Mounting device for wall or ceiling lamps

Abstract

The invention relates to a mounting device (1) for wall or ceiling lamps (30), comprising a planar mounting plate (2) which has a plurality of openings (17, 19, 20, 22). In order to allow secure, simple, rapid and permanent mounting of wall or ceiling lamps, provision is made for the mounting plate (2) to be formed from a fiber-plastics composite (3) consisting of reinforcing fibers (5) and a plastics matrix (4), and for the mounting plate (2) to have at least three different mounting zones (11, 12, 13), wherein: a first mounting zone (11) is arranged in the region of an annular edge region (14) of the mounting plate (2), a second mounting zone (12) is arranged in the region of a center (15) of the mounting plate (2), and a third mounting zone (13) is arranged in an intermediate region (16) between the first mounting zone (11) and the second mounting zone (12); the mounting plate (2) has a plurality of first openings (17) in the region of the first mounting zone (11), has a central second opening (19) in the region of the second mounting zone (12), and has a plurality of third openings (20) in the region of the third mounting zone (13); and at least one third opening (20) has a radial slot (21).

Description

[0001] Mounting device for wall or ceiling lights

[0002] The invention relates to a mounting device for wall or ceiling lights, with a flat mounting plate which has several openings.

[0003] Mounting fixtures for wall or ceiling lights are designed to ensure a stable attachment of a wall or ceiling light to the ceiling of a room. The mounting fixture acts as an intermediate element between the structural ceiling of the room and the wall or ceiling light. Common mounting fixtures feature a flat mounting plate that is attached directly or indirectly to the ceiling using fastening screws. The wall or ceiling light can be detachably connected to the mounting plate using mounting screws.

[0004] US Pat. No. 2,906,488 A1 discloses a mounting device for ceiling lights comprising a mounting plate with first openings formed as elongated holes for connection to a ceiling mounting box. In the center of the circular mounting plate, a cross-shaped slot is provided for receiving a T-shaped metal mounting hook, from which a ceiling light can be suspended.

[0005] NL 1025015 A1 discloses a mounting device for ceiling luminaires with a metal mounting plate, which has first openings for receiving fastening screws and second openings for receiving mounting screws. The mounting plate can be connected to a ceiling recessed box embedded in the building's ceiling using the fastening screws. A connecting piece is attached to the mounting plate using the mounting screws. The ceiling luminaire is then connected to the connecting piece.

[0006] Metal mounting plates are mechanically stable and robust, but their electrical conductivity poses safety concerns and requires additional attention and precautions for cable entry points with sharp edges to prevent short circuits. In addition, fastening screws to a metal mounting plate requires counterparts for the screws, such as nuts.

[0007] Furthermore, it is also known to manufacture mounting plates from plastic, for example from polymers. However, these are generally not very resistant to aging and, due to constant embrittlement, are prone to spontaneous fractures under mechanical stress. US Pat. No. 11,435,072 B1 discloses a mounting box for ceiling lights, which has a circular base plate and a cover, with a toothed coil screwed to the base plate arranged between the base plate and the cover. The toothed coil is designed to accommodate an excess length of the ceiling light's power cable. The base plate has openings for screwing to the toothed coil and further openings for fastening to the building ceiling. The base plate is made of an electrically insulating material such as plastic, fiberglass, or a composite material.The material for the toothed coil is a non-conductive material such as heat-conducting plastic injection moldings, nylon and glass.

[0008] US 2008 / 0030999 A1 shows a support for a luminaire with a square mounting plate featuring a central opening for a cable and several fastening holes surrounding the opening. The mounting plate can be made of plastic, metal, ceramic, wood, and / or fiberglass.

[0009] The object of the invention is to enable safe, simple, quick and permanent installation of wall or ceiling lights.

[0010] According to the invention, this is achieved in that the mounting plate is formed from a fiber-plastic composite consisting of reinforcing fibers and a plastic matrix, and in that the mounting plate has at least three different mounting zones, wherein a first mounting zone is arranged in the region of an annular edge region of the mounting plate, a second mounting zone is arranged in the region of a center of the mounting plate and a third mounting zone is arranged in an intermediate region between the first mounting zone and the second mounting zone, wherein the mounting plate has a plurality of first openings in the region of the first mounting zone, a central second opening in the region of the second mounting zone and a plurality of third openings in the region of the third mounting zone, wherein at least one third opening has a radial slot.

[0011] A fiber-reinforced plastic (FRP) is a material consisting of reinforcing fibers and a plastic matrix. The matrix surrounds the fibers, which are bonded to the matrix through adhesive interactions. Due to the use of fiber materials, fiber-reinforced plastic composites exhibit directionally dependent elastic behavior. Fiber-reinforced plastic composites exhibit high specific stiffness and strength while being lightweight.

[0012] In one embodiment of the invention, the plastic matrix consists of a thermosetting matrix, preferably of epoxy resin. The reinforcing fibers are preferably inorganic and preferably formed from glass fiber, in particular a glass filament fabric. This fiber-plastic composite, also known as glass fiber reinforced plastic, is characterized by good aging resistance. A major advantage of glass fibers in combination with a plastic matrix is ​​the relatively high elongation at break. Furthermore, when a suitable matrix is ​​used, the glass fiber reinforced plastic exhibits excellent corrosion resistance. When an appropriate matrix system is used, glass fiber reinforced plastic has good electrical insulation properties.

[0013] This allows mounting plates made of glass-fiber-reinforced plastic to meet high safety requirements much better than metal mounting plates, while offering comparable strength properties. Furthermore, mounting screws or chandelier hooks can be anchored directly into the material of the mounting plate – without the need for additional counterparts such as nuts. The mounting screws or chandelier hooks literally "bite" into the fiber-reinforced plastic mounting plate, enabling permanent and secure fastening.

[0014] As an alternative to inorganic reinforcing fibers, organic reinforcing fibers - preferably electrically non-conductive organic reinforcing fibers - can also be used.

[0015] The first mounting zone is generally used to attach the mounting plate to the building ceiling, for example, to a ceiling box embedded in the building ceiling. The second and third mounting zones generally serve as alternative mounting options for a wall or ceiling luminaire to the mounting plate of the mounting device. However, it is also possible to use the third mounting zone both to attach the mounting plate to the building ceiling and to attach the wall or ceiling luminaire to the mounting plate.

[0016] According to one embodiment of the invention, the first openings each have a defined first diameter, with the first openings preferably being circular. In the case of circular first openings, the first diameter is formed by the circle diameter. In the case of non-circular first openings, the first diameter is defined by the smallest clear width.

[0017] To enable a high degree of flexibility in fastening the mounting plate to the building ceiling, it is advantageous if a plurality of first openings - preferably two or three first openings - are accumulated to form opening clusters along a circular ring segment in the annular edge region, wherein particularly preferably a plurality of - preferably four - opening clusters are arranged evenly distributed along the annular edge region around the axis of rotation of the mounting plate. Each opening cluster has, for example, three first openings arranged next to one another in the circumferential direction. For example, four opening clusters of three first openings each are distributed along the circumference in the annular edge region, wherein the opening clusters are each arranged one after the other at angular intervals of approximately 90°.

[0018] One embodiment of the invention provides that the second opening has a defined diameter, wherein the second opening is preferably circular—particularly preferably formed as a bore. The second diameter preferably corresponds to the first diameter. The second opening is designed, for example, to accommodate a chandelier hook, on which, for example, a wall or ceiling light designed as a chandelier can be suspended.

[0019] According to a further embodiment of the invention, the third openings each have a closed perimeter. This allows wall or ceiling luminaires to be attached to the mounting plate directly via a mounting beam, a mounting bridge, or a mounting bracket with mounting screws, as an alternative to the chandelier hook. Here, too, the mounting screws are self-anchoring and inserted into the mounting plate.

[0020] In one embodiment of the invention, it is provided that a plurality of third openings - preferably three third openings - are arranged in a group along a circular ring segment of the intermediate region, wherein particularly preferably a plurality of groups - preferably two groups arranged diametrically opposite one another with respect to the axis of rotation of the mounting plate - are arranged evenly distributed along the annular intermediate region around the axis of rotation. Preferably, two third openings are each arranged diametrically with respect to a rotation axis of the mounting plate and form a pair of third openings. For example, three pairs of openings are provided. Conveniently, at least one radial slot has a defined length and a defined width, wherein, for example, the length of the radial slots corresponds to at least five times, preferably at least ten times, the width.In one embodiment, at least one third opening in the region of an inner end of the radial slot can have an end bore open toward the slot, the third diameter of which, for example, corresponds to at least twice the width of the slot. The end bores facilitate the production of the radial slots and can serve, for example, as starting and end points when cutting the slots, such as during waterjet cutting. The width of at least one radial slot can, for example, correspond to or be smaller than the first diameter. Preferably, the width of at least one radial slot is smaller than half the first diameter.

[0021] This results in a large number of possible variations during assembly.

[0022] In a further embodiment of the invention, the mounting plate has at least one cable passage opening—preferably with a closed perimeter—in the region of the third mounting zone, wherein the cable passage opening is preferably arranged centrally between two third openings. The cable passage opening can, for example, have a third diameter that corresponds to at least three times the first diameter.

[0023] An embodiment according to the invention provides that the mounting plate is mirror-symmetrical with respect to a first plane of symmetry, wherein the second opening and the cable passage opening are preferably arranged in the first plane of symmetry. At least one first opening—preferably two first openings—can be arranged in the first plane of symmetry. Preferably, the first openings and / or the third openings are arranged mirror-symmetrically with respect to the first plane of symmetry.

[0024] In a further embodiment of the invention, the first openings and / or the third openings are arranged mirror-symmetrically with respect to a second plane of symmetry formed normal to the first plane of symmetry.

[0025] Such symmetrical arrangements have a beneficial effect on manufacturing and assembly costs.

[0026] In an embodiment of the invention which is easy to manufacture, it is provided that the mounting plate has a rotationally symmetrical - preferably circular disk-shaped - contour with respect to a rotation axis.

[0027] The invention will be explained in more detail below with reference to the non-limiting embodiments shown in the following figures. These schematically show:

[0028] Fig. 1 shows a mounting plate of a mounting device according to the invention in an axonometric view;

[0029] Fig. 2 the mounting plate in a front view;

[0030] Fig. 3 shows a mounting plate in a plan view; Fig. 4 shows a first application example of a mounting device according to the invention;

[0031] Fig. 5 shows a second application example of a mounting device according to the invention; and

[0032] Fig. 6 a fiber-plastic composite mounting plate.

[0033] The mounting device 1 according to the invention has a circular disk-shaped flat mounting plate 2 with several openings 17, 19, 20, 22, some of which are designed with different cross-sections and sizes.

[0034] The mounting plate 2 consists of a fiber-plastic composite 3 with reinforcing fibers 5 embedded in a plastic matrix 4. The plastic matrix 4 is formed, for example, by a thermosetting matrix, advantageously made of epoxy resin. The reinforcing fibers 5 are, for example, inorganic in nature and advantageously consist of glass fiber, in particular a glass filament fabric 6 (Fig. 6).

[0035] The mounting plate 2 made of a fiber-plastic composite 3, in particular of glass fiber reinforced plastic, can ensure safe and permanent installation of wall or ceiling lights 30.

[0036] The mounting plate 2 has at least three different mounting zones 11, 12, 13. A first mounting zone 11 is arranged in the region of an annular edge region 14 of the mounting plate 2. A second mounting zone 12 is provided in the region of the center 15, i.e., in the region of a rotational axis 2a of the mounting plate 2. A third mounting zone 13 is arranged in an annular intermediate region 16 between the first mounting zone 11 and the second mounting zone 12.

[0037] The first mounting zone 11 serves to fasten the mounting plate 2 to a building ceiling 32, for example to fasten the mounting plate 2 to a ceiling mounting box 33 embedded in the building ceiling 32. The second mounting zone 12 and the third mounting zone 13 generally serve as alternative fastening options for a wall or ceiling light 30 to the mounting plate 2 of the mounting device 1 (Fig. 4, Fig. 5).

[0038] The mounting plate 2 has a diameter D and a thickness d (Fig. 2). In a specific embodiment, the diameter D is 71 mm and the thickness d is 2 mm. In other embodiments, the mounting plate 2 has a thickness d of 1.5 mm or 3 mm.

[0039] The mounting plate 2 has a plurality of circular first openings 17 with defined first diameters Dl in the area of ​​the first mounting zone 11. In a specific embodiment, the first diameter is approximately Dl = 3 mm. The first openings 17 lie on a circular line k with the radius RI around the rotational axis 2a of the mounting plate 2 (Fig. 3). The radius RI is, for example, 40% to 45% of the diameter D of the mounting plate 2.

[0040] In the illustrated embodiment, three first openings 17 are each accumulated to form opening clusters 18 along a circular sector of the circular line k in the annular edge region 15 (Fig. 1, Fig. 3). A total of four such opening clusters 18 are provided, which are arranged evenly distributed along the annular edge region 14 around the rotational axis 2a of the mounting plate 2. Each opening cluster 18 thus has three first openings 17 arranged next to one another in the circumferential direction of the mounting plate 2. In the example illustrated in Figs. 1 and 3, four opening clusters 18, each consisting of three first openings 17, are positioned distributed along the circumference in the annular edge region 14. The opening clusters 18 are each arranged successively at angles α between approximately 70° and 110°, for example 90°, measured, for example, between the central first openings 17 of the opening clusters 18.ß denotes an angular section between two adjacent first openings 17, which is, for example, between 5° and 30°, in the exemplary embodiment approximately 10°.

[0041] The mounting plate 2 has a circular central second opening 19 in the region of the second mounting zone 12, which is designed, for example, as a bore. The second opening 19 has a second diameter D2, which essentially corresponds to the first diameter D1. The second opening 19 is designed, for example, to accommodate a chandelier hook 31, on which, for example, a wall or ceiling light 30 designed as a chandelier can be suspended (see Fig. 4).

[0042] The mounting plate 2 has a plurality of - for example six - third openings 20 in the area of ​​the third mounting zone 13. The third openings 20 are each designed with a closed circumferential line. This makes it possible to fasten a wall or ceiling light 30 to the mounting plate 2 as an alternative to the chandelier hook 31, directly via mounting screws 27 or indirectly via a mounting bracket 26. The third openings 20 are formed here by radial slots 21 with a defined length L and a defined width B. The length L of the radial slots 21 corresponds to at least five times, in the exemplary embodiment approximately ten times, the width B. The width B of at least one radial slot 21 can, for example, be smaller than the first diameter Dl. In the exemplary embodiment shown, the width B corresponds at most to half the first diameter Dl.The third openings 20 each have, in the region of an inner end 28 of the radial slot 21, a bore 29 open towards the slot 21, the third diameter D3 of which corresponds to at least twice the width B of the radial slot 21.

[0043] This results in a large number of possible variations during assembly.

[0044] Two third openings 20 are arranged diametrically with respect to the rotation axis 2a and form a pair of openings 20a, 20b, 20c for mounting a wall or ceiling light 30 on both sides of the mounting plate 2. In the embodiment shown, three pairs of openings 20a, 20b, 20c are arranged in circular ring segments of the intermediate region 16.

[0045] Three third openings 20 are arranged in a group 24 along a circular ring segment of the intermediate region 16. Several—preferably two—groups 24 of third openings 20 are evenly distributed along the annular intermediate region 16 around the rotation axis 2a. Two adjacent radial slots 21 form an angle γ between 35° and 60°, for example, 45°. The outer radial slots 21 of each group 24 form an angle δ between 35° and 60°, for example, 45°, with the first plane of symmetry s (Fig. 3).

[0046] This results in a large number of possible variations during assembly.

[0047] The mounting plate 2 has a cable passage opening 22 with a closed circumference in the region of the third mounting zone 13. The cable passage opening 22 is advantageously arranged centrally between two outer third openings 20 and centrally between a first opening 17 and the second opening 19. The distance a between the cable passage opening 22 and the second opening 19 thus corresponds approximately to half the radius RI. The cable passage opening 22 can, for example, have a fourth diameter D4, which corresponds to at least three times the first diameter D1 (Fig. 3). This ensures uniform loading of the mounting plate 2 and avoids stress peaks.

[0048] The mounting plate 2 is mirror-symmetrical with respect to a first plane of symmetry s. The second opening 19, the cable passage opening 22, and two central first openings 17 of mutually facing opening clusters 18 are arranged in the first plane of symmetry s. All first openings 17 and all third openings 20 are mirror-symmetrical with respect to the first plane of symmetry s. Furthermore, the first openings 17 and the third openings 20 are mirror-symmetrical with respect to a second plane of symmetry q perpendicular to the first plane of symmetry s.

[0049] This enables simple, safe and central mounting of a wall or ceiling light.

[0050] Fig. 4 shows a first application example of a mounting device 1 according to the invention. The mounting plate 2 is fastened to a ceiling mounting box 33 embedded in a building ceiling 32 via fastening screws arranged in the first openings 17, which are indicated by reference numeral 23. To supply power to the wall or ceiling light 30, a power cable indicated by reference numeral 34 is guided through the cable passage opening 22 of the mounting plate 2. A chandelier hook 31 is screwed into the second opening 19, on which the wall or ceiling light, designed, for example, as a chandelier, is suspended.

[0051] Fig. 5 shows a second application example of a mounting device 1 according to the invention. As in Fig. 4, the mounting plate 2 is fastened to a ceiling mounting box 33 embedded in a building ceiling 32 by means of fastening screws 23 arranged in first openings 17. To supply power to the wall or ceiling light 30, a power cable, indicated by reference numeral 34, is again guided through the cable passage opening 22 of the mounting plate 2. In contrast to Fig. 1, the wall or ceiling light 30 is fastened to the mounting plate 2 by means of a mounting bracket 26. The mounting bracket 26 is connected to the mounting plate 2 by means of mounting screws 27 screwed into the third openings 20. A housing 35 of the wall or ceiling light 30, formed for example by a lamp canopy, is detachably connected to the mounting bracket 26 by means of retaining pins 36.

Claims

P A T E N T A N S P R Ü C H E 1. Mounting device (1) for wall or ceiling lights (30), with a flat mounting plate (2) which has a plurality of openings (17, 19, 20, 22), characterized in that the mounting plate (2) is formed from a fiber-plastic composite (3) consisting of reinforcing fibers (5) and a plastic matrix (4), and in that the mounting plate (2) has at least three different mounting zones (11, 12, 13), wherein a first mounting zone (11) is arranged in the region of an annular edge region (14) of the mounting plate (2), a second mounting zone (12) is arranged in the region of a center (15) of the mounting plate (2), and a third mounting zone (13) is arranged in an intermediate region (16) between the first mounting zone (11) and the second mounting zone (12), wherein the mounting plate (2) has a plurality of first openings (17, 19, 20, 22) in the region of the first mounting zone (11),in the region of the second mounting zone (12) has a central second opening (19) and in the region of the third mounting zone (13) has a plurality of third openings (20), wherein at least one third opening (20) has a radial slot (21).

2. Mounting device (1) according to claim 1, characterized in that the plastic matrix (4) consists of a thermosetting matrix, preferably of epoxy resin.

3. Mounting device (1) according to claim 1 or 2, characterized in that the reinforcing fibers (5) are formed by inorganic reinforcing fibers (5), preferably by glass fibers, in particular a glass filament fabric (6).

4. Mounting device (1) according to one of claims 1 to 3, characterized in that the first openings (17) each have a defined first diameter (Dl), wherein preferably the first openings (17) are circular.

5. Mounting device (1) according to one of claims 1 to 4, characterized in that a plurality of first openings (17) - preferably two or three first openings (17) - are accumulated to form an opening collection (18) - in particular along a circular arc - in the annular edge region (14), wherein particularly preferably a plurality of - preferably four - opening collections (18) are arranged uniformly distributed along the annular edge region (14) around the axis of rotation (2a) of the mounting plate (2).

6. Mounting device (1) according to one of claims 1 to 5, characterized in that the second opening (19) has a defined second diameter (2), wherein the second opening (19) is preferably circular - particularly preferably as a bore.

7. Mounting device (1) according to claim 6, characterized in that the second diameter (2) corresponds substantially to the first diameter (Dl).

8. Mounting device (1) according to one of claims 1 to 7, characterized in that the third openings (20) each have a closed circumferential line.

9. Mounting device (1) according to claim 8, characterized in that a plurality of third openings (20) - preferably three third openings (20) - are arranged in a group (24) along a circular ring segment of the intermediate region (16), wherein particularly preferably a plurality of - preferably two - groups (24) are arranged - preferably evenly - distributed along the annular intermediate region (16) of the mounting plate (2).

10. Mounting device (1) according to one of claims 1 to 9, characterized in that two third openings (20) are arranged diametrically with respect to the axis of rotation (2a) of the mounting plate (2) in the intermediate region (16) and form a pair of openings (20a, 20b, 20c), wherein preferably at least two pairs of openings (20a, 20b, 20c), particularly preferably at least three pairs of openings (20a, 20b, 20c) are arranged next to one another along the circular ring segment of the intermediate region (16).

11. Mounting device (1) according to one of claims 1 to 10, characterized in that at least one radial slot (21) has a defined length (L) and a defined width (B), wherein preferably the length (L) of the radial slot (21) corresponds to at least five times, particularly preferably at least ten times the width (B).

12. Mounting device (1) according to claim 11, characterized in that the width (B) of at least one radial slot (21) is equal to or smaller than the first diameter (Dl), preferably smaller than half the first diameter (Dl).

13. Mounting device (1) according to one of claims 1 to 12, characterized in that at least one third opening (20) in the region of an inner end (28) of the radial slot (21) has a bore (29) open towards the radial slot (21), the third diameter (D3) of which corresponds to at least twice the width (B) of the radial slot (21).

14. Mounting device (1) according to one of claims 1 to 13, characterized in that the mounting plate (2) in the region of the third mounting zone (13) has at least one cable passage opening (22) - preferably with a closed circumference - wherein the cable passage opening (22) is preferably arranged centrally between two third openings (20).

15. Mounting device (1) according to claim 14, characterized in that the cable passage opening (22) has a fourth diameter (D4) which corresponds to at least three times the first diameter (Dl).

16. Mounting device (1) according to one of claims 1 to 15, characterized in that the mounting plate (2) is mirror-symmetrical with respect to a first plane of symmetry (s), wherein preferably the second opening (19) and the cable passage opening (22) are arranged in the first plane of symmetry (s), and wherein particularly preferably at least one first opening (17) - in particular two first openings (17) - is / are arranged in the first plane of symmetry (s).

17. Mounting device (1) according to claim 16, characterized in that the first openings (17) and / or the third openings (20) are arranged mirror-symmetrically with respect to the first plane of symmetry (s).

18. Mounting device (1) according to claim 16 or 17, characterized in that the first openings (17) and / or the third openings (20) are arranged mirror-symmetrically with respect to a second plane of symmetry (n) formed normal to the first plane of symmetry (s).

19. Mounting device (1) according to one of claims 1 to 18, characterized in that the mounting plate (2) has a rotationally symmetrical - preferably circular disk-shaped - contour with respect to a rotation axis (2a).

20. Mounting device (1) according to one of claims 1 to 19, characterized in that mounting screws (27) or chandelier hooks (31) are anchored directly in the material of the mounting plate.

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