EP1795799B2 - Luminaire having a supporting plate held in the interior thereof - Google Patents

Abstract

The lamp has a tub-shaped housing (2) and a transparent covering (4) which covers an opening in the housing. A stopper and/or clamping device (23) is provided for fixing a carrier plate (16) in the housing. A connecting unit of the device is formed by a projection which projects from the housing. The projection has a pin (23a) or a hollow pin with a cylindrical or hollow cylindrical cross-section.

Description

The invention relates to a luminaire according to the preamble of claim 1.

It is a wet room known, which can be attached by means of a U-shaped retaining element to a ceiling of a room by screwing the retaining element. The two U-legs of the support member project downwardly and are laterally resilient, being hook-shaped at their lower ends and latched to associated undercuts a counter-locking element made of steel, which screwed to the outside of the bottom wall of a trough-shaped housing of the lamp with a screw is. The screw extends through the bottom wall and a projection disposed on the inside thereof, by a flat web of a U-shaped plastic inner retaining element which bears against the projection, and by an inner steel disc located under the flat web. At the free leg ends of the U-shaped retaining element locking lugs are arranged, which pass through a plate-shaped reflector and behind, which is at the same time support plate or mounting rail for the mechanical and electrical connection elements of a lamp. This well-known wet room lamp has a multi-unit and therefore expensive construction, because a large number of items must be manufactured and assembled. In addition, the screwing for attaching the counter-latching element and the U-shaped inner support member is complicated and time consuming.

From the EP 0 179 453 A1 a lamp with a trough-shaped housing and a cover is known in which a support plate is secured with a clamp connection device on the housing; the housing-side connecting element of the clamping connection is a pin projecting from the housing.

Other lights are from the documents EP 0 315 520 A1 . EP 0 726 420 A1 and EP 0 829 677 A1 known.

The invention has the object of providing a luminaire of the type specified in such a way that a simple and quick installation is possible.

This object is solved by the features of claim 1.

In addition, the construction of the lamp should be simplified by reducing the number of necessary components.

Advantageous developments of the invention are described in the subclaims.

In the luminaire according to the invention, the connection between the support plate and the projection on the inside of the housing is a latching connection and / or a clamping connection. In this way, for connecting the support plate to the housing, preferably with the housing base wall, a quick-release connection is provided, which substantially simplifies the mounting of the support plate or a connecting element for holding the support plate on the housing and can be carried out with a small amount of time. Consequently, the mounting of the lamp is easier and faster, whereby the manufacturing cost can be kept low.

Another feature of the invention is to form at least one housing-side locking connection element or clamping connection element for connecting the support plate in one piece with the housing, in particular with the housing base wall. This not only eliminates the disc-shaped inner component in the known lamp, but it is also the construction and further simplifies the assembly considerably, because the housing-side locking or clamping element is integrally formed with the housing and therefore need not be mounted. Therefore, only a latching operation or clamping operation needs to be carried out to attach the support plate to close an inside latching or clamping connection for holding the support plate.

According to the invention, the housing-side connecting element of the connecting device is formed by a protruding from the housing projection in the form of a pin or a hollow pin, wherein the contract-plate-side connecting part is rotationally secured by a rotary / locking device on the projection.

When the locking or clamping connection is z. Example, to an axis clamping device with at least two opposing and projecting from the bottom wall of the housing inwardly locking and / or clamping surfaces, preferably a cylindrical or hollow cylindrical projection in cross-section, and with an annular inner component with its inner edge inwardly projecting ratchet teeth, which is attachable to the locking and / or clamping surfaces or on the projection. The ratchet teeth bend when plugging against the slip-on something, where they press in this position elastically against the locking and / or clamping surfaces or the projection and lock a return movement.

As an annular inner component, the inventively provided U-shaped headband made of plastic or metal is suitable as a holding means for the support plate, wherein the aforementioned locking or clamping teeth are arranged on the edge of a flat web of the U-shape Aufstecklochs. The free ends of the bar arms are each preferably connected by a latching connection with the support plate. As a result, a quick and easy to handle assembly and disassembly is possible while ensuring a simple and inexpensive construction.

A stabilization of the construction is achieved if the trough-shaped housing is provided on its outer side with attachment means for attachment to a support (eg ceiling or wall), which are located approximately where located on the inside of the bottom wall of the trough-shaped housing housing-side locking and / or connecting elements are located.

It is particularly advantageous if the located on the outside of the housing housing-side fastening means are also formed by locking elements which are integrally formed and accessible from the outside of the housing, preferably on the bottom wall.

Further development features of the invention lead to further simple and inexpensive to produce and easy to handle and quickly mountable embodiments.

The invention is preferably suitable for a present luminaire with an elongated construction, wherein the above-described components for mounting the lamp to the ceiling and the components for mounting the mounting rail in two, a longitudinal distance from each other having component assemblies are present.

Fig. 1

eine erfindungsgemäße Leuchte in perspektivischer Unteransicht;

Fig. 2

die Leuchte im Querschnitt mit einer Tragschiene, die im Hohlraum des fertig
montierten Leuchtengehäuses angeordnet ist;

Fig. 3

ein Anbauteil für das Gehäuse der Leuchte in einer Seitenansicht;

Fig. 4

das Anbauteil mit weiteren Befestigungsmitteln in perspektivischer Darstellung;

Fig. 5

einen U-förmigen Haltebügel in perspektivischer Ansicht;

Figuren 6A und 6B

Skizzen zu einer nicht beanspruchten Ausführung der Verbindungsvorrichtung mit Rippen am gehäuseseitigen Verbindungselement;

Figuren 7A und

7B Skizzen zu einer nicht beanspruchten Ausführung der Verbindungsvorrichtung mit Rippen am tragplattenseitigen Verbindungsteil.

Below, advantageous embodiments of the invention will be explained in more detail with reference to embodiments and drawings. Show it:

Fig. 1

a lamp according to the invention in a perspective bottom view;

Fig. 2

the luminaire in cross-section with a mounting rail in the cavity of the finished
mounted light housing is arranged;

Fig. 3

an attachment for the housing of the lamp in a side view;

Fig. 4

the attachment with further fastening means in perspective view;

Fig. 5

a U-shaped headband in perspective view;

Figures 6A and 6B

Sketches for an unclaimed embodiment of the connecting device with ribs on the housing-side connecting element;

FIGS. 7A and 7B

7B sketches for an unclaimed embodiment of the connecting device with ribs on the contractor-side connecting part.

The main parts of in Fig. 1 in their entirety designated 1 luminaire are a trough-shaped housing 2, a so arranged by a plurality on the circumference circumferentially arranged closure devices 3 releasably connected cover 4 and a cavity 5 between the trough-shaped housing 2 and the cover 4 arranged lamp 6, the at least a mechanical and electrical connection element is connected and held.

In the embodiment, it is a wet room light, which meets in this regard special protection requirements, eg. B. against the ingress of splashing u. a. in the region of the dividing joint 7 between the trough-shaped housing 2 and the cover 4, is splash-proof. This protection can be formed in the region of the dividing joint 7 by comb-like intermeshing webs 8a, 8b, 8c extending circumferentially in the circumferential direction, which form a labyrinth which provides protection against the penetration of sprayed water.

In the context of the invention, the preferably elongated lamp 1 may also have a different construction. It can be z. B. to a recessed light or a pendant lamp for a wall or ceiling of a room to be illuminated or another carrier act. The housing 2 may also have the cross-sectional shape of a box, the housing opening is covered by a flat cover 4.

In the embodiment, the lamp 1 has an elongated and straight-extending shape whose length L1 is a multiple of its width B. Accordingly, the trough-shaped housing 2 and the cover 4 are formed. This consists at least in their housing 2 remote from the dome area or the embodiment of a total of a transparent material, for. As glass or plastic, through which the light of the lamp 6 in the main emission direction S but also radiates to the sides.

In the illustrated embodiment, the trough-shaped housing wall 2a branches in its free edge region to two wall webs 8a, 8b, which have a transverse distance from each other, which is larger than a between the wall webs 8a, 8b with a transverse distance bordering wall web 8c, transverse to the plane of the dividing joint 7 of the with its wall 4a z. B. opposite trough-shaped or dome-shaped cover 4 protrudes.

The dividing joint 7 is preferably sealed with or without the above-described labyrinth by a ring seal having a sealing ring D, the bottom of a z. B. between the wall webs 8a, 8b existing circumferential groove 2b is arranged, and presses against the wall web 8c. The sealing ring D is made of soft elastic material, eg. B. from a foam tape.

The outer wall web 8a of the housing wall 2a is part of a widening step 9 in the free edge region of the housing wall 2a.

The housing wall 2a has on its a carrier, for. As a ceiling or wall of a room, facing investment side 11 fasteners 12, which serve the attachment to the carrier.

The majority of the existing closure devices 3 are arranged and formed mirror-inverted relative to one another or on both sides. Therefore, it is sufficient if in the following only one closure device 3 of the various embodiments will be described.

In all exemplary embodiments, the closure device 3 has a closure element 3a in a basically C-shaped cross-sectional shape, which engages behind the trough-shaped housing 2 in a form-fitting manner with its upper end region 3b, extending from the end region 3b substantially in a shape adapted to the associated outer shape of the housing 2 extends on the lamp housing on the dividing joint 7 out to the cover 4 and with the associated end portion 3c a widening step 10 engages behind the cover 4 in a form-fitting manner.

Preferably, in a lamp 1 elongated shape and in particular in such lamps 1, which are arranged longitudinally in a row behind each other and form a so-called light band is in the interior 5 of the completely mounted light 1, in particular in the cavity of the trough-shaped housing 2, at least one channel-shaped Line receiving portion 13 for electrical lines 14 and cable arranged. In the line receiving area 13, the lines 14 are manually or mechanically, z. B. controlled by a computer, inserted, where they are centered and stored and positioned orderly. An automatic insertion can z. B. with a trained robotic arm (not shown).

It is the purpose of the line receiving area 13 to keep the lines 14 bundled. Therefore, it is not necessary for the line receiving area 13 longitudinal longitudinal boundary walls 13a, 13b, but it sufficient to the line receiving area bounding boundary walls 13a, 13b, which may be arranged at longitudinal intervals from each other. The line receiving portion 13 is defined by the boundary walls 13a, 13b and a base portion 16a on three sides and open on a fourth side by a tapered opening slot 13c, whereby a receiving groove approximately U-shaped cross section is formed.

Depending on requirements, one or two receiving regions 13 may be arranged at a transverse distance from one another, preferably on both sides of the longitudinal center plane 15 of the luminaire 1.

It is advantageous to arrange the at least one line receiving area 13 between the housing bottom 2c and a support plate or - in an elongated lamp 1 -einer support rail 16, which extends approximately parallel to the housing bottom 2c in the central region of the cavity 5 and the housing 2 detachably is fixed, preferably by a quick-mount and detachable quick connection z. B. by one or two locking connections 17th

In the exemplary embodiment, the support rail 16 is in the region of the dividing joint 7, ie in the central region of the cavity of the lamp 1. According to an advantageous construction, the support rail 16 also serves to attach the mechanical and preferably also the electrical connection elements for the lamp 6. Die in Fig. 2 shown fluorescent tube is mechanically and electrically inserted in the usual way at their ends between two cheek pieces 18, which are preferably inserted by ausfederbare detents 19a each in a plug recess, not shown, and engage behind the recess edge. The associated locking device is designated 19.

For fixing the support rail 16 in the interior, two transversely to the longitudinal direction arranged U-shaped headband 22 are provided at a longitudinal distance from each other, the hoop web 22a is indirectly or directly on the housing bottom 2c releasably secured, preferably by a quick-release connection in the form of a latching connection and / or clamp connection. In the exemplary embodiment, this is an axle clamping device 23. This is formed by a from the housing bottom 2c in particular integrally projecting pin 23a preferably round cross-section, on which the strap web 22a is attached with a hole 23b from the inside, the hole edge by itself in the direction of the hole center extending teeth 23c is formed, which are elastically bendable and when plugging on the pin 23a of the mounting direction opposite obliquely bend and rest with an elastic clamping force on the lateral surface of the pin 23a. Due to the included by the opposing teeth 23 c obtuse angle W 1 of z. B. about 120 ° to 170 °, the crossbar 22a can be pushed onto the pin 23a, but not push back because the teeth 23c prevent this due to their friction and clamping or latching locking function on the lateral surface of the pin 23a.

In a round cross-section pin 23 a, the axle clamping device 23 is combined with a rotary / locking device 24, the z. B. is formed by one or two angled from the edge of the transverse web 22a transverse web leg 22b, which engage over a common or in each case a bottom web 2d on the inside of the housing bottom 2c fitting.

According to an unclaimed variant, based on the FIGS. 6A, 6B . 7A, 7B and 7C is outlined by way of example, the connecting device for connection between the housing-side connecting element - ie the pin 23a - on the one hand and the contract-plate-side connecting part on the other hand, designed such that the connection can be repeatedly produced and solved. The connecting plate-side connecting part can be, for example, the retaining clip 22 or directly around the mounting rail 16 or a support plate. A correspondingly detachable connection is for example advantageous if the support rail 16 or the support plate must be replaced.

For this purpose, it may be provided that the pin 23 a ribs 40 for contacting with the contract plate side Having connecting part. Alternatively or additionally, it may be provided that the contract-plate-side connecting part has ribs for contacting with the pin 23a. In the in the Figures 6A and 6B sketched example, the pin 23a such ribs 40 on its outside. The ribs 40 are in this case formed parallel to the longitudinal axis of the pin 23a, in order to facilitate a rectilinear attachment of the workpiece-side connecting part. In this variant, the pin 23a preferably has two, three or four ribs 40.

By the ribs 40, a connection is formed, which can be released again. When pressing the part to be fastened, in this case the contract plate-side connecting part, on the pin 23 a, a tension in the elastic region is generated, so that a release and also a renewed fastening, also in a repeated manner, is possible.

As exemplified in Fig. 7A sketched, it can also be provided that the contract-plate-side connecting part has a hole 45 for attachment to the pin 23a and the hole 45 correspondingly formed on the inside ribs 41 has. The pin 23a may be designed in this case without ribs or with ribs 40, which are adapted in the latter case, in particular in its radial extent to the ribs 41 of the hole 45, so that an elastic tension is made possible.

In the in the Figures 7A, 7B and 7C sketched example, the contract-plate-side connecting part is formed directly by a support plate 16 ', whose shape from the cross-sectional view of Fig. 7B and the top view of Fig. 7C evident.

If the pin is formed as a hollow pin, corresponding ribs 40 may be provided on the inside of the pin.

The following is again based on the Fig. 2 illustrated embodiment reference.

The brackets 22 are each connected by the locking device 17 with protruding latching lugs 17a at the ends of the bar legs 22c releasably connected to the support rail 16, wherein the locking lugs 17a each engage in one or a common plug recess 25 in the mounting rail 16 and engage behind. The at least one plug-in recess 25 is so large that the latching lugs 17 a are pushed through and can be bent transversely between a release position and a rear grip position, wherein they are resiliently biased into their engagement position.

The support rail 16 can also serve to receive a so-called ballast 26, which is held in the embodiment between the stirrup legs 22c on the support rail 16.

In the exemplary embodiment, two line receiving areas 13 are arranged on both sides of the longitudinal center plane 15 on the inside of the bar legs 22c, in particular in their corner area facing the bar 22a, so that the bar 22a can form one of the two boundary walls, in this case the boundary wall 13b. Both line receiving areas 13 may be the same or with respect to the perpendicular to the mounting side extending - here vertical - longitudinal center plane 15 be formed mirror-image.

In the context of the invention, both opposing boundary walls 13a, 13b may be formed by bent boundary tongues 27, which are formed by U-shaped cuts 28, z. B. in the strip-shaped hanger arm 22c, are cut and bent at right angles or obliquely inwards to a U-shape. A tapered opening slot 13c may each be defined by the oblique extent or by a inflection of a z. B. free bending region 27a of the limiting tongue 27 may be formed, whereby a taper of the opening slit 13c, a sidecut of the line receiving portion 13 is formed. In this case, when the free end region 27b of the limiting tongue 27 extending beyond the opening slit 13c is bent divergent with respect to the opening slit 13c, a lead-in area 29 convergent in the insertion direction is formed, which facilitates insertion by its centering guiding action.

If the at least one line receiving area 13 is formed on one side by the web 22a and on the other side by the bent limiting tongue 27, it is advantageous to increase the flexibility of the limiting tongue 27, the U-shaped cutout 28 into the web 22a into extend like it Fig. 5 shows.

To attach the lamp 1 and the housing 2 to a support, for. B. a ceiling or a wall of the room to be illuminated, the lamp 1 in a short configuration, not shown, two locking elements 31 a and in a present elongated configuration in each case two spaced apart in a longitudinal distance locking elements 31 a on the contact side 11, the one piece to the Bottom wall 2c formed and formed in the embodiment by protruding webs 31b with locking lugs 31c, the z. B. on the opposite sides of the webs 31b and may be formed by laterally projecting legs. The latching elements 31a are parts of a latching connection 31 with corresponding latching elements 31d, which are elastically yielding between a latching position and a release position and integrally connected to a z. B. bridge-shaped mounting plate 32 are formed, which in turn has one or more fasteners 32 a, 32 b for direct or indirect attachment to the support of the lamp 1.

The mounting plate 32 consists of a base strip 32c, projecting from the opposite end faces support legs 32d U-shaped, the hook-shaped locking lugs 32e wear, which form the plate-side locking elements 31d and behind the locking edges 31c are elastically latched. The locking lugs 32e are on locking tongues 32f, z. B. by bending, molded, wherein they are directed towards each other in the embodiment. The locking tongues 32f are formed by U-shaped cutouts 33 in the support leg 32d and bent with respect to the latter. In the embodiment, the support legs 32d on a U-shape, which is open to the support side. Since the bent-out latching tongues 32f do not have this U-shape, they project beyond the support legs 32d at a distance, so that they can engage behind the latching edges 31c.

Due to the rounded or oblique bend of the hook-shaped locking lugs 32e guide surfaces 34 are formed, which cause an automatic deflection of the locking lugs 32e when merging the latching connection 31 so that they can automatically engage in the locked position behind the locking edges 31c.

In order to fasten the fastening plate 32, at least one through hole forming the fastening element 32a is provided in the base strip 32c for the purpose of passing through a fastening screw (not illustrated).

For indirect attachment of the mounting plate 32 by hanging at least two anchor elements 32 b forming the fastening elements are provided, in which a z. B. angular suspension member 37 with z. B. angled anchor pieces 37a at the ends of its leg angle 37b can be inserted and anchored, wherein in the vertex 37c, a tape or chain connected for hanging z. B. threaded, is.

The mounting plate 32 is preferably integrally formed, for. B. from a flexurally elastic strip material, for. B. sheet or leaf spring steel. It is preferably a punched / bent part. To stabilize the base strip 32c, one or more beads 38 may be formed therein extending from one end face to the other end face and thereby stabilize the base strip 32c against bending overload.

In the present elongated luminaire 1, two detent connections and / or clamping connections formed here by the axle clamping device 23 are provided for connecting two U-shaped retaining clips 22 in a longitudinally extending distance. At this distance, the latching connections 31 or latching elements 31a located above them and the latching devices 17 underneath are arranged for connecting the carrier rail 16.

Since the mounting rail 16 is located at a distance from the main emission direction S with respect to the light source or lamp 6, the mounting rail 16 can form a reflector denoted by R in its entirety, which reflects the light radiated toward it towards the cover 4. To achieve this, it only requires the formation of the light source side facing the support rail 16 as a reflection surface for the light. This can be achieved in a simple and cost-effective manner in that the light source facing, preferably flat, side 16d of the support rail 16 is coated with a reflective layer, which may be color, especially white color, act.

Claims (12)

1. A luminaire (1) having

   - a tub-shaped housing (2),

   - a transparent covering (4) covering the opening of the housing (2),

   - a support plate (16) possibly acting as a reflector,

   - at least one connecting device (23) for securing the support plate (16) in the housing (2),

   wherein the connecting device (23) is a latching and/or clamping connection, and the housing-side connecting element (23a) of the connecting device (23) is formed by a projection which projects from the housing (2) and preferably projects inwards, wherein the projection is formed by a pin or hollow pin, preferably with a cylindrical or hollowly cylindrical cross-sectional form,
   and wherein the support-plate-side connecting portion is secured against rotation on the projection by means of a rotating/blocking device (24),
   characterised in that
   the support-plate-side connecting portion is formed by a U-shaped holding clip (22), whose clip legs (22c) are connected to the support plate (16).
2. A luminaire according to claim 1,
   characterised in that
   the housing-side connecting element (23a) of the latching and/or clamping connection (23) is formed in one piece with the housing (2).
3. A luminaire according to claim 1 or 2,
   characterised in that
   the housing-side connecting element (23a) is arranged on the housing base (2c).
4. A luminaire according to one of the preceding claims,
   characterised in that
   the housing-side connecting element (23a) and/or the support-plate-side connecting portion have/has ribs (40, 41).
5. A luminaire according to one of the preceding claims,
   characterised in that
   the connecting device (23) is formed by an axial clamping device, whose support-plate-side connecting portion can be plugged with a hole (23b) onto the projection, with there being arranged at the hole edge extending radially inwards one or more latching teeth (23c) which, when plugged onto the projection, bend out elastically in the opposite direction to the plugging-on direction and press elastically against the projection and block a movement of the support-plate-side connecting portion in the opposite direction to the plugging-on direction.
6. A luminaire according to one of the preceding claims,
   characterised in that
   the clip legs (22c) of the U-shaped holding clip (22) are connected to the support plate (16) by means of a latching connection (17).
7. A luminaire according to claim 6,
   characterised in that
   the rotating/blocking device (24) is formed by at least one cross-piece leg (22b) protruding from the cross-piece (22a) of the holding clip (22) and engaging over a base cross-piece (2d).
8. A luminaire according to claim 6 or 7,
   characterised in that
   the latching connection (17) is formed by latching lugs (17a) that are arranged on the clip legs (22c) and engage through and behind respective recesses (25) in the support plate (16).
9. A luminaire according to one of the preceding claims,
   characterised in that
   the tub-shaped housing (2) on its outside (11) is provided with securing means that are preferably formed by latching elements for attachment to a ceiling or a wall.
10. A luminaire according to claim 9,
    characterised in that
    the securing means are formed in one piece with the housing (2).
11. A luminaire according to claim 9 or 10,
    characterised in that
    the securing means are located substantially at that point where on the inside of the base wall (2c) of the tub-shaped housing (2) the housing-side connecting elements are located.
12. A luminaire according to one of the preceding claims,
    characterised in that
    the housing (2), the covering (4) and the support plate (16) are formed in an elongate manner, and two connecting devices (23) that are at an axial distance apart are provided to connect the support plate (16).

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