of the retaining spring, is generally referred to as the fixing position. Each of the support rail retaining anchors is usually provided on one of the support rail side walls, wherein each of the two opposite holding sections is assigned to one of the support rail side walls and thus to one of the support rail retaining anchors. The support rail retaining anchors are usually designed as support rail projections and such that each of the support rail projections of a specific support rail side wall extends in the transverse direction to the respective opposite support rail side wall. Support rail retaining anchors can, however, also be designed, for example, as a recess, in particular as a hole, in the respective support rail side wall. During assembly, ieTo fix the mounting body to the support rail, the two opposing retaining sections of the retaining spring are typically elastically deflected along the transverse direction from their rest position (the rest position refers to the position in which the retaining spring is attached to the mounting body and no external force is exerted on the assembly consisting of the retaining spring and mounting body) while they are guided past the support rail retaining anchors. After vertically passing the support rail retaining anchors, they snap behind them or into them. Such generic retaining springs enable reliable fixation of the mounting body to a support rail.It must be taken into account that high forces can sometimes occur between the mounting body and the support rail, since on the one hand the mounting body carries essential lighting elements of the luminaire and therefore has a not inconsiderable weight and on the other hand sudden movements of the component, such as can occur in ceilings in buildings when the ceilings are subjected to sudden loads, can result in high acceleration along the vertical direction of the mounting body relative to the support rail, which can lead to a high vertical force on the mounting body away from the support rail due to the weight of the mounting body.Due to these requirements, generic retaining springs are usually of complex construction, so that sheet metal with a considerable thickness and flat extension must be used to manufacture the retaining springs and complicated forming steps must be carried out to manufacture the retaining springs so that both a simple and detachable fixing of the mounting body relative to the support rail is possible by means of the retaining springs and at the same time a reliable fixing of the mounting body to the support rail is ensured.

[0004] Document EP 0 380 753 A1 discloses a suspended ceiling with a grid-like supporting framework made of intersecting support rails, which can be suspended at the intersection points of the support rails formed by the node elements, and whose free spaces at the peripheral edges can be sealed airtight and dustproof by panels, e.g., cassettes, lighting elements, or the like. Support rails are used to which cassettes are attached and which are sealed against the cassettes using spring elements. The arrangement is such that the spring elements are inserted into the support rail and press vertically downwards with their base area against the base of the support rail.

[0005] Document EP 2 827 053 A1 relates to a luminaire comprising a support profile for wall or ceiling mounting and a device carrier on which at least one electrical load is arranged. The support profile and device carrier are connected to each other by means of a retaining clip formed as a one-piece sheet metal part. When the parts are assembled, the retaining clips are inserted into the device carrier, with a base region pressing vertically downward against a section of the device carrier.

[0006] Document DE 694 04 743 T2 describes a fastening device for a luminaire comprising a mounting profile and a lamp rail for fluorescent tubes. The mounting profile has an A-shaped cross-section, with the lamp rail arranged between the two legs of the mounting profile. The connection between the mounting profile and the fluorescent tube is established via a spring element, which is referred to as an elastic sheet in the shape of an inverted U. The spring element, inserted between the legs of the mounting profile and the lamp rail when the parts are assembled, applies a downward force to hook-shaped retaining projections attached to the mounting profile.The lamp rail is provided either with recesses on the sides or with a metal part attached to the top, which is intended to fulfil the function of a suspension means which, when the parts are assembled, interacts with a hook-shaped extension of the U-shaped spring element.

[0007] The present invention is based on the object of providing an arrangement with a retaining spring that at least partially eliminates at least one of the disadvantages of such arrangements. A further aspect of the invention is to provide a method for fixing a mounting body to a support rail that at least partially eliminates at least some of the disadvantages of such methods.

[0008] As a solution to at least one of the described objects, the invention proposes an arrangement with a retaining spring having the features according to claim 1. The retaining spring is intended for fixing a mounting body of a luminaire to a support rail of the luminaire. Preferably, the retaining spring is suitable for fixing the mounting body relative to the support rail by pressing the mounting body vertically against the support rail. This suitability relates to the mounting body having two mounting body side walls spaced apart from one another in a transverse direction and connected to one another via a mounting body base, on each of which a mounting body retaining anchor is provided, and to the support rail having two support rail side walls spaced apart from one another in the transverse direction, on each of which a support rail retaining anchor is provided.Preferably, each of the mounting body side walls integrally forms one of the mounting body retaining anchors, and preferably, each of the support rail side walls integrally forms one of the support rail retaining anchors. Preferably, the support rail and mounting body are each U-shaped, with the support rail side walls or the mounting body side walls forming the U-legs. Preferably, the mounting body retaining anchors and the support rail retaining anchors are provided on the inner sides of the mounting body side walls or support rail side walls, with the mounting body retaining anchors or the support rail retaining anchors in particular extending along the transverse direction towards the respectively opposite mounting body retaining anchor or support rail retaining anchor. Each of the support rail retaining anchors and the mounting body retaining anchor each serves the purpose of providing a counterpart for the retaining spring, on which the retaining spring can act in order to exert a force on the respective mounting body side wall orSupport rail side wall. Mounting body retaining anchors and support rail retaining anchors can, for example, be designed as a recess provided in the mounting body side wall or support rail side wall, for example as a recess formed by a punching, into which an associated holding section of the retaining spring can engage with its respective holding area. For example, the recess can also be designed as a hole into which the respective holding area of ​​the respective holding section of the retaining spring engages. It is important that the respective mounting body retaining anchor or support rail retaining anchor is each attached to the mounting body side wall orSupport rail side wall is provided, in particular is formed by this, so that through the interaction, in particular form-fitting engagement, whereby the respective holding area overlaps with the holding anchor assigned to it in a direction perpendicular to the vertical, of the holding area and support rail holding anchor or mounting body holding anchor in the fixing position, the described pressing forces can be applied by the retaining spring to the respective mounting body side wall and thus to the mounting body or the respective support rail side wall and thus to the support rail. Whenever a reference is made in the following description to a support rail projection or mounting body projection as well as a corresponding reference to a recess in a support rail side wall or in a mounting body side wall, this is always by way of example as a concrete example of a corresponding mounting body holding anchor orThe term "support rail retaining anchor" is to be understood as a representative of the general term "mounting body retaining anchor" or "support rail retaining anchor." Preferably, the support rail and the mounting body are each elongated in a longitudinal direction, wherein the longitudinal direction is perpendicular to the vertical and perpendicular to the transverse direction. According to the invention, the retaining spring has two holding sections opposite one another in the transverse direction. The retaining spring thus has two holding sections, each forming two spaced-apart transverse sections of the retaining spring, wherein the holding sections preferably extend over the same longitudinal extension region and vertical extension region.The holding sections thus lie opposite one another in the transverse direction, but in some embodiments according to the invention can also merge into one another along the transverse direction, so that the holding sections are at least partially spaced apart from one another in the transverse direction, wherein at least the holding regions of the first holding section are spaced apart in the transverse direction from the holding regions of the second holding section and lie opposite them, so that the holding regions of the first holding section lie on the other transverse side of the transverse center of the holding spring than the holding regions of the second holding section. The holding sections can each have preferred features, which are explained below in connection with the description of advantageous embodiments of the holding spring with reference to a holding section.Each of the two holding sections has a base region, a first holding region, and a second holding region, and a specific one of the holding sections is assigned to a specific mounting body side wall and a specific support rail side wall and, accordingly, also assigned to the respective support rail holding anchor and mounting body holding anchor. The holding regions are preferably designed as holding projections that extend transversely outward, i.e., away from the transverse center of the holding spring, from a vertically extending region of the respective holding section, via which they are connected to the base region.To fix the support rail to the mounting body in a fixing position, the retaining spring is designed to press the base region of each retaining section vertically downwards against a mounting body section, the first retaining region of each retaining section vertically upwards against the mounting body retaining anchor assigned to the respective retaining section, and the second retaining region of each retaining section vertically downwards against the respective support rail retaining anchor assigned to the respective retaining section. The retaining spring is thus designed to fix the mounting body and support rail to one another in the fixing position by the base regions, first retaining regions, and second retaining regions of the two retaining sections exerting the corresponding pressing forces with respect to the support rail and the mounting body.Preferably, the mounting body section against which the retaining spring presses vertically downwards with the base region of each retaining section in the fixing position is formed by the mounting body base, so that the retaining spring presses vertically downwards with the base region of each retaining section against the mounting body base in the fixing position. However, it is also conceivable for the mounting body section to be formed by a section of the mounting body that is not formed by the mounting body base, for example by at least one of the mounting body side walls, for example by at least one of the mounting body side walls having a projection or a recess, in particular a hole, into which the respective base region of the respective retaining section of the retaining spring can engage or with which this retaining region can interact.It is essential that the mounting body section and the base region are designed to correspond to one another so that the explained pressing force can be applied by the retaining spring to the mounting body. In one embodiment, the two holding sections are designed as separate components, wherein in the fixing position, each of the holding sections is fixed to the mounting body and the base region, first holding region, and second holding region of the respective holding section exert pressing forces as explained. In another embodiment, the retaining spring comprising both holding sections is designed as a one-piece component. In particular, the base regions of the two holding sections can merge into one another in the embodiment.In some embodiments, it is provided that, in the fixing position, the base regions of the holding sections are fastened to the mounting body by fixing means. These fixing means can be designed, for example, as sheet metal tabs provided integrally in the mounting body base, which press a section of the respective base region against the mounting body base, or can comprise, for example, separate elements such as screws or locking elements. According to the invention, each of the holding sections is formed by a continuous wire. Particularly preferably, the wire forming the respective holding section has a wire length of at least 100 mm, in particular at least 150 mm.Particularly preferably, each of the holding sections has a longitudinal extension in the longitudinal direction perpendicular to the transverse direction and the vertical direction of at least 40 mm, in particular at least 50 mm, and a vertical extension of at least 15 mm. Particularly preferably, the longitudinal extension of each holding section is between 40 mm and 200 mm, and the vertical extension is between 15 mm and 50 mm.

[0009] The invention offers significant advantages over the prior art. The inventors have recognized that the retaining spring can be manufactured in a particularly simple and cost-effective manner by forming the holding sections from a wire. Surprisingly, by forming the holding sections from a wire, despite the particularly simple manufacture, easy handling when fixing the mounting body to the support rail and when releasing the mounting body and support rail, and at the same time a sufficiently robust fixing of the mounting body relative to the support rail can be achieved. To realize the retaining spring with its essential fixing properties, it is therefore sufficient to shape a wire using appropriate forming processes such that the holding sections are formed. Particularly preferably, both holding sections are formed integrally from a single, continuous wire.In one embodiment, both holding sections are formed separately from one another, each by a continuous wire provided for the realization of the respective holding section, wherein particularly preferably in this embodiment both holding sections are formed identically. This can save manufacturing and storage costs. Particularly preferably, the wire has a cross-section between 2 mm 2< and 5 mm 2<. In one embodiment in which both holding sections are jointly formed by a continuous wire, the base regions of the two holding sections merge into one another, wherein the wire extends along the transverse direction at the transition between the two holding sections and wherein the first and second holding regions of the first holding section are spaced apart in the transverse direction from the first and second holding regions of the second holding section.Particularly preferably, in this embodiment, the wire runs parallel to the transverse direction in the section where the holding sections merge into one another. Particularly preferably, in an embodiment in which the two holding sections are formed jointly by a single continuous wire, the beginning and end of the wire are located in a transverse region of the holding spring that lies between the first and second holding regions of the first holding section and the first and second holding regions of the second holding section, preferably centrally therebetween.In one embodiment in which the holding sections are each manufactured as separate components and are each formed by a continuous wire, the wire extends at the transverse end of the respective holding section that is closest to the respective opposite holding section over a longitudinal extension region, in particular parallel to the longitudinal direction, wherein the longitudinal extension region amounts to at least 50%, in particular at least 80% of the longitudinal extension length of the retaining spring. In the fixing position, the two holding sections preferably lie adjacent to one another, in particular parallel to one another, with their mutually facing transverse ends, in which the wire runs along the longitudinal direction, and are preferably connected to the mounting body at these transverse ends, for example by sheet metal tabs provided in the mounting body base.The inventors have recognized that by manufacturing the holding sections from a continuous wire, a robust spring-elastic property of the holding sections can be realized, which can be specifically tailored to the force ratios and geometric conditions required for fixing the mounting body and support rail of a luminaire.

[0010] According to the invention, at least one of the holding sections comprises an actuating region. Preferably, each of the holding sections comprises an actuating region, wherein, in particular, the actuating regions can each be designed according to the properties set out below, in particular, they can be designed identically. The actuating region or an actuating element fixed to the actuating region, which is enclosed by the retaining spring, preferably projects in the transverse direction on the transverse side of the holding section facing away from the opposite holding section beyond the holding regions and the base region of the holding region. Preferably, the actuating region forms a transverse end of the holding section. Preferably, the base region is formed by precisely the section of the wire,which projects in the transverse direction on the transverse side facing away from the opposite holding section beyond the holding areas and the base area. Preferably, the actuating area is arranged vertically exclusively below the holding areas. Preferably, the actuating area merges directly into the base area of ​​the holding section, wherein the actuating area ends at the transverse height of the holding areas and the base area begins at the height of the holding areas or of the holding area that projects furthest in the transverse direction and extends from there to the opposite holding section and thus to the transverse center of the holding spring. Particularly preferably, the actuating area projects in the fixing position of the arrangement of mounting body, support rail and retaining spring in the transverse direction beyond both the support rail and the mounting body. Particularly preferred is the above-explained,The section of the wire projecting in the transverse direction beyond both holding regions of the holding section is identical to the actuation region of the holding section. Particularly preferably, the actuation region comprises a U-shaped section of the wire forming the holding section, which projects beyond the two holding regions of the holding section on the transverse side facing away from the opposite holding section, and whose U-shaped base forms part of the transverse side facing away from the opposite holding section, and whose U-shaped legs extend from the transverse side to the opposite holding section, wherein the base region comprises at least one further U-shaped section of the wire forming the holding section, whose U-shaped base points in the transverse direction toward the opposite holding section.wherein one U-leg of the section of the wire encompassed by the actuating region merges into a U-leg of the section of the wire encompassed by the base region, and wherein the other leg of the U-shaped section of the wire encompassed by the actuating region or of the U-shaped section of the wire encompassed by the base region merges into a vertically upwardly extending section of the wire, wherein the wire, in its further course, the direction of which is defined by the transition from the U-leg to the vertically upwardly extending section of the wire, forms at least a partial area of ​​at least one of the two holding areas, in particular first forms a partial area of ​​the first holding area and, in its further course, forms a partial area of ​​the second holding area. According to the invention, the actuating region, the base region, and the holding areas of the holding section are designed to correspond to one another in such a way thatthat upon deflection of the actuating region, starting from the fixing position along the transverse direction toward the opposite holding section, an elastic twist and thus a torsion of the wire and / or an elastic bending of the wire forming the holding section occurs. The fixing position is determined in such a way that the position of the retaining spring is taken into account, which it occupies in the fixing position when it fixes the mounting body and the support rail to each other as intended. Particularly preferably, the actuating region, base region, and the holding regions of the holding region are designed to correspond to each other in such a way that upon deflection of the actuating region along the transverse direction, starting from a rest position of the retaining spring, in which it is fixed with its base regions to a plane and otherwise no external forces act on the retaining spring,an elastic twisting and / or elastic bending of the wire forming the holding section occurs towards the transverse side of the retaining spring facing away from the actuating region of the holding section. The provision of the actuating region, in particular with the described preferably provided properties, enables simple actuation of the retaining spring starting from the fixing position, so that by actuating the actuating region, the overlap between the holding regions and the associated holding anchors can be reduced at least to such an extent that the mounting body can be released from the support rail. Preferably, by actuating the actuating region and thus moving the actuating region exclusively along the transverse direction starting from the fixing position, the position of the holding regions of the holding sections can be changed in such a way thatthat the mounting body can be released from the support rail. According to the invention, the actuating region, the base region, and the holding regions of the holding section are configured to correspond to one another in such a way that, by actuating the actuating region along the transverse direction, starting from the fixing position, the second holding region of the holding section can be released from the support rail holding anchor, so that the support rail holding anchor and the second holding region no longer overlap in the transverse direction, while the first holding region continues to overlap with the mounting body holding anchor in the transverse direction and presses against it from below. In this particularly preferred embodiment, starting from the fixing position, by actuating the actuating region, the mounting body can be released from the support rail without the retaining spring being released from the mounting body, i.e., the retaining spring remains fixed to the mounting body.wherein, to maintain the fixation of the retaining spring to the mounting body, the base portion presses downwards against the mounting body and the first holding portion presses upwards against the mounting body retaining anchor.

[0011] In one embodiment, the actuating region, the base region, and the holding regions of the holding section are configured to correspond to one another in such a way that the deflection of the actuating region can be carried out at least up to a release position in which the second holding region is released from the support rail holding anchor assigned to it, while the first holding region continues to press against the assigned mounting body holding anchor and the base region continues to press against the mounting body section. Preferably, during the execution of the deflection up to the release position, the bending and / or twisting is continuously elastic, so that the deflection can be carried out by exerting an external force along the transverse direction on the actuating region until the release position is reached, wherein after this external force is removed, the retaining spring automatically returns to the shape it held in the fixing position.

[0012] In one embodiment, the actuating region transitions directly into the base region via a wire path along the transverse direction, so that no holding region or other region of the holding section assigned a different function lies within the wire path from the actuating region to the base region. Particularly preferably, the base region transitions, as the wire continues in the same direction along the wire, first into a portion of the first holding region and then into a portion of the second holding region.Particularly preferably, the wire runs essentially vertically at the transition from the partial region of the first holding region to the partial region of the second holding region, in particular it runs over 50% of the wire length between the holding points at which, in the fixing position, a pressing force is applied between the respective holding regions and the mounting body or support rail holding anchors assigned to the respective holding region, at an angle of less than 20°, in particular of less than 10°, in particular parallel to the vertical, whereby this particularly preferably applies for a wire length of more than 70% of the wire length between the said holding points. By appropriately designing the actuating region in relation to the base region, a particularly compact and functionally advantageous design of the retaining spring can be ensured.

[0013] In one embodiment, the first holding region of at least one of the holding sections comprises a first and a second sub-region, which are spaced apart from one another along the longitudinal direction, wherein the second holding region is arranged at least partially, in particular completely, between the two sub-regions of the first holding region. Particularly preferably, the actuation region is arranged at least partially, in particular completely, between the two sub-regions of the first holding region.By the first holding area comprising two partial areas, between which the second holding area and in particular the actuating area is arranged, it can be particularly advantageously ensured that the retaining spring, starting from the fixing position on the mounting body, can remain fixed to the mounting body by the interaction of the first holding area with the mounting body holding anchor assigned to it, while by actuating the actuating area the second holding area can be released from the mounting rail holding anchor assigned to it.

[0014] In one embodiment, the second holding region of at least one of the holding sections comprises a first and a second sub-region, which are spaced apart from one another along the longitudinal direction. Particularly preferably, the actuating region is arranged at least partially, in particular with more than 50% of its longitudinal extent, in particular completely, between the two sub-regions of the second holding region. The provision of two sub-regions of the second holding region and two sub-regions of the first holding region can particularly advantageously contribute to the retaining spring being able to ensure particularly stable fixation of a mounting body relative to a support rail. Furthermore, the provision of the actuating region between the two sub-regions of the second holding region can ensure particularly good detachability of the mounting body and support rail fixed to one another via the retaining spring.In particular, this arrangement can also particularly enhance the stability of the retaining spring. Particularly preferably, the two subregions of the second retaining region are arranged between the two subregions of the first retaining region. Particularly preferably, the two subregions of the second retaining region are spaced apart from the two subregions of the first retaining region along the longitudinal direction and are arranged between these two subregions of the first retaining region. Particularly preferably, the first subregion of the second retaining region is spaced apart from the first subregion of the first retaining region by substantially the same distance as the second subregion of the second retaining region is from the second subregion of the first retaining region.

[0015] In one embodiment, the first holding region comprises a third and a fourth sub-region, which are arranged in the longitudinal direction between the first and the second sub-region of the first holding region. Particularly preferably, the first sub-region of the second sub-region is spaced apart from the third sub-region of the first holding region by less than 5 mm along the longitudinal direction and / or the second sub-region of the second holding region is spaced apart from the fourth sub-region of the first holding region by less than 5 mm along the longitudinal direction, wherein the distance between the first sub-region of the second holding region and the third sub-region of the first holding region is particularly preferably identical to the distance between the second sub-region of the second holding region and the fourth sub-region of the first holding region.By providing third and fourth subregions of the first holding region and in particular by arranging subregions of the first holding region close to subregions of the second subregion, the stability of the retaining spring and thus the suitability of the retaining spring for robustly fixing the mounting body and support rail to one another can be particularly enhanced. Particularly preferably, a connecting region of the wire forming the holding section is provided between the first subregion of the second holding region and the third subregion of the first holding region and / or between the second subregion of the second holding region and the fourth subregion of the first holding region, which connecting region runs essentially along the vertical, in particular is tilted by less than 20°, in particular by less than 10° to the vertical, in particular runs parallel to the vertical. This can particularly preferably contribute to the stability of the retaining spring.

[0016] In one embodiment, the second holding region comprises a third and a fourth sub-region, wherein the first and the second sub-region of the second holding region are arranged along the longitudinal direction between the third and the fourth sub-region of the second holding region. Particularly preferably, the first and the second sub-region of the second holding region are spaced less far from the actuating region along the transverse direction than the third and the fourth sub-region of the second holding region. In other words, in the advantageous embodiment, the first and the second sub-region of the second holding region protrude along the transverse direction beyond the third and the fourth sub-region of the second holding region in the direction of the transverse end of the holding section, toward which the actuating region protrudes beyond the holding regions of the holding section.The first and second subregions of the second holding region thus extend further outward from the transverse center of the retaining spring along the transverse direction than the third and fourth subregions of the second holding region. Particularly preferably, in the fixing position, the first and second subregions of the second holding region overlap with the support rail retaining anchor over a greater extent along the transverse direction than the third and fourth subregions of the second holding section, so that, starting from the fixing position, in order to release the mounting body and support rail from one another, the first and second subregions of the second holding region must be moved further along the transverse direction than the third and fourth subregions of the second holding section.The inventors have recognized that the provision of several sub-regions of the second holding section enables a particularly stable fixation of the mounting body and the support rail by means of the retaining spring, wherein the provision of different transverse overlaps of the various sub-regions can ensure that, on the one hand, the largest possible transverse overlap of the second holding region with the associated support rail holding anchor can be achieved and, on the other hand, the detachability can still be maintained.

[0017] In one embodiment, the base region comprises at least one central and two outer subregions as three subregions spaced apart from one another along the longitudinal direction. Particularly preferably, the first and second holding regions are each located between the two outer subregions of the base region. Particularly preferably, the central subregion of the base region lies within the longitudinal extent of the first and within the longitudinal extent of the second holding region. Particularly preferably, the central subregion lies in the longitudinal center of the first and / or second holding regions. Particularly preferably, the outer subregions of the base region form the longitudinal ends of the holding section.As mentioned above, the two holding sections of the holding spring can each have the features described in the various preferred embodiments, wherein the two holding sections particularly preferably each comprise a base region with a central and two outer sub-regions, wherein the outer sub-regions of the base regions of the holding sections form the longitudinal ends of the holding spring. Particularly preferably, the wire runs from the central sub-region of the base region in its respective directional course to the two outer sub-regions of the base region after formation of a sub-section of the second holding region, initially vertically above this sub-section of the second holding region and both along the longitudinal direction and along the transverse direction, before forming the respective outer sub-region of the base region.In this case, it is important to note that in the preferred embodiment, the base region has a central sub-region, wherein the wire runs from the central sub-region on the one hand with its wire path in the direction of the first of the two outer sub-regions and on the other hand with its wire path starting from the central sub-region in the direction of the second of the two outer sub-regions.During this wire path, starting from the central sub-region to the two outer sub-regions of the base region, the wire runs to form a sub-section of the second holding region, wherein in its respective wire path, after formation of the sub-section of the second holding region, it preferably initially runs vertically above this sub-section of the second holding region and thereby runs both along the longitudinal direction and along the transverse direction, wherein in its further respective wire path it forms into the respective outer sub-regions of the base region. Particularly preferably, in its wire path, the wire runs vertically above said sub-section of the second holding region, initially vertically upwards and then vertically downwards, while simultaneously running both along the longitudinal direction and along the transverse direction.The aforementioned subsection of the second holding region can, in particular, be formed by one of the above-explained subsections of the second holding region, in particular, be identical to one of these subsections of the second holding region. In particular, the subsection formed by the wire in its directional extension toward a first of the outer subsections can comprise the first subsection of the second holding region, and the subsection formed by the wire in its directional extension toward a second of the outer subsections can comprise the second subsection of the second holding section.

[0018] In one embodiment, both holding sections are formed jointly by a single continuous wire, so that they are manufactured integrally connected to one another. In one embodiment, each of the holding sections is formed by a separate wire, wherein the holding sections are preferably firmly connected to one another in the fixing position by partial sections of their base regions. Preferably, the respective partial section of the respective base region can be formed by one of the above-explained partial sections of the respective base region, in particular can be formed identically to such a partial section.When explaining the retaining spring with its intended functions and properties, the focus is on the interaction of the two holding sections, which do not necessarily have to be firmly connected to one another for this purpose, but are at least arranged next to one another in the transverse direction, in particular are arranged such that their holding regions are arranged on two transverse sides of the retaining spring facing away from one another and in particular their actuating regions form two opposite transverse ends of the retaining spring.

[0019] The invention relates to an arrangement comprising a retaining spring, a support rail, and a mounting body. The mounting body and the support rail can be designed as explained above, in particular as explained above with regard to generic retaining spring assemblies, wherein it is generally pointed out at this point that the retaining spring and the arrangement according to the invention can have features described above in connection with generic retaining springs or generic assemblies. The mounting body has two mounting body side walls which are spaced apart from one another in a transverse direction and connected to one another via a mounting body base, on each of which a mounting body retaining anchor is provided. The support rail has two support rail side walls which are spaced apart from one another in the transverse direction, on each of which a support rail retaining anchor is provided.In a fixing position of the assembly, the support rail is fixed relative to the mounting body by the retaining spring, with the base region of each retaining section pressing vertically downward against a mounting body section, the first retaining section pressing vertically upward against one of the mounting body projections, and the second retaining section pressing vertically downward against one of the support rail retaining anchors. The fixing position defines a specific position of the support rail, mounting body, and retaining spring of the assembly relative to one another.Particularly preferably, at least one recess is provided in each of the mounting body side walls, through which the wire end forming the respective holding section extends, wherein the actuating region of the respective holding section protrudes in the transverse direction on the outside of the respective mounting body side wall, whereby reference is naturally made to the fixing position. Particularly preferably, the wire forming the respective holding section presses upwards against a vertical boundary of the recess in the mounting body in the fixing position. This allows for a particularly good hold of the retaining spring on the mounting body, in particular also during actuation of the actuating region.

[0020] The invention further relates to a luminaire comprising an arrangement according to the invention. The luminaire comprises a circuit board with LEDs, which is attached to the mounting body, preferably on the vertical side of the mounting body base facing away from the support rail. The luminaire can comprise other typical luminaire components, for example, an operating device, a power rail, etc.

[0021] The invention further relates to a method for fixing a mounting body to a support rail. The mounting body has two mounting body side walls spaced apart from one another in a transverse direction and connected to one another via a mounting body base. A mounting body retaining anchor is provided on each of the mounting body side walls. The support rail has two support rail side walls spaced apart from one another in the transverse direction, which are preferably connected to one another via a support rail base. A support rail retaining anchor is provided on each of the support rail side walls.In a first method step, a retaining spring having two holding sections opposite one another in a transverse direction, each formed by a continuous wire, is fixed to the mounting body by pressing a base region of each holding section vertically downward against a mounting body section and a first holding region of each holding section vertically upward against one of the mounting body holding anchors. In a second method step, the mounting body, together with the retaining spring, is moved vertically toward the support rail until the holding sections, each with a second holding region encompassed by them, are arranged vertically above one of the support rail holding anchors assigned to the respective holding section and press downward against one of the support rail holding anchors.As a result, the support rail is pressed vertically against the mounting body, so that the mounting body is held vertically pressed against the support rail. In a third method step following the second method step, an actuating region encompassed by one of the holding sections is actuated along the transverse direction towards the opposite holding section, and in the process the wire forming the holding section is elastically twisted and / or elastically bent, and as a result the second holding region of the holding section (10) is released from the support rail holding anchor, so that the support rail holding anchor and the second holding region no longer overlap in the transverse direction, while the first holding region continues to overlap with the mounting body holding anchor in the transverse direction and presses against it from below.The method according to the invention and the arrangement according to the invention can have further features which are apparent to the person skilled in the art from the explanation of generic retaining springs and arrangements as well as retaining springs and arrangements according to the invention.

[0022] The invention is explained in more detail below with reference to five figures using exemplary embodiments.

[0023] They show: Figure 1: in a schematic principle representation, a perspective view of a first embodiment of a retaining spring of an arrangement according to the invention; Figure 2: in schematic principle representations, a perspective view and a transverse view of a holding section of a second embodiment of a retaining spring of an arrangement according to the invention; Figure 3: in a schematic principle representation, a perspective view of components of an embodiment of an arrangement according to the invention with the retaining spring according to Figure 1; Figure 4: in a schematic principle representation, a perspective view of components of the embodiment according to Figure 3 ; Figure 5: in a schematic principle representation a cross-sectional view of components of the embodiment according to Figure 3 .

[0024] In Figure 1 A schematic diagram of a perspective view of an embodiment of a retaining spring 1 is shown. The retaining spring 1 is made in one piece from a single, continuous wire 2, which forms both retaining sections 10 of the retaining spring 1. The retaining sections 10 are each identically designed. For the sake of simplicity, Figure 1Only one of the two holding sections 10 is identified by reference numerals to identify its regions. Each of the holding sections 10 has a base region 6 with subregions 61, 63, 64 of the base region 6, as well as a first holding region with subregions 31, 32, 33, 34 of the first holding region, as well as a second holding region with subregions 41, 42, 43, 44 of the second holding region, and an actuating region 5 with subregions 51, 52 of the actuating region 5. The two holding sections 10 are connected to one another in that the base regions 6 of the two holding sections 10 merge into one another along the transverse direction Y. The first holding region of each holding section 10 has two outer subregions 31, 32 and two inner subregions 33, 34, which in the fixing position, which for example is in the Figures 4 and 5 shown, from below against a mounting body retaining anchor, which is located in the Figures 3 to 5shown embodiment is designed as a mounting body projection 201. The second holding area of ​​each holding section 10 has two outer partial areas 43, 44 and two inner partial areas 41, 42, which in the fixing position, for example in the Figures 4 and 5 shown, press from above against a support rail retaining anchor, which is located in the Figures 3 to 5shown embodiment is designed as a support rail projection 101. The inner partial regions 41, 42 of the second holding region, and thus a section of the second holding region, are arranged between the outer, namely the first and second partial regions 31, 32 of the first holding region. The third and fourth partial regions 43, 44 of the second holding region are each offset only along the vertical Z, namely arranged above the first and second partial regions 31, 32 of the first holding region. The actuating region 5 is in any case arranged in sections between the first and second partial regions 41, 42 of the second holding region and the third and fourth partial regions 33, 34 of the first holding region and thus, of course, also between the first and second partial regions 31, 32 of the first holding region and the third and fourth partial regions 43, 44 of the second holding region. The inner partial regions 41, 42, iefirst and second partial areas 41, 42 of the second holding area project in the transverse direction Y beyond the outer, namely third and fourth partial areas 43, 44 of the second holding area and are arranged closer to the actuating area 5 than the third and fourth partial areas 43, 44 of the second holding area, which is generally advantageous according to the invention.

[0025] As from Figure 1 As can be easily seen, the design of the retaining spring enables a robust fixation of a mounting body 200 relative to a support rail due to the considerable transverse extension of at least the first and second partial areas 41, 42 of the second retaining area, as shown in the Figures 4 and 5 shown as an example, and due to the relative arrangement of the holding areas, the base area 6 and the actuating area 5 to each other, a simple detachability starting from the Figures 4 and 5exemplified fixing position of an embodiment according to the invention. This is particularly contributed to by the fact that the actuating region 5 comprises two U-shaped sections 51, 52 of the wire 2, wherein a U-leg of the U-shaped section 61 of the actuating region 6 is arranged on each of the U-legs of the U-shaped sections 51, 52, so that the U-shaped sections merge into one another, and that the respective other U-legs of the U-shaped sections 51, 52 extend upwards outside the actuating region 5 in the respective further course of the wire 2 along the vertical Z and initially form third and fourth partial regions 33, 34 of the first holding region and in their further course continue vertically upwards and form the first and second partial regions 41, 42 of the second holding region, which is generally advantageous according to the invention. As can be seen from Figure 1As can be seen, the wire 2, in its further wire path or directional path after formation of the partial area 41 or 42 of the second holding area, initially runs vertically above the respective partial area 41, 42 and thereby both along the longitudinal direction X and along the transverse direction Y, initially running vertically upwards and then vertically downwards. This is particularly advantageous for the elastic deflectability and easy release of the retaining spring 1, since it ensures in a particularly suitable manner that, starting from the fixing position, upon deflection of the actuating area 5 along the transverse direction Y toward the opposite holding section 10, a twisting and bending of the wire 2 can take place elastically such that the partial areas 41, 42, 43, 44 can be reversibly released from the support rail retaining anchor. Figure 1It can also be seen that the base region 6 comprises a central partial region 61 and two outer partial regions 63, 64 which form the transverse ends of the retaining spring 1, wherein the central partial region 61 is provided approximately in the middle of the longitudinal extent of the retaining regions of the retaining section 10.

[0026] In Figure 2 A holding section 10 of a further embodiment of a holding spring 1 is shown in schematic principle representations. Figure 2 includes Figure 2a and Figure 2b , where Figure 2a a perspective view, in Figure 2b a transverse view, ie a view along the longitudinal direction X of the holding section 10 is shown. Figure 2In the embodiment of a retaining spring 1 according to the invention, which is schematically sketched with reference to a retaining section 10, its two retaining sections 10 are arranged next to one another in the transverse direction Y, while its base regions 160 with sections in the transverse direction Y are arranged directly next to one another and abut one another. In the present case, these are the sections of the respective base region 160 of the retaining sections 10 that run parallel to the longitudinal direction X and form a transverse end of the respective retaining section 10, as can be seen from Figure 2a To realize the retaining spring 1 by means of the two retaining sections, these two retaining sections 10 are placed next to each other along the transverse direction Y so that they extend over the same longitudinal extension area X. Figure 2 comprehensively the Figures 2a and 2bIt can be seen that each of the holding sections 10 is made of a continuous wire 102 and comprises a first and a second holding region, wherein the first holding region comprises a first, second, third and fourth partial region 131, 132, 133, 134 and wherein the second holding region comprises a first and a second partial region 141, 142. The actuating region 150 has a U-shaped section 151 of the wire 102, the two U-legs of which each merge into a U-leg of a U-shaped part 161, 162 of the base region 160, wherein the respective other U-legs of the U-shaped parts 161, 162 of the base region 160 merge into a vertically upwardly running section of the wire 102, wherein in the further course of the wire, starting from the respective U-leg of the respective U-shaped section 161, 162, the wire 102 runs upwards and first the third or fourth partial region 133, 134 of the first holding region and then the first or fourth partial region 134.second partial area 141, 142 of the second holding area and then runs above the respective partial area 141, 142 of the second holding area, as is also analogous to . Figure 1 described.

[0027] In the Figures 3 , 4 and 5 In various top views, elements of an embodiment of an arrangement according to the invention are shown in their relative position to one another, in which they are in the fixing position of the arrangement, wherein in the arrangement a retaining spring 1 according to the embodiment according to Figure 1 is applied. The Figures 3 to 5 are explained together below. Figures 3 to 5It can be seen that the actuating area 5 of each holding section 10 extends in the transverse direction Y beyond the mounting body 200 and the support rail 100, so that the retaining spring 1 can be actuated via the actuating areas 5 of the holding sections 10 starting from the fixing position in such a way that by actuating the actuating areas 5 by moving them along the transverse direction Y towards the respective opposite holding section 10, ie towards the transverse center of the retaining spring 1, the second holding area of ​​the holding sections 10 can be released from the respective associated support rail projection 101 to release the mounting body 200 from the support rail 100. From the Figures 3 to 5It is further apparent that both the support rail 100 and the mounting body 200 each have a U-shaped cross section perpendicular to the longitudinal direction X, which is generally advantageous according to the invention, wherein the support rail projections 101 and the mounting body projections 201 are each formed by the mounting body side walls or support rail side walls, respectively, in that the mounting body side walls or support rail side walls are deformed at their vertical ends in such a way that they form a corresponding mounting body projection 201 or support rail projection 101. In particular from Figure 4It is further apparent that the mounting body side walls are connected to one another by a mounting body base 202, and similarly, the support rail side walls are connected to one another by a support rail base. The support rail side walls thus form the U-legs of the U-shape of the support rail, and the mounting body side walls form the U-legs of the U-shape of the mounting body 200. From the Figures 3 to 5It is further apparent that the first and second partial areas 41, 42 of the second holding area extend in the transverse direction Y beyond the third and fourth partial areas 43, 44 of the second holding area, so that in order to release from the fixing position, the first and second partial areas 41, 42 must be moved further along the transverse direction Y than the third and fourth partial areas 43, 44. This is particularly advantageous in the described embodiment in that the actuating area 5, via which the holding spring 1 can be actuated from the fixing position, is arranged in the immediate vicinity of the first and second partial areas 41, 42 of the second holding area, so that upon actuation, ieMovement of the respective actuating region 5 along the transverse direction Y in a simple manner, the second holding region can be completely released from the respective support rail projection 101 assigned to it, while the retaining spring 1 remains fixed unchanged to the mounting body 200, in that the respective first holding regions each press against the mounting body projection 201 assigned to them from below and the base region 6 presses from above against a mounting body section formed by the mounting body base 202. List of reference symbols

[0028] 1Retaining spring 2Wire 5Actuating area 6Base area 10Holding section 31First sub-area of ​​the first holding area 32Second sub-area of ​​the first holding area 33Third sub-area of ​​the first holding area 34Fourth sub-area of ​​the first holding area 41First sub-area of ​​the second holding area 42Second sub-area of ​​the second holding area 43Third sub-area of ​​the second holding area 44Fourth sub-area of ​​the second holding area 51Sub-area of ​​the actuating area 52Sub-area of ​​the actuating area 61Middle sub-area of ​​the base area 62Sub-area of ​​the base area 63Outer sub-area of ​​the base area 64Outer sub-area of ​​the base area 101Support rail projection 102Wire 131First sub-area of ​​the first holding area 132Second sub-area of ​​the first holding area 133Third sub-area of ​​the first holding area 134Fourth Partial area of ​​the first holding area 141First partial area of ​​the second holding area 142Second partial area of ​​the second holding area150Operating area 151U-shaped section 160Base area 161U-shaped section 162U-shaped section 200Mounting body 201Mounting body projection 202Mounting body bottom XLongitudinal direction YTransverse direction ZVertical

Claims

1. Arrangement comprising a retaining spring (1) for fixing a mounting body (200) of a luminaire to a mounting rail of the luminaire, wherein the mounting body (200) and the mounting rail are each designed elongate in a longitudinal direction (X) and the arrangement comprises the mounting body (200) and the mounting rail, wherein the mounting body (200) has two mounting body sidewalls spaced from each other in a transverse direction (Y) perpendicular to the longitudinal direction (X) and connected to each other via a mounting body base (202), on which mounting body sidewalls a first mounting body fixing anchor is respectively provided which is designed in particular as a mounting body projection (201), and wherein the mounting rail has two mounting rail sidewalls spaced from each other in the transverse direction (Y), on which mounting rail sidewalls a mounting rail fixing anchor is respectively provided which is designed in particular as a mounting rail projection (101), wherein the mounting rail has a cross section perpendicular to the longitudinal (X) which is open at one vertical end along a vertical direction (Z) perpendicular to the longitudinal direction (X) and to the transverse direction (Y) and which is bounded along the transverse direction (Y) by two mounting rail sidewalls which are connected to each other by a mounting rail base extending along the transverse direction (Y) and which extend vertically away from the mounting rail base, wherein the retaining spring (1) has two retaining sections (10) opposite each other in the transverse direction (Y), wherein in the fixing position of the arrangement, in which the mounting body (200) is disposed at the open vertical end of the mounting rail so that the mounting body (200) together with the mounting rail forms an interior space that is circumferentially closed perpendicular to the longitudinal direction (X) by the mounting rail and the mounting body, the mounting rail is fixed relative to the mounting body (200) by the retaining spring (1) in that the retaining spring (1) presses with a base portion (160) of each holding section (10) vertically downwards against a mounting body section that is formed in particular by the mounting body base (202), presses with a first retaining portion of each holding section vertically upwards against one of the mounting body fixing anchors (201) and presses with a second holding portion of each holding section (10) vertically downwards against a mounting rail fixing anchor (201), characterized in that each of the holding sections (10) is formed by a continuous wire (102), wherein in particular the wire (102) which forms the respective retaining section (10) has a wire length of at least 100 mm and in particular each of the retaining sections (10) has a longitudinal extent of at least 40 mm in a longitudinal direction (X) perpendicular to the transverse direction (Y) and perpendicular to the vertical (Z) and has a vertical extent of at least 15 mm, wherein at least one of the retaining sections (10) has an actuating portion (5, 150) and the actuating portion (5, 150), the base portion (6, 160) and the retaining portions of the retaining section (10) are designed to correspond to each other in such a way that the wire (2, 102) forming the retaining section (10) is elastically twisted and / or elastically bent when the actuating portion (5, 150) is deflected along the transverse direction (Y) from the fixing position towards the opposite retaining section (10), and are designed to correspond to each other in such a way that the second retaining portion of the retaining section (10) can be released from the mounting rail fixing anchor by actuating the actuating portion along the transverse direction (Y), starting from the fixing position, so that the mounting rail fixing anchor and the second holding portion do no longer overlap in the transverse direction (Y), while the first retaining portion continues to overlap with the mounting body fixing anchor in the transverse direction (Y) and presses against the latter from below.

2. Arrangement according to claim 1, characterized in that the actuating portion (5, 150) protrudes over the retaining portions and the base portion (6, 160) of the retaining section (10) in the transverse direction (Y) on the transverse side facing away from the opposite retaining section (10) and / or is arranged within a range of the longitudinal extent of the first and / or the second retaining portion.

3. Arrangement according to claim 2, characterized in that the actuating portion (5, 150), the base portion (6, 160) and the retaining portions of the retaining section (10) are designed corresponding to each other in such a way that the deflection can be performed at least up to a release position in which the second retaining portion is released from its associated mounting rail fixing anchor (101), while the first retaining portion continues to press against the associated mounting body fixing anchor (201) and the base portion (6, 160) continues to press against the mounting body section (202), wherein in particular the bending and / or twisting is elastic all the way during performing the deflection up to the release position.

4. Arrangement according to any one of claims 2 or 3, characterized in that the actuating portion (5, 150) directly passes into the base portion (6, 160) over a course of the wire (2, 102) along the transverse direction (Y), wherein in the further course of the wire (2, 102) in the same direction along the wire (2, 102) the base portion (6, 160) first passes into a sub-portion (31, 32, 33, 34) of the first retaining portion and then into a sub-portion of the second retaining portion (41, 42, 43, 44), wherein the wire (2, 102) runs substantially vertically at a transition from the first sub-portion (31, 32, 33, 34) of the first retaining portion to the sub-portion (41, 42, 43, 44) of the second retaining portion.

5. Arrangement according to any one of claims 2 to 4, characterized in that a recess is respectively provided in the mounting body sidewalls through which the wire (2, 102) forming the respective retaining section (10) extends, wherein on the outside of the respective mounting body sidewall a respective actuating portion (5, 150) of the respective retaining section (10) protrudes in the transverse direction (Y), wherein in particular the wire (2, 102) presses upwards against a vertical boundary of the recess of the mounting body (200) in the fixing position.

6. Arrangement according to any one of the preceding claims, characterized in that the first retaining portion of at least one of the retaining sections (10) comprises a first and a second sub-portion (31, 32) which are spaced from each other along the longitudinal direction (X), wherein the second retaining portion is at least partially arranged between the two sub-portions (31, 32) of the first retaining portion, wherein in particular the actuating portion (5, 150) is arranged between the two sub-portions (31, 32) of the first retaining portion.

7. Arrangement according to any one of the preceding claims, characterized in that the second retaining portion of at least one of the retaining sections (10) comprises a first and a second sub-portion (41, 42) which are spaced from each other along the longitudinal direction (X), wherein in particular the actuating portion (5, 150) is arranged between the two sub-portions (41, 42) of the second retaining portion.

8. Arrangement according to any one of claims 6 and 7, characterized in that the two sub-portions (41, 42) of the second retaining portion are arranged between the two sub-portions (31, 32) of the first retaining portion.

9. Arrangement according to any one of claims 6 to 8, characterized in that the first retaining portion comprises a third and a fourth sub-portion (33, 34) which are arranged in the longitudinal direction (X) between the first and the second sub-portions (31, 32) of the first retaining portion, wherein in particular the first sub-portion (41) of the second retaining portion is spaced from the third sub-portion (33) of the first retaining portion along the longitudinal direction (X) by less than 5 mm and / or the second sub-portion (42) of the second retaining portion is spaced from the fourth sub-portion (34) of the first retaining portion along the longitudinal direction (X) by less than 5 mm, wherein in particular a connecting portion of the wire (2, 102) forming the retaining portion runs between the first sub-portion (41) of the second retaining portion and the third sub-portion (33) of the first retaining portion and / or between the second sub-portion (42) of the second retaining portion and the fourth sub-portion (34) of the first retaining portion along the vertical (Z).

10. Arrangement according to any one of claims 7 to 9, characterized in that the second retaining portion comprises a third and a fourth sub-portion (43, 44), wherein the first and the second sub-portion (41, 42) of the second retaining portion are arranged in the longitudinal direction (X) between the third and the fourth sub-portion (43, 44) of the second retaining portion, wherein in particular the first and the second sub-portion (41, 42) of the second retaining portion extend farther outwards from the transverse center of the retaining spring (1) along the transverse direction (Y) than the third and the fourth sub-portion (43, 44) of the second retaining portion, wherein in particular in the fixing position the first and the second sub-portion (41, 42) of the second retaining portion overlap with the mounting rail fixing anchor (101) over a greater distance along the transverse direction (Y) than the third and the fourth sub-portion (43, 44) of the second retaining portion.

11. Arrangement according to any one of the preceding claims, characterized in that the base portion (6, 160) comprises at least one central and two outer sub-portions (61, 63, 64) as three sub-portions spaced from each other along the longitudinal direction (X), wherein the first and the second retaining portion are located between the two outer sub-portions (63, 64) of the base portion (6, 160) and the central sub-portion (61) is located within the longitudinal extent of the first and the second retaining portion, wherein in particular the central sub-portion (61) is located in the longitudinal center of the first and the second retaining portion and / or the outer sub-portions (63, 64) of the base portion (6, 160) form the longitudinal ends of the retaining section (10).

12. Arrangement according to claim 11, characterized in that starting from the central sub-portion (61) of the base portion (6, 160), the wire (2, 102) in its respective directional course towards the two outer sub-portions (63, 64) of the base portion (6, 160), after forming a sub-section of the second holding portion, initially runs vertically above this sub-section of the second retaining portion and in this course both along the longitudinal direction (X) and the transverse direction (Y) before forming the respective outer sub-portion (63, 64) of the base portion (6, 160).

13. Arrangement according to any one of the preceding claims, characterized in that both retaining sections (10) are formed together by a single continuous wire (2, 102) or that each of the retaining sections (10) is formed by a separate wire (2, 102) and the retaining sections (10) in the fixing position are firmly connected to one another by sub-portions of their base portions (6, 160).

14. Method for fixing a mounting body (200) to a mounting rail, wherein the mounting body (200) has two mounting body sidewalls spaced from each other in a transverse direction (Y) and connected to each other via a mounting body base (202), on each of the mounting body sidewalls a mounting body fixing anchor designed in particular as a mounting body projection (201) is provided, and wherein the mounting rail has two mounting rail sidewalls spaced from each other in the transverse direction (Y), on each of the mounting rail sidewalls a mounting rail fixing anchor designed in particular as mounting rail projection (101) is provided, wherein in a first method step a retaining spring (1) having two retaining sections (10) opposite each other in a transverse direction (Y) and each formed by a continuous wire (2, 102) is fixed to the mounting body (200) by being pressed with a base portion (6, 160) of each holding section (10) vertically downwards against a mounting body section formed in particular by the mounting body base (202) and by being pressed with a first holding portion of each holding section vertically upwards against a mounting body fixing anchor (201), wherein in a second method step the mounting body (200) together with the retaining spring (1) is moved vertically towards the mounting rail until the holding sections (10) are each arranged with a second holding portion vertically above one of the mounting rail fixing anchors (101) assigned to the respective retaining section (10) and press downwards against one of the mounting rail fixing anchors (101), wherein in a third method step following the second method step an actuating portion (5, 150) comprised by one of the holding sections (10) is actuated along the transverse direction (Y) towards the opposite holding section (10) while the wire (2, 102) forming the holding section (10) is elastically twisted and / or elastically bent whereby the second holding portion of the holding section (10) is released from the mounting rail fixing anchor so that the mounting rail fixing anchor and the second holding portion do no longer overlap in the transverse direction (Y), while the first holding portion continues to overlap with the mounting body fixing anchor in the transverse direction (Y) and presses against the latter.