DE202008013973U1 - Trunking system with closed light exit opening - Google Patents

Abstract

Light band system with a plurality of longitudinally successive U-shaped rails (88) for receiving light sources, wherein the rails (88) together form an elongate light exit opening (84) and formed to prevent the light output in the joint area of two adjacent rails shielding (10) is provided,
characterized,
the shielding element (10) is designed to
in a first state (Z1) from the light exit opening (84) forth in the receiving space (64) of the rails (88) to be inserted and
in a second state (Z2) within the rails (88) to be clamped with these.

Description

The The invention relates to a lighting system with several U-shaped Rails for receiving light sources in the longitudinal direction be arranged one behind the other. The rails form together an elongated light exit opening, for the one to prevent the light output in the joint area provided two adjacent rails trained shielding is.

To over to go beyond the use of individual or objectionable lights can, for example, to more even Illumination of a working room, for a visually appealing Design or for higher luminances, is on known, the U-shaped rails for to line up a lighting system or a line of light. On Mondays as a light line are serving as the luminaire housing Extruded profiles, for example made of aluminum or a plastic directly pushed together. However, it turns out that at the joints of two adjacent profile body Light exits through the gap, which is undesirable.

Furthermore, You should be able to avoid that from the lights warmed air at the joint through the slot or the joint joint flows through, since after a certain time train on a bright wall or a gray veil can, even if the lamp with high operating temperature leads to strong convection flow. Also should if possible dust or foreign bodies in the outer space remain, as in connection with moisture the insulation resistance on the bracket to the lamps can take over which some time to erosion of nearby materials from conductive contacts or lead to leakage currents can.

Now you could try using an opaque Silicone paste, a putty or putty such joints easy to seal. It would be initially the workload and to consider the assembly time, which in a trunking system would be significant with many elements. However that is Appearance of seals of manual skill and patience dependent on the performer. Furthermore you can also post-processing steps after curing of the sealant, like removing an overhang, the Surface of the profiles could be affected even if this with a later removable plastic protective film sealed by the manufacturer. The aforementioned approach may be at a few elements or as a temporary solution in question.

Indeed However, the aforementioned sealing with a sealant but also already before retire or finally fail completely, because of the Going beyond manufacturing and manufacturing trends or production batches also by mounting the joint width can vary. So can for example, when mounting the profiles on an uneven ceiling the End faces of the abutting sides of the profiles be somehow offset in the joint area. Next, the area, which is still wetted with a liquid sealing medium could be exceeded, especially as the processing time can lead to hurry with conventional silicone pastes and also a curing time, the further work on the lighting system can delay. Because the profiles due to operation move the luminaire to adjust the temperature gradient, Also, the gap width can continue to vary, so even a seal with small gap width next to the direct aging and elasticity losses due to temperature fluctuations, thermal and thermal cycling Also, cracks can be caused by the mechanical walking of the profiles.

As well one could still remember, the profiles cohesively connect to. Although the above-mentioned with steel in the range of a certain wall thickness for example, by spot welding, copper sheet be conceivable by hard or soft soldering. However will a welding, especially with thin aluminum profiles rather be excluded at the construction site and rather forbid, if the molded hollow profile rails treated, electrolytic oxidized or the surface with a plastic, paint, or powder or enamel layer, smooth or on Reflected mirror finish. Nevertheless, the aforementioned meets finally the skills of the respective installer and a possibly spatially tight working environment at the installation site. Finally, would turn the operating temperature gradient also to mechanical Cause tension. As a result, so can the seams become brittle or tear, as in others Magnitudes of railroad tracks known is, and the procedure should be repeated.

in the In any case, the result is still missing in a safe and elegant Possibility of the butt joint between adjacent ones Close rails in a trunking system.

From the publication DE 198 02 376 A1 is an element known, with the help of the light leakage between two adjacent lamp grids to be prevented. In this case, a multi-part positioning element is arranged by a connector in the joint area of lights, which bridges the butt joint. However, the construction known from the aforementioned document already clearly leads to a different solution in the beginning than it does in the present case.

Around improve the individual parts of the lighting system that this also against light leakage at the butt joint areas It can be sealed, it is necessary that the appropriate shielding can be used easily and with a certain force to the Side parts of the profile parts applies or rests. It should So also the side parts can be aligned, that one so-called clean concluding, geometrically regular and so that visually appealing joint seal can be created which, in turn, is a prerequisite for at least one light-tight separation of the inner area of the lighting system from Outside space. Beyond that would be a certain Mobility or elasticity of a seal in the rail desirable.

Of the The present invention is therefore based on the object, the Improve trunking system and a suitable shielding to create, with the light leakage at joints between the joints abutting similar lighting of a light band is suitably prevented.

The The object is achieved by a lighting system according to claim 1 and by an element for use in a lighting system solved according to claim 10. advantageous Further developments are the subject of the dependent claims.

Accordingly, becomes proposed according to a first embodiment, a lighting system with several longitudinally to be arranged one behind the other, U-shaped rails for receiving light sources, wherein the rails together an elongated light exit opening form and one for preventing the light output in the joint area provided two adjacent rails trained shielding is, characterized in that the shielding member is formed is, in a first state of the light exit opening be introduced into the receiving space of the rails and jammed in a second state within the rails with these to be.

Prefers is that the shielding element is U-shaped, wherein the underside the U-shape in the middle forms a film hinge, so that the opposite side wall legs in the first state are folded inwards and in the second state in pressure-locking Plant are located with the rails. Further preferred is that the U-shaped shielding in the area of the corner between Side wall leg and lower portion of the shielding a Eckversteifung, strut or has a radius whose center on the bisector running through the corner.

Especially it is preferred that the U-shaped shielding in the area the ends of the sidewall legs have a radius of curvature, suitable for a receptacle in the sidewall of the rail, which exceeds a part wall thickness of the sidewall legs, so a special stability for the recording and provide delivery of spring forces to be able to.

Besides is preferred that the U-shaped shielding on the Outside of the sidewall legs one from the end of the legs to the lower region extending strut or a linear Has bead which runs along the middle of the width of the leg and in the second state through the two adjacent rails completed trained impact area.

Besides It is particularly preferred that one from the end of the legs to the lower Area extending strut or a linear bead the U-shaped shielding member on the inside of the side wall legs is trained.

Further is provided that in the lower area of the sidewall leg over two arms are connected in a bridge-like manner, wherein in the transition area between the two facing inwards Poor a film hinge is formed.

Especially it is preferably provided that the bridge-like with each other connected arms form an H-shaped spring element, in which the arms are T-shaped starting from the through the film hinge formed axis of rotation extending to the insides of the sidewall legs, are formed.

Further is still preferred in the second state, the film hinge of the H-shaped Spring element with the film hinge in the lower region of the U-shaped Shielding element in plant.

After all is a U-shaped shielding element for a lighting system with several longitudinally to be arranged one behind the other, U-shaped rails for receiving light sources, wherein the rails together an elongated light exit opening form and one for preventing the light output in the joint area provided two adjacent rails trained shielding, characterized in that the shielding member is formed is, in a first state of the light exit opening be introduced into the receiving space of the rails and jammed in a second state within the rails with these to be.

Finally, the U-shaped shielding element for a lighting system is characterized net, that it is made of a plastic such as polypropylene, polycarbonate or polyamide.

at the embodiment of the present invention the light band through several U-shaped profile parts, extruded profiles or rails formed, which, along a line in the longitudinal direction running, be attached to each other. The joint area the joints or butt joint area of the rails is overlapped by an element that aligns with the U-shaped Profile parts detachably located in plant.

following the invention with reference to the accompanying drawings closer be explained. Show it:

1a a schematic cross-sectional view of a shielding element according to the embodiment of the present invention for a U-shaped profile;

1b a schematic view of a side wall limb of the shielding to 1a ;

1c a schematic top view of the U-shaped shielding for 1a with a recess;

1d a spatial perspective view of 1a ;

2a the cross-sectional view of the shield according to 1a ;

2 B a cross-sectional view of the shielding element, introduced into an elongated profile in a second state;

2c a cross-sectional view of the shielding, in a first state; and

2d a spatial perspective view of 2 B ,

In 1a a cross-sectional view of a shielding element according to the embodiment of the present invention is shown. A U-shaped shielding element 10 initially consists of a lower floor area 2 and two opposite side legs 6 , In the middle of the lower floor area 2 is a movie hinge 4 formed by a notch or notch-like reduction of the wall thickness. Next is in the bottom region or the underside of the U-shaped shielding element 10 at a symmetrical distance to the film hinge 4 a recess 11 indicated.

At the corner 13 between the sidewall legs 6 and lower portion of the shielding element 2 Increased wall thickness is provided, in the sense of a stiffening or corner bracing 15 ,

Beyond a common rounding or radius, where its center is on the bisector of the lower area 2 and the sidewall leg 6 is (concave radius), such that the corner is smoothed or filled, was present in 1a in the area of the corner 13 formed an additional cross-sectional widening. The center of the radius in the area of the corner is thus at the intersection of the extension of the side wall limb 6 and the lower area 2 or the extension along the bisector further out to the outside of the U-shaped shielding 10 below the corner (convex radius).

The advantage of the larger wall thickness in the corner area lies in the higher rigidity, wherein the side legs 6 with the part of the lower floor area 2 is more firmly connected so that the film hinge as a fulcrum outgoing forces and moments can be better transmitted to the sides of the legs. This can be the side leg 6 close to the inside of the rails 88 issue. Another advantage of corner stiffening is that a constant course of the wall thickness along the side wall leg 6 is possible.

At the top of the side leg 6 is also provided an increased wall thickness, consisting of a rounding 17 with a radius 19 ,

The Advantages of the rounded end termination with geometrically defined Wall thickness increase or in a kind of rounded seam crimp are given multiple times. First, the power transmission of clamping and pressure and positive locking forces an enlarged Endkontaktfläche improved. by the way consider a slight rotation of the side leg, slightly even during operation a certain amount of time at temperature profile of the profile rail.

Next is a better fit and adjustment of the shielding 10 in the profile 88 in front. Finally, eliminates due to the better manageability and ergonomics during assembly also a possible risk of injury to the fitter for lack of otherwise possibly existing in conventional approaches sharp edges or a production-related burr. Incidentally eliminated in the advantageous design end of the side wall leg 6 as well as an otherwise required post-processing for the formation of a chamfer, the concomitant decrease in wall thickness the fit and the fit of the shielding element 2 in or in the profile 88 would question.

The sidewall legs 6 the shielding element 10 are in the lower range 8th the sidewall leg over two arms 12a and 12b bridged with each other, being in the transitional area between the two arms 12a and 12b a movie hinge 14 is trained. The poor 12a and 12b and the movie hinge 14 , mounted on the opposite side wall legs 6 in the area below 8th the side wall leg, thereby forming a bridge arrangement.

When installed, the aforementioned arms to the bottom or to the lower area 2 the U-shaped shielding element 10 be pressed down. In the installed state, a compressive force acts along the in 1a drawn vertical auxiliary line and symmetry axis 16 towards the lower area 2 the shielding element 10 directed so that the aforementioned arms to the underside of the shielding 10 pressed down and locked in this state permanently. Here, the corner regions of the shielding element are pressed to the side, so that the shielding element is clamped in the profile parts of the light band. At the same time a certain lateral force is exerted on the side walls of the light leakage preventer, so that they create the side walls of the profile parts. The shielding is fixed in the aforementioned position and at the same time it is ensured that all walls are sufficiently tight against the profile body to prevent the desired light emission.

The from the insides of the side wall legs in the interior of the shielding 10 protruding arms are relatively far below, in the lower part of the sidewall legs 8th arranged so that still, even in the assembled state of the shielding 10 , a sufficiently large space within the profile elements or rails 88 remains. By the above, it is ensured that bulbs can be arranged in this area.

1b shows a side wall or the side wall leg 6 the U-shaped shielding element 10 , where is 1a 90 degrees clockwise around the dashed in 1a drawn Symmetriemittelachse was rotated. The sidewall leg 6 has a vertical strut in the middle 26 , a line-shaped ridge or ridge. Inside the U-shaped shielding element, the side wall legs 6 also be stiffened by a grid of struts.

This results in the following advantages. First, a butt joint is formed in two contiguous profile parts, which represents an optical gap. About the taking place with a certain pressure force conditioning the outer wall of the side wall limb on the inner wall of the extruded profile or the rail 88 going out, is through the strut 26 an improved material fit also allows, in addition to the wall stiffness of the sidewall leg 6 is increased.

First, so the gap is filled during assembly and closed. Preferably, the protruding of the strut in the range of wall thickness or twice the wall thickness of the rail 88 lie. Outside of the illustration, the geometry of the wall course of the strut, which is engaged with the end faces of the butt joint initially assumed to be straight, a cross-sectional change may have further advantages.

Would you go into the plane of the sidewall leg, so the side wall in the image viewing level of 1b tilting backwards and looking in the direction along the strut, would also be a trapezoidal, triangular or a rectangular chamfered shape of the strut possible. In the case of a tapered Tra pezes, in which therefore decreases the wall thickness of the surface of the sidewall leg outgoing, in addition, a sealing force would be available on the butt joint.

Surprisingly, therefore, it is also possible to prevent the passage through the gap by the strut and the rays running parallel along the light band system, which would possibly still arrive in the gap in the case of a simple contact of a smooth surface, even with a small projection the strut over the surface of the sidewall leg 6 ,

1c shows a plan view of the fallen forward 1a , The two side wall limbs are each on the right and left outside of the by the in 1c dashed auxiliary line or axis of rotation through the film hinge 14 , wherein the outer end of the respective arms 12a respectively. 12b is connected to the corresponding sides of the sidewall legs. In the area below 2 or the underside of the U-shaped shielding element 10 a recess is provided centrally to the dashed line auxiliary line, which almost to the width of the arms 12a and 12b zoom ranges. The advantage of the smaller wall width of the arms relative to the wall width of the side wall legs is that the film hinge 14 can be released again from the detent, as under one of the arms 12a or 12b a lever z. B. can be created by a screwdriver with a long slot. In addition, by attaching a drawing missing traction element, or with the movie hinge 14 may be connected, a releasable detent can be realized.

The bridge-like arms have a perpendicular to the Auxiliary line in the middle extending web or a strut. It understands itself, that such a configuration advantageous for mechanical stabilization and increasing the surface stiffness are suitable since the surface resistance or moment of inertia, as with a T-beam increases.

1d shows a rotated spatial view of 1a in which the H-shaped spring element is in a folded position in the preparation position. The corner stiffening or bracing 15 that run along the corner between bottom and sidewall legs 6 runs, the Umkragung or rounding 17 with radius 19 at the ends of the sidewall legs, as well as the strut 26 , in the present embodiment, both vertically outside and inside the center along the side wall legs 6 runs, form a mechanically stable form, which is particularly preferred for use inside the rails 88 suitable and improved facility with the leadership 83 allowed.

2a corresponds to 1a showing the preparation position following the insertion of the shielding element 10 in the folded state according to 2c established.

2 B shows the second state of the shielding 10 , By pushing down the mechanical fixation or pushing through the two arms 12a and 12b towards the hinge 4 on the underside of the shielding element 10 for example with the thumb of the hand or with one on the hinge 14 applied hammer handle, there is a lock in which the dead center of the mechanism has been overcome. The lock remains as in 2 B plotted self-holding in the second state or a lower position with respect to 1a or 2a ,

Particularly advantageous, beyond the haptic or tactile sensory perception by power plant addition, the transition from the first to the second state when abutting the hinge 14 to the bottom 2 of the shielding element in the region of the hinge 4 a short percussive click or click noise can be generated.

On the basis of the above acoustic confirmation signal is certain that the shielding on the advantageous leadership of the struts 26 on the outside side wall legs 6 is properly installed and the assembly step has been completed. In addition, the installer can easily perceive in the absence of click-click or a slightly different sound compared to previous uses of the shielding when the shield is still outside the optimal or pass-correct position, if in rare cases, the strut 26 something should lie obliquely or parallel offset next to the butt joint. Consequently, the mounting on the light rail system 88 rapidly go from doing as a re-disassembly of the arrangement after mounting a light exit element by installing a transparent glass or plastic plate or grid reflector at the light exit opening 84 can be avoided, especially if in a light path system, the individual light exit elements are in turn connected to each other by a detachable overlap or latching connection.

It is particularly advantageous that now the side wall legs 6 close to the inner surfaces of the rails 88 abut and the interior 64 essentially kept free. The aforementioned use of the shielding is thus particularly space-saving, the mounting of the brackets for the lamps can even be done so that the lamp body elongated gas discharge lamps butt-overlapping so can be mounted between two rail profiles. In the above, therefore, the lighting system as an elongated housing profile can be laid, in which the installation of the lamp holders can be offset, or - considering the length of a profile between two joints as rail period length - with freely selectable, different or variable distance between the brackets. The aforesaid extended degree of freedom also the laying of lamps inside the rails 88 thus allows an individual adaptation, for example, to the required lighting parameters or brightness, which can thus also be formed lampvariable variable over the length of the lighting system.

2c shows the first state Z1 of the shielding element in which the ends of the sidewall legs are approximated towards the center. During assembly, the so space-saving packable folded shielding easily into the receiving space 64 or the interior of the rail 88 through the light exit opening 84 be introduced.

In 2d is the location after insertion of the shielding member seated by the strut 26 on the outer wall of the sidewall legs 6 shown in the second state Z2. The lighting system is cut free as the rail extending out of the plane of the drawing has been drawn as taken. strut 26 is as a dark black longitudinal line 82 with the face 86 the rail in plant. face 86 is through a pattern hatch in 2d indicated. The middle of the sidewall leg 6 arranged strut 26 Forms a uniform alignment and leadership of the Ab screen element with the butt joint to the adjacent rail 88 out.

The shielding element according to the invention 10 may also consist of any skilled in the art, suitable material or suitable material combinations. Preferably, it is a relatively dimensionally stable, elastic, rupturable, durable and opaque material that can be both flexible and rigid. Typical examples of suitable materials are plastics such as polypropylene, polycarbonate or polyamide, as well as comparable composite materials, wherein an admixture or a coating of the outside with rubber or foam in the sense of a multi-layer shielding element would be conceivable. As a manufacturing process extruding with simultaneous exposure to a high frequency spectrum is called. If larger forces or long butt joints are to be sealed is also a metal version with a plastic or rubber casing into consideration, so that on the one hand a good seal on the other, a mounting without scratches or grooves is possible. If necessary, a strong carbon or graphite-containing, conductive or doped plastic can be used is set to promote grounding and equipotential bonding between the profiles in a long light band system and to improve the electromagnetic compatibility. Finally, parts of the profile can also be colored or galvanized in the color of the rails.

With The present invention thus becomes a simple, elegant, custom-fit Possibility created, the butt joint area of lined profiled rails To seal so that the light emission is effectively prevented. In addition, an ergonomic fatigue-free and efficient Work on the lighting system even under difficult circumstances supported the construction site.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 19802376 A1 [0008]

Claims (11)

Lightbar system with several U-shaped rails ( 88 ) for receiving light sources, the rails ( 88 ) together an elongated light exit opening ( 84 ) and a shielding element designed to prevent the emission of light in the joint region of two adjacent rails (US Pat. 10 ), characterized in that the shielding element ( 10 ) is adapted, in a first state (Z1) of the light exit opening ( 84 ) into the recording room ( 64 ) of the rails ( 88 ) and in a second state (Z2) within the rails ( 88 ) to be stuck with these. Lighting strip system according to claim 1, characterized in that the shielding element ( 10 ) Is U-shaped, with the underside ( 2 ) the U-shape in the middle of a film hinge ( 4 ) so that the opposing sidewall legs ( 6 ) are folded inwards in the first state (Z1) and in the second state (Z2) in pressure-locking engagement with the rails (Z1) 88 ) are located. Lighting strip system according to claim 1 or 2, characterized in that the U-shaped shielding element ( 10 ) in the area of the corner ( 13 ) between sidewall legs ( 6 ) and lower area ( 8th ) of the shielding element ( 10 ) a corner reinforcement, strut or a radius ( 15 ) whose center point on the through the corner ( 13 ) extending bisector is located. Lighting system according to one of the preceding claims, characterized in that the U-shaped shielding element ( 10 ) in the region of the ends of the sidewall legs ( 6 ) a rounding ( 17 ) with a radius ( 19 ), suitable for receiving in the side wall ( 80 ) of the rail ( 88 ), some of the wall thickness of the sidewall legs ( 6 ) exceeds. Lighting system according to one of the preceding claims, characterized in that the U-shaped shielding element ( 10 ) on the outside of the sidewall legs ( 6 ) one from the end of the thighs ( 6 ) extending to the lower region strut or a linear bead ( 26 ), which is along the middle of the width of the leg ( 6 ) and in the second state (Z2) through the two adjacent rails (Z2) 88 ) formed impact area ( 86 . 82 ). Lighting system according to one of the preceding claims, characterized in that one from the end of the legs to the lower area ( 2 ) extending strut or a linear bead of the U-shaped shielding ( 10 ) on the inside of the sidewall legs ( 6 ) is trained. Lighting strip system according to one of the preceding claims, characterized in that in the lower region of the side wall limbs ( 2 ) over two arms ( 12a . 12b ) bridge-like ( 2 . 6 . 8th . 12a . 16 . 12b . 8th . 6 . 2 ), wherein in the transition region between the two inwardly facing arms ( 12a . 12b ) a film hinge ( 14 ) is trained. Lighting system according to one of the preceding claims, characterized in that the bridge-like ( 2 . 6 . 8th . 12a . 14 . 12b . 8th . 6 . 2 ) connected arms an H-shaped spring element ( 11 ), where the arms ( 12a . 12b ) T-shaped starting from the axis of rotation formed by the film hinge to the inner sides of the side wall legs ( 6 ) running, are formed. Lighting strip system according to one of the preceding claims, characterized in that in the second state (Z2), the film hinge of the H-shaped spring element ( 12a . 14 . 12b ) with the film hinge ( 14 ) in the area below ( 2 ) of the U-shaped shielding element ( 10 ) is in plant. U-shaped shielding element ( 10 ) for a trunking system ( 88 . 88 ) with a plurality of longitudinally successive U-shaped rails ( 88 ) for receiving light sources, the rails ( 88 ) together an elongated light exit opening ( 84 ) and a for preventing the light emission in the joint area of two adjacent rails ( 88 . 80 . 86 . 82 ) formed shielding element ( 10 ), characterized in that the shielding element ( 10 ) is adapted, in a first state (Z1) of the light exit opening ( 84 ) into the recording room ( 64 ) of the rails ( 88 ) and in a second state (Z2) within the rails ( 88 ) to be stuck with these. U-shaped shielding element ( 10 ) for a lighting system according to claim 10, characterized in that it is made of a plastic such as polypropylene, polycarbonate and / or polyamide.