DE202011103747U1 - Illuminated furniture fronts - Google Patents

Abstract

Illuminated furniture fronts (1) in a layered structure, in particular on surfaces facing a viewer, of furniture and other buildings in interior design, such as connected to table tops, integrated in ceilings as a hanging lamp, light plate, etc., characterized in that the layered structure consists of translucent and non-translucent, plate-shaped materials with a small thickness of the translucent, whereby a frameless layering of a translucent outer motif carrier plate (2), consisting of acrylic glass, of other crystal-clear plastics or of glass, an LED light guide plate (4) and a non-translucent carrier plate ( 7), the latter consisting of plastic, metal, wood or wood-based materials, is present and, the side edges of the translucent superimposed surfaces are fixed by means of the attachment of a glued edge (8) and this composite, which is firmly attached to the carrier plate (7), in front the motif carrier plate (2) has a scratch-resistant and impact-resistant motif of a furniture decoration or another pictorial representation in the form of a film, which by means of the illuminants, the LEDs (5), attached in the LED light guide plate (4), from the inside to ...

Description

The invention relates to illuminated furniture fronts in all segments of the interior design, such as bathroom, kitchen, bedroom, living room, children's and Jugendzimmer- or hallway furniture for the purpose of increasing the living comfort, which means of an indirect or direct-acting lighting a more remote or immediate environment at the location of such equipped furniture is achieved.

However, according to the principle of illuminated furniture fronts, table tops, underhang lamps, light panels, light displays and light pictures are also conceivable in two- or three-dimensional constructions, in particular in interior design.

The indirect light for the environment providing lighting of sideboards, showcases u. a. has long been known and it is carried out by shielded incandescent lamps, fluorescent tubes and, increasingly, by low-power consuming LED in practice.

However, a direct directed into the surface of a furniture front lighting is not yet or only inadequate quality achieved. With reference to the state of the art set out below, reference should be made, by way of example, to solutions which devote themselves to surface illumination with more or less success.

So is with DE 20 2007 015 538 U1 a furniture lighting for glass plates has become known. It carries a U-profile in its interior and between its outer cheeks a cold light cathode as a light source and it corresponds to the distance between the two edges of the U-profile of the strength of a glass plate on which the U-profile is pushed. This illuminates the edge of the glass plate, from which the light is further distributed in the uncovered area of the glass plate.

The disadvantage here is the partial coverage of a usable as a shelf glass plate.

To WO 2009/105 644 A1 a frontal moistening of a surface has been proposed by means of an LED illumination built up in front of the surface. By positioned in several rows on a bar LED's both the center and the upper and lower edge area can be effectively illuminated.

The disadvantage, however, is the separation of the light source from the surface to be illuminated, resulting in no suitability for lighting in furniture.

The solution in DE 25 11 030 A1 offers a lighting fixture, in particular for (a) refracting surface lighting. The lighting fixture here is made of transparent material, so that light can escape from its interior, wherein on one edge of the lighting fixture, a light source is attached, which guides light into the surface by continued reflection of the light on the opposite sides of the glass, which is represented by rectilinear grooves, so-called Impurities on the surface of the lighting fixture, is amplified. The rectilinear impurities change their distance from each other with increasing distance from the light source. The disadvantage here may be that is lost when depositing dust particles in the impurities, the effect of large-scale light distribution.

In DE 10 2008 025 475 A1 a programmable furniture lighting has become known, according to which individually controllable lighting systems are mounted in a sideboard in each of its individual areas. Here, the interior of a furniture body is illuminated selectively or as a whole and front panels are not provided.

A similar "open" variant of the lighting of the interior of a furniture body or shelf part offers itself after DE 20 2007 002 463 U1 at. Here, a metal bracket is shaped such that on the one hand in an open to closed area he can wear a bulb by hanging and at its opposite end has such an angling that allows him to be inserted into a hole for retaining pins of a shelf. An unfolding clamping action keeps the holder in position.

These examples have shown that there are a number of ways to technically equip furniture via their specially designed surfaces both in closed form and in open form by attaching lighting means such that their appearance in the furnishing of living space can be very individual. However, it is not always achievable that interfering auxiliary structures (frame formations) do not affect the propagation of the installed light.

It is therefore an object of the invention to propose a solution for lighting of furniture and other uses of the type mentioned above the front or visible surfaces, so that no shadowing possible in the border areas by frame structures, the lighting is uniformly intense over a furniture front, so it should also be possible by means of translucent films, the front or behind translucent materials, made of appropriate plastics or glass, attached can be furniture decors, two-dimensional patterns, images, etc. without loss of quality in the representability and above all borderless. Furthermore, it should also be possible to print the motifs mentioned directly on the motif carrier plate. The preparation of constructed in this way surfaces for illuminated furniture fronts should also be inexpensive and their supply of electrical energy using integrated LED bulbs cost.

The basic solution of the problem is carried out according to the characterizing features of the protection claim. 1

The further embodiment of the invention is made according to the protection claim 1 following protection claims 2 to 7.

Further references to the teaching of the invention are required.

An illuminated furniture front is basically in its layered structure of a motif support plate, a light guide plate and a support plate, the latter is not translucent, for example, it consists of plastic or wood and contributes due to their rigidity to the stability of the connection system. The motif support plate has translucent properties, which is an organic art or silicate glass. Behind or in front of the front panel is a printed film or a direct printing plate with a furniture decor or another example. Individually selectable representation of a composite by several furniture fronts image or a natural substance model, for example, stone grains this film that of the on edge de LED Light guide plate recessed LED produced light can pass out to the surface of the motif support plate. The foil and the motif carrier plate adhere to each other over the entire surface and firmly, so that even due to the minimal heat input of the LED on the LED light guide plate, no distortion or blistering occurs. Alternatively it can be provided that behind the LED light guide plate, a heat exchanger plate is mounted from heat-dissipating material.

The motif carrier plate, the printed film and the LED light guide plate are translucent, the latter preferably consists of acrylic glass (PMMA) and at one or more edges of the LED are connected in total with a rear rigid support plate firmly connected by their common Edges a border is glued or wedged as a glue edge of a thin wooden, plastic or metal strip. The thus created composite system of several translucent and an opaque plate can be provided by the variably predictable thickness of the support plate for both supporting and non-supporting functions on furniture carcasses.

The support plate is usually made of metal z. As aluminum, wood or wood materials, plastic (opaque) or it is made of the material of a furniture chipboard, wherein the bonding of the support plate with the aforementioned light-generating and lichtverbreitenden elements does not exceed the material thickness used in the furniture industry furniture board of 19-25 mm.

Moreover, the support plate allows it to be attached to its rear side facing a furniture carcass in such a way that recesses for furniture fittings can be worked out in the required manner.

The invention will be explained in more detail with reference to an embodiment. For this purpose, the drawings of the 1 . 2 and 3 directed.

Show it:

1 : an exploded view of an illuminated furniture front

2 a side view according to 1

3 : a furniture front or another illuminated area in closed training

The construction of an illuminated furniture front 1 emerges vividly 1 , Here it is provided that on the outside of a translucent motif carrier plate 2 consisting of acrylic glass, other crystal clear plastics or glass a shock and scratch-resistant film with a specific furniture decor or other graphical, pictorial or two-dimensional representation is firmly applied, this film also has translucent properties, both by means of an LED light guide plate arranged behind 4 over the entire surface, from the edge, be illuminated. The LED light guide plate 4 has at least on two of its four edges stringed LEDs 5 They point their light by means of a on the surface of the LED light guide plate 4 mechanically evenly deep lattice structure on the side, pointing forwards and outwards, full-surface and homogeneous in the surface of the illuminated furniture front 1 radiate. The plate-shaped elements mentioned up to here are with one the illuminated furniture front 1 backward final support plate 7 firmly connected, for which purpose a border areas on the side edges final and there permanently mounted enclosure, a Anleimkante 8th , is provided. The edge of the glue 8th may be such a thin strip of metal, plastic or wood that between adjacent ones illuminated furniture fronts 1 , For example, between drawer surfaces or between adjacent door leaves on a piece of furniture, hardly any limitations are perceived. Shadows on the surface of a lit furniture front 1 can be found as a result of an outside to inside in the LED light guide plate 4 progressively more intense reflection of the in particular opposite arranged LED's 5 , Not. The LEDs 5 are, for example, in a version with two oppositely arranged rows, each one at the edge of the back of a LED light guide plate 4 incorporated groove 3 ,

To 2 becomes the body of an illuminated furniture front 1 in side view with indicated fitting 11 shown, with the illuminated furniture front 1 measures approx. 6 to 50 mm in the depth and the glue edge 8th includes this entire composite. The layered structure of a motif carrier plate 2 , an LED light guide plate 4 with LEDs 5 , a reflector 6 and a heat exchanger plate 10 as essential elements of the illuminated furniture front 1 can be specified with a thickness of approx. 6 mm.

In the example shown has the illuminated furniture front 1 inside the LED light guide plate 4 another reflector that enhances the light emission 6 which may consist of a light-reflecting film.

It is conceivable that more than one LED light guide plate 4 in the layered structure of the illuminated furniture front 1 is integrated.

• – es ist erstmalig möglich die Flächen vollständig nur von den Kanten her zu beleuchten ohne einen Rahmen aus Profilen oder einen Rahmenträger herzustellen, sodass unnötige Abschattungen vermieden werden,
• – die verschiedenen transluzenten und nichttransluzenten Schichten werden nur durch die verleimte Kante, mittels einer Anleimkante, untereinander verbunden,
• – durch diesen Aufbau ist es möglich, sehr dünne Lichtflächen herzustellen, die sich u. a. bei der Möbelherstellung problemlos eignen mit herkömmlichen Möbelspanplatten verbunden zu werden,
• – die beleuchtete Möbelfront ist sowohl zu Dekorationszwecken und als auch für homogen Lichtflächen zur direkten Beleuchtung von z. B. Arbeitsflächen (Küchenmobiliar) einsetzbar,
• – zur Erzeugung einer bestimmten oder wechselnden Lichtmischung/-en können auch unterschiedlich farbige LED im Lichtleiterplatte vorhanden sein.

The advantages of the inventive solution can be summarized in:

• It is possible for the first time to illuminate the surfaces completely only from the edges without producing a frame of profiles or a frame support, so that unnecessary shadowing is avoided,
• The different translucent and non-translucent layers are interconnected only by the glued edge, by means of a gluing edge,
• - Through this structure, it is possible to produce very thin light surfaces, which are easily suitable, inter alia, in furniture production with conventional furniture chipboard,
• - The illuminated front furniture is both for decorative purposes and as well as homogeneous lighting surfaces for direct lighting of z. B. work surfaces (kitchen furniture) can be used,
• - To produce a specific or changing light mixture / -en also different colored LED may be present in the light guide plate.

LIST OF REFERENCE NUMBERS

1

furniture front

2

Motif carrier plate

3

groove

4

LED light guide plate

5

LED

6

reflector

7

support plate

8th

Anleimkante

9

groove

10

heat exchanger plate

11

fitting

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202007015538 U1 [0005]
• WO 2009/105644 A1 [0007]
• DE 2511030 A1 [0009]
• DE 102008025475 A1 [0010]
• DE 202007002463 U1 [0011]

Claims (7)

Illuminated furniture fronts ( 1 ) in a layered structure, in particular on a viewer facing surfaces of furniture and other buildings of interior design, such as. Connected with table tops, integrated in ceilings as Unterhangleuchte, light plate, etc., characterized in that the layered structure of translucent and non-translucent, plate-shaped materials with a small thickness of the translucent, wherein a borderless stacking of a translucent outer motif support plate ( 2 ), consisting of acrylic glass, other crystal-clear plastics or glass, an LED light guide plate ( 4 ) and a non-translucent carrier plate ( 7 ), the latter consisting of plastic, metal, wood or wood-based materials, is present, and, wherein the side edges of the translucent superimposed surfaces by means of the approach of a Anleimkante ( 8th ) are fixed and this composite, on the support plate ( 7 ) is firmly attached, in front of the motif carrier plate ( 2 ) has a scratch and impact resistant motif of a furniture decoration or other pictorial representation in the form of a film, which by means of the LED light guide plate ( 4 ), the LED's ( 5 ), from the inside to the outside over the motif carrier plate ( 2 ) is illuminable. Illuminated furniture fronts ( 1 ) according to claim 1, characterized in that the LED light guide plate ( 4 ), in particular on two opposite sides and there in each case a groove ( 9 ) strung LED's ( 5 ) in the area of the illuminated furniture front ( 1 ) all over and homogeneously radiating or the lined up LEDs ( 5 ) encircling the entire circumference of an illuminated furniture front ( 1 ) are arranged. Illuminated furniture fronts ( 1 ) according to claim 1, characterized in that the gluing edge ( 8th ) of an illuminated furniture front ( 1 ) consists of a thin strip of plastic, wood or metal, extending in a width of the entire layered structure of all the elements, including the non-translucent support plate ( 7 ), the composite of the illuminated furniture front has. Illuminated furniture fronts ( 1 ) according to claim 1, characterized in that between the carrier plate ( 7 ) and the LED light guide plate ( 4 ) a reflector ( 6 ) in the form of a light-reflecting metal foil corresponding to the surface of the support plate ( 7 ) and the LED light guide plate ( 4 ), is arranged. Illuminated furniture fronts ( 1 ) according to one of the preceding claims, characterized in that the illuminated furniture fronts ( 1 ) according to their fixed layered structure and, with a corresponding layer thickness of the support plate ( 7 ), serve as load-bearing walls in the structural design of furniture. Illuminated furniture fronts ( 1 ) according to claim 1 to 5, characterized in that behind the reflector ( 6 ) a heat exchanger plate ( 10 ) for the purpose of heat dissipation to the rear in the direction of the support plate ( 7 ) is attached. Illuminated furniture fronts ( 1 ), according to one of the preceding claims, characterized in that furniture decorations or other pictorial representations as a direct sheet printing directly on the motif carrier plate ( 2 ) are applied.

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