FI67617B - BELYSNINGSARMATURGALLER MED BOEJDA YTTRE REFLEKTORER - Google Patents

Description

1 67617

Lamp grille with curved exterior reflectors

The invention relates to a slatted lamp grille in the preamble of the main claim.

5 In such a luminaire grid, known from DE-A-2 655 702, each transverse lamella is connected at three points to the outer reflector, the latter engaging the corresponding slots in the transverse lamella. In this case, however, the walls of the transverse lamella must be pressed against each other during installation and then fastened to their fastening position with an additional cover strip to ensure a proper connection. Thus, at the same time, it is ensured that the walls of the transverse lamella are against the edges of the groove of the outer reflector, so that the desired shape of the transverse lamella is determined in this way.

In contrast, however, the desired shape of the outer reflector is determined only by the slits of the transverse lamella, i.e. only by two points, so that the shape of the thin outer reflectors, which bend easily during installation, often differs from the desired one.

It is an object of the invention to further develop a luminaire grid as described at the beginning so as to guarantee a rigid and strong connection between the transverse lamellae and the external reflectors by simple manufacture and installation and the easily achievable shape of the transverse lamellae and side reflectors.

According to the invention, this object is solved by the features of claim 1.

The invention provides a very durable and rigid connection 30 between the transverse lamellae and the external reflector, which is also due to the fact that very small manufacturing tolerances are possible in the invention without making installation difficult. Each transverse lamella only needs to insert the outer reflector into its notch 35 from its lower transverse slot and then pivot about this pivot point into the recess 2 6761 7 until it abuts the wall of the guide slots and first presses against the protrusions and after reaching the desired position against the edges of the notches. In this case, it is not necessary to bend the walls in advance and not to use additional fasteners.

In the luminaire grid known from DE 2 833 010, the exterior reflector rests on a transverse lamella from three points, but a certain and sufficiently precise shape with very small manufacturing tolerances can only be achieved by a complex installation work.

There is also room for hope in the strength of the joint, because you would cross! the spring strips in the cells easily slip through the notches in the outer reflectors, as the transverse plates are slightly pushed out of the 90 ° position, which is necessary when installing long gratings. When making transverse lamellae, it must also be taken into account that the spring strips cannot be compressed when the V-shaped profile is bent. In contrast, in the present invention, the transverse lamellae have only slits which do not interfere with bending.

DE-A-2 723 665 also discloses a joint between V-shaped, intersecting lamellae, in which the desired shape is secured by projections which engage the corresponding notches of the other lamellae.

25 But here the lamella is inserted from above into an open notch, whereby the walls of the lamellae press against each other so far that they pass over the protrusions. Correspondingly, the walls of the transverse lamellae, in their desired position, rest only resiliently on the edges of the notches.

The invention will be explained in more detail on the basis of dry ones, which also show an exemplary embodiment in which other preferred embodiments also set out in the subclaims are implemented. The figures are then limited to showing the essential parts for connecting the transverse plates and the outer reflector.

3 6761 7

Figure 1 shows a transverse plate wall side elevational view-na, the outer reflector passage shown in broken line, Figure 2 shows a transverse plate end view of the arrow II in figure 1 in the direction 5 Figure 3 is an arrow transverse plate top view III of figure 2, Figure 4 shows a transverse plate of the upper longitudinal edge and the wall of the transverse edge on a larger scale than the transition point, and Fig. 5 shows a part of the outer reflector comprising a section for a transverse plate.

The two approximately V-shaped walls 21, 22 of the transverse plate 2 form a transverse edge 20 at the bottom, in which short, upwardly directed ones are left.

15 transverse slits 201. Their width is approximately the same as the thickness of the corresponding external reflector, denoted by the number 1, and their inclination corresponds to the inclination of the external reflector. Here, for each transverse plate, there is a section 10 with continuously curved side edges 101 against which the walls 21, 22 of the transverse plate 20 rest so that their curvature is determined by the contour of the edges of the section 10. For this purpose, there are two guide slots 100 at the upper end of the section 10. Each of these guide slots is bounded by an outer edge 103 which is an extension of the edge 101 of the section 10 and an inner edge 104. The latter forms an acute downward angle with the outer edge 103 at least part of its length. a wedge-shaped guide slot is created, the end piece of which has approximately parallel edges, the distance of which corresponds to the thickness of the walls of the transverse plate.

Further, protruding projections 1C5 protrude outwardly from the contour of the notch 10 approximately the thickness of the walls of the transverse plates. These protrusions are located in the upper third of the notch.

The formation of the transition point from the upper longitudinal edge 203 of each wall of each transverse plate to the transverse edge 204 is clearly seen in particular in Figure 4. At this transition point . This is followed by a response step 206 which extends approximately tangentially to the surface of the outer reflector 1 'at that point. The retaining edge 205 has such a distance from the bottom of the corresponding transverse slot 201 that the transverse plate 2 pu-10 placed in the cut 10 is crossed by the guide slot 100 acting on the retaining surface 205 against the lower edge 102 of the cut 10. In this setting position, the transverse plate then remains due to the projections 105 which, in the setting position, are locked in the corresponding closing slots 202 in the walls 21, 22 of the transverse plates.

These closing slots are located in the same way as the stop step 206 and the transverse slot 201 in the arc along which the outer reflector 1 is to be directed. Preferably, in the prefabrication, the outer reflector 1 is bent on the arc slightly more strongly, so that after joining with the transverse plates, the le-20 ends under prestressing against the abutment step 206 and the transverse gap 201.

To connect the outer reflector 1 to the transverse plate 2, the latter is first inserted into its lower edge 25 102 by means of its transverse slit 201 and then turned around this point into the cut 10, whereby the wedge-shaped guide slots 100 automatically engage the inclined sloping surfaces 200. the retaining surfaces 205 30 of the walls 21, 22 into end pieces delimited by parallel edges. In this case, the walls are tightened by means of and on the projections 105. In the final position, the projections 105 then protrude through the closure slots 202, whereby the walls 21, 22 are resilient against the edges 101 of the cut.

Claims (6)

6761 7 5 A lamp grille with curved outer reflectors (1,1 ') and transverse lamellae (2) running transversely to each other, each of which is inserted into the outer reflectors (1,1 ·) through corresponding notches (10) and has two an approximately V-shaped bent wall (21,22) pressed against the edges (101) of the notch (10) and thus defining the desired contours of the transverse lamellae (2), the lower edge of each notch (10) of the outer reflectors (1,1 ') (102) protrudes into a transverse slot (201) of one transverse lamella extending upwards from its lower edge, and in addition the notch (1C) has protrusions (105) which engage a corresponding, correspondingly sized closing slot 15 (202) of the transverse lamellae (2), characterized in that that each notch (10) in the outer reflector (1,1 ') has two upwardly directed guide slots (100) in the region of its upper end, the width of which corresponds to the thickness of the walls (21, 22) of the transverse lamellae (2), the outer edges of these guide slots (100) 20 transverse lamellae the desired contours and the height of the guide slots are dimensioned so that the outer reflector (1, 1 remains in the setting position of the transverse lamella (2) in its transverse slit (201) so that the closing slit in each wall (21, 22) of the transverse lamellae (2) 202) is arranged in its upper half between the transverse slit (201) and the response stage (206) of the outer reflector (1,1 ') so that each correspondingly biased side reflector (1,1') is resiliently tensioned on the other hand in the closing gap (202) and between the transverse gap (201) and the abutment step (206) and thus have obtained the desired profile, and that the height of the protrusions (105) in the notches (10) of the side reflectors (1,1 ') belonging to the closure slots (202) corresponds only approximately to the transverse lamellae ( 2) material strength. 6,67617 Luminaire grille according to claim 1, characterized in that the inner edge (104) of each guide slot (100) extends at least in its lower area at an acute angle to the opposite edge (103), so that the guide slot (100) extends wedge-shaped upwards. Luminaire grille according to one of Claims 1 to 2, characterized in that each wall (21, 22) of the transverse mell (2) has an oblique bottom-to-up oblique edge between its upper longitudinal edge (203) and its transverse edge (204). (200) (Figure 4). Luminaire grille according to Claim 3, characterized in that each oblique edge (200) at its upper end becomes a retaining edge (205) which is approximately 15 perpendicular to the surface part resting at that point of the outer reflector (1). 6761 7 1. A reflector according to the invention of a reflector (1,1 ') and headed to the ground by means of a fifth reflector (2), which can be used as a strainer (10) and a reflector (1), 1 ') and up to V-shaped headforms (21,22), with tricks in the bodywork (10) edge (101) and in the case of bodywork lamps (2) self-contained contours, colors not exceeding 10 edges (102) of the color of the bodywork (10) with a reflector (1,1 ') sticker in the envelope (201) with an envelope (second), the sticker in the envelope (105), griper in i coordinerade, lika Stora spärrslitsar (202) av 15 tvärlamellerna (2), kännetecknat därav, att varje urtagning (10) i enttre reflector (1,1 ') ) in the case of brackets with a maximum of 20 liters (100) in the case of a reflector (2) with its own contours and dimensions of the reflector (1,1 ') with a reflector (2) in the case of a reflector (201), with a reflector (202) and a shield (21,22) of a second reflector (2) and a shelf of the second reflector (1,1 ') and a shielding reflector (1) , 1 ') a spindle with a splitter (202) and a spout (201) and a splitter (206) with a splitter and a spout 30 having a profile in which the splitter (202) is coordinated (105) i sidoreflektorernas (1,1 ') urtagningar (10) motsvarar bara ungefär tvärlamellernas (2) materialtjocklek.