EP0798508B1 - Procédé de fabrication d'un réflecteur à coupe transversale en V et réflecteur ayant une coupe transversale en V - Google Patents

Procédé de fabrication d'un réflecteur à coupe transversale en V et réflecteur ayant une coupe transversale en V Download PDF

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Publication number
EP0798508B1
EP0798508B1 EP97105169A EP97105169A EP0798508B1 EP 0798508 B1 EP0798508 B1 EP 0798508B1 EP 97105169 A EP97105169 A EP 97105169A EP 97105169 A EP97105169 A EP 97105169A EP 0798508 B1 EP0798508 B1 EP 0798508B1
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EP
European Patent Office
Prior art keywords
reflector
apex
shape
shaped
cross
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP97105169A
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German (de)
English (en)
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EP0798508A3 (fr
EP0798508A2 (fr
Inventor
Georg Kempter
Wolfgang Dr. Wolber
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Zumtobel Staff GmbH
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Zumtobel Staff GmbH
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Publication of EP0798508A2 publication Critical patent/EP0798508A2/fr
Publication of EP0798508A3 publication Critical patent/EP0798508A3/fr
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape

Definitions

  • the invention relates to a method and a reflector according to the The preamble of claim 1, 3, 5, 13 or 19.
  • a reflector of a luminaire that is from the light source of the luminaire reflecting outgoing light in the direction of illumination and thereby the Increase the light output of the lamp.
  • Such cross reflectors which in technical terms also with cross blades of Luminaire grids are also used for reflection and another of the at least partial glare control of the lamp.
  • a cross reflector with a V-shaped cross-section It is common to bend a cross reflector with a V-shaped cross-section from a Shape the board with the reflector walls folded around the apex of the V shape become.
  • a light V-shape is also available in the post-published WO 96/23950 A2, see also DE-A-195 03 0293, described Venetian blind provided to divide the slat into two sections, the one section as Fading optics for the overheating, high summer sun and the second section as Light directing optics are used to illuminate the depth of the room.
  • the edge between the two Parts are created with the help of two complementary rollers, whose work surfaces have a shape corresponding to the edge.
  • WO-A-96/23950 and WO-A-96/25 623 show a prior art aloud Art. 54 (3) EPC and are with the Assessment of inventive step not considered.
  • the invention has for its object a method and a reflector types specified at the outset so that a narrow width or a narrow apex, preferably the reflector walls lying against each other in the area of the vertex is reached.
  • the apex is squeezed and rolled laterally or rolled.
  • the material in the area of the apex is over its Elasticity limit, whereby a change in the structure of the material and possibly the material also flows, causing the crown to "open” causing self-elasticity eliminated or to a negligible small value is reduced.
  • the reflector walls remain essentially in the folded position by squeezing.
  • the desired alignment of the reflector walls in the area of the apex and / or in the area of the adjacent vertex edges of the reflector walls without a voltage that distances them from one another can be achieved by the inventive method Crushing, rolling or rolling, even when the Reflector walls are connected to each other by apex pieces, which in the Measures according to the invention can be included or exempted.
  • a recess is the problematic area of tension in the apex removed through the recess, making the "opening" after bending essential is reduced and the reflector walls on their formed by the recess Longitudinal edges lie together.
  • the at least one recess defined apex in a known manner with a Inner radius may be curved or crushed. The abutting of the longitudinal edges leaves reach each other in both cases.
  • one or more in the longitudinal direction of the apex to provide recesses one behind the other, whereby at least two apex pieces on the end or one or more apex pieces in the middle area are formed.
  • One, two apexes at the ends defining recess is particularly advantageous because these end Crown pieces are for an advantageous joining technique for connection with the Side walls of a longitudinal reflector are suitable for forming a luminaire grid.
  • there the apex pieces can engage behind the side walls of the longitudinal reflector, thereby they are hidden from view and only the longitudinal edges formed by the recess the reflector walls of the cross reflector are visible.
  • the apex or the Recess edge area essentially over the entire length by clamping or To squeeze the jaws.
  • the invention differs from this Rolling and rolling in that the material in one by the size of the Roll or roller predetermined short length range is claimed. hereby lower forces are required to compress or squeeze the material and there is also better deformation and flow behavior of the material.
  • the invention is further based on the task of shaping the reflector to improve its V shape.
  • the subclaims contain features that involve bending and manufacturing of the reflector can be improved by simple and inexpensive to produce Award designs and also better use of the so-called enable lost light.
  • the main parts of the ceiling or wall lamp designated 1 in FIG. 1 are a box-shaped housing 2 extending straight in its longitudinal direction with a Housing opening 3 for the light exit, a longitudinal reflector arranged in the housing 2 4 ir shape of a concave and possibly also convex, curved in the longitudinal direction the lamp 1 extending profile, which is formed in one piece or two lateral Longitudinal reflector parts or walls 4a, 4b can have several, each in one lengthways directed distance from each other arranged transverse reflectors 5, which with the Side walls of the longitudinal reflector 4 or the longitudinal reflector walls 4a, 4b connected are and an elongated, extending in the longitudinal direction of the lamp 1 Light source, e.g. a fluorescent tube 6, which at its ends in on the housing 2nd fixed sockets 7 is inserted.
  • the housing opening 3 can by a Cover made of transparent or translucent material such as glass or Plastic be covered.
  • the transverse reflectors 5 are of the same design and each have two Transverse reflector walls 5a, 5b formed, which are arranged in a vertical cross section in a V-shape are and are connected to each other in the region of the apex 8 of the V-shape.
  • This V shape by folding the longitudinal reflector walls 4a, 4b around the base of the apex 8 educated.
  • the height h at its distance from the outer apex line 8a the pinching takes place, a single or multiple of the material thickness d amount, e.g. one to five times. It is advantageous that the walls 5a, 5b in essentially only touch along the inner apex line 8b. It is special It is advantageous to only dimension the height h so that it is simple to two- or three times the material thickness d. With such a configuration the transverse reflector walls 5a, 5b only in the area of the inner apex line 8b on. The transverse reflector walls 5a, 5b diverge immediately above the concave shape given the measure.
  • the concave or parabolic rounded reflection surfaces R on the inner apex line 8b may be arranged or run so that on the inner Apex line 8b applied tangents T with respect to the vertical longitudinal center plane E 1 run in an angular range W, which is preferably dimensioned greater than 0 ° and can be up to about 14 °, in particular about 10 °. If the angle W is 0 ° is the center of curvature M of the arcuate section the associated reflective surface R in the area of the apex 8 on one extending at right angles to the longitudinal center plane E1 and in the inner apex line 8b Level E2. If the angle W is greater than 0 ° in the aforementioned range the center of curvature 35 is below the plane E2.
  • the transverse reflector 5 receives a small amount both at the apex 8 and overall Width b, B. This is advantageous for the following reasons.
  • Light source 6 is emitted hits the base (top) of the cross reflectors 5 and is lost or non-reflective surface of this base side, or it must elaborate design measures, such as special reflective surfaces (see EP 0 435 394 A1, FIG. 3), so that at least part of it reflected light is reflected so that there are no disturbing reflections the longitudinal reflector walls 4a, 4b.
  • the width B of the transverse reflectors 5 thus has Influence on the efficiency of the lamp 1 in such a way that with increasing Width B the efficiency decreases.
  • the longitudinal reflector 4 and the transverse reflectors 5 preferably consist of Aluminum sheet, with at least the reflection surfaces R with a reflective and / or glare-reducing layer is coated, preferably an anodized layer.
  • 4a to 4d show a molding process for a transverse lamella 5 in three Deformation or process steps.
  • 4a shows a transverse reflector 5 as Cutting in the form of a board P in a flat extension.
  • the transverse reflector walls 5a, 5b concave preformed or finished, which can be achieved by e.g. Bending, deep drawing or Press can be done.
  • the transverse reflector walls 5a, 5b can be in one the vertical longitudinal median plane are bent mirror-image shape, in particular each in a parabolic shape.
  • the pre-bent transverse reflector walls are 5a, 5b further bent around the apex 8, preferably in positions approximately correspond to the finished positions.
  • the deformation step 4c forms in the area of the apex 8 a fold with an inner curve, as is shown in FIG. 4c can be seen.
  • the width bl of this apex 8 is the width dimension of the hollow Rounding greater than the width b.
  • the transverse reflector 5 is passed through a crimping of the apex region into its final shape according to FIG. 3 shaped, the transverse reflector 5 in this deformation process only in the area of Vertex 8 or in the region of its transverse reflector walls 5a, 5b are deformed can, depending on the design of an associated deformation device.
  • transverse reflector 5 in one Shaping device 11 shown, which has two dies 11a, 11b, of which one or both are slidably mounted towards and away from each other.
  • the remaining parts of this deformation device 11 are for reasons of simplification not shown.
  • the preformed according to deformation step 4c is used Cross reflector 5 between the dies 11a, 11b in such a position positioned, in which the longitudinal center plane E1 of the transverse reflector 5 is perpendicular to Movement or central axis 13 of the die 11a, 11b extends.
  • the recesses 14a, 14b each have the shape and size of the associated one Reflector surface R corresponding shape surface 15a, 15b, which is a negative of Reflecting surface R.
  • the recesses 14a, 14b are Stepped surfaces extending transversely, in particular at right angles to the longitudinal center plane 12 16a, 16b arranged, the free longitudinal edges of the deformation process Limit cross reflector walls 5a, 5b.
  • the Recesses 14a, 14b arranged so that in the advanced end position of the or the shaped die 11a, 11b the shape of the shape delimited by the shaped surfaces 15a, 15b finished cross-sectional shape of the transverse reflector 5 corresponds. It is also possible that in this feed adjustment, the dies 11a, 11b abut each other at the front the present embodiment in the area starting from the outer apex line 8a Stop surfaces 18a, 18b. In the opposite area of the front of the Form stamps 11a, 11b are set back with respect to the abutment surfaces 18a, 18b End face parts 19a, 19b are provided. Like the other parts of the Deformation device 11 is also a drive for moving and Retraction of the at least one die 11a, 11b not shown.
  • the transverse reflector walls 5a, 5b have elongated wall parts 21a, 21b, whose height h1 is smaller than the height h2 Transverse reflector walls 5a, 5b, in the area of the apex 8 and in the area of the opposite free longitudinal edge recesses 22, 23 are provided, the Length dimensions L1, L2 to the shape of the longitudinal reflector walls 4a, 4b are adapted with which the front ends of the transverse reflector walls 5a, 5b Inserting the wall parts 21a, 21b in plug-in recesses 23 and folding the Wall parts 21a, 21b are attached to the outer sides of the longitudinal reflector walls 4a, 4b.
  • Fig. 6 a special embodiment is shown, the one Partial utilization of this amount of light lost per se allows, this Embodiment is realized with a longitudinal reflector 4, the one to the outside bent or angled edge flange 24 facing away from the light source Has edge region of the longitudinal reflector walls 4a, 4b.
  • a preferably angularly extending Light guide 25 is provided, the first end of the light source 25a facing the Area between the transverse reflector walls 5a, 5b is by the associated Plug-in recess 23a extends to the outside of the associated longitudinal reflector wall 4b and then bent or angled through a recess 26 in the edge flange 24 extends, the light guide 25 with its second end 25b preferably the Edge flange 24 protrudes. This can be done by bent or folded Edge flange leg 24a to be stabilized.
  • the base i.e. the The top of the transverse reflectors 5 wholly or partially with a black stripe cover.
  • the second end 25b with its end face is at this curvature adjusted so that it extends approximately parallel to the curvature.
  • the second end 25b can also have a different shape.
  • Such light guides 25 can in the Practice be LISA elements. The one received by the first ends 25a per se lost light is emitted at the second ends 25b, e.g. as phosphorescent light shimmer. This will not only increase the light output but also improves the design of the lamp 1.
  • Such a light guide 25 can e.g. consist of transparent or translucent material such as glass or plastic. In the presence of such light guides and a cover of the base are in the latter Provide recesses so that light can reach the light guides.
  • angular light guide 25 a flat or cuboid light guide from the to arrange materials already mentioned on the edge flange 24 and in a suitable manner Way to fix, e.g. by gluing.
  • Edge flange 24 can be arranged in the recess 26.
  • This can be a flexible or flexible film in the form of a film or around a film in the form a solid layer in the sense of a thin disc.
  • the attachment can also in a suitable manner, e.g. by gluing.
  • the apex 8 has a continuous Recess 27 or more, one behind the other in the longitudinal direction Recesses 27, whose height h3 is a few mm and in one area between the wall thickness d of the cross reflector 5 and a little more, e.g. between the Can be one to three or five times the wall thickness d. 7 are the Front end areas of the recess 27 shown as an example as a rectangle.
  • the longitudinal edges 27a of the transverse reflector walls 5a, 5b formed by the recess can, however, also take the form of a preferably concave arc exhibit.
  • the cross-sectional shape of the transverse reflector 5 according to FIGS. 7 and 8 corresponds to that 3, but the one shown in FIG The apex plane E2 is approximately at the height of the longitudinal edges 27a, 27b, and wherein the other angles are the same.
  • the length L3 of the recess 27 or the length L4 of the Vertex pieces 8c taking into account the corresponding external distance c Longitudinal reflector walls 4a, 4b to be dimensioned so that they are in contact with the Longitudinal reflector walls 4a, 4b are mounted outside and thus part of the Wall parts 21a, 21b are.
  • the inner shoulder surfaces 8d are the apex pieces 8c taking into account the material thickness of the associated longitudinal reflector wall 4a, 4b so that they are outside the reflector walls 4a, 4b and, if necessary, can rest on the outside against the associated longitudinal reflector wall 4a, 4b.
  • the recess 27 is preferably made after bending the reflector walls 5a, 5b for the purpose of their curvature by a transverse punching of the crown 8 made.
  • the reflector walls 5a, 5b already connected to each other, preferably in the area of the apex pieces 8c. at this method, the reflector walls 5a, 5b can be made from two separate sheet metal parts getting produced.
  • the recess 27 in the board P, from which the Reflector 5 is bent pre-punched. Then the board is so in the sense of Description to FIGS. 4a to 4d bent and preferably Vertex pieces 8c also crimped so that the edges 27a, 27b are at a common height against one another.
  • the longitudinal reflector 4 and / or the Cross reflectors 5 made of bright or anodized aluminum sheet with matt or shiny surface or reflective surface. It is also possible To use sheet steel. In both cases it is also advantageous to use the surface or Paint the reflective surface with white paint, using a paint or otherwise formed coating can be matt or glossy.
  • the device for producing transverse reflectors 5 due to a special rolling process, the following devices or units have the are arranged one behind the other.
  • This device 31 serves for transverse reflectors 5 according to FIG. 2 or here according to FIG. 7 by a special rolling process in which the respective transverse reflector 5 from a flat starting material, e.g. one sheet, through several successive rolling operations are deformed into the V-shape. It can be are pieces cut into pieces or a strip material that is in the course of continuous production from a supply and continuously or is passed through the device 31 in strokes.
  • the main components of the device 1 are in the direction of passage 32 thereof the following:
  • a rotary bearing 33 for a strip supply 34 provided on which the stock 34 is freely or rotatably supported by a drive and of which a flat strip 35 in the form of a sheet metal strip, e.g. made of aluminum, rollable is.
  • a drive device 36 can be located behind the supply 34 provided upper and lower, against the flat belt 35 drive rollers his. It is also possible to use a straightening device for straightening the To provide ribbon 34.
  • the punch 37 may be stationary in the direction 32 Act tool, the process is controlled so that the punching process when the feed of the flat belt 35 stops for a short time.
  • the punch 37 is in or on a Guide 39 back and forth along the passage direction 32 by a drive 41 displaceable, the advance being carried out at a speed that the Feed speed of the flat belt 35 corresponds and the punching process at Advance movement of the punch 37 takes place.
  • that will be Punching tool 37 is preferably moved back at a higher speed in order to next advance in a suitable place the next punching in the flat band 35 to install.
  • transverse reflectors 5 are used in the present exemplary embodiment 7 produced in the device 31.
  • the production of cross reflectors 5 2 takes place in basically the same way.
  • a rolling device 42 is located behind the punching tool 37 or punching area first type, which serves to flat strip 35 into a cross-sectional shape according to FIG. 4b (see also Fig. 10) or 4e (different shape of the rolls).
  • This bending process takes place between two rollers 43a, 43b, which are convex along their axial surface lines and concave have a shape that corresponds to the curvature of the transverse reflector walls 5a, 5b equivalent.
  • the deformation can be directed transversely to the direction of passage, i.e. effective pressure on the broad sides of the flat belt 35.
  • a rolling device 42 is a second one Arranged in the manner in which the now preformed band 35 during preforming 10 in several deformation steps in the V-shape shown in Fig. 4d is formed between a pair of rollers.
  • This causes the Band 35 about the central axis of the joint, wherein the apex 8 is formed.
  • the Deformation in the rolling device 46 of the second type can be in several successive deformation steps take place, whereby from deformation step to Deforming the band 35 into the V shape of an increasingly smaller angle (W, W in Fig. 3) until the final V-shape is reached. In the present embodiment this deformation takes place in four deformation steps each on the roller pairs R1, R2, R3, R4.
  • the roles R of each pair of roles are each the same.
  • the in the rolling device 42 of the first type formed shape of the final curvature of the side walls 5a, 5b of the Corresponding to the transverse reflector 5 all four pairs of rollers R1 to R4 are in shape their surface lines 47 are of the same design.
  • the pairs of roles differ from each other by the angles W1, W4 enclosed between their axes of rotation 48.
  • At the Passage of the belt 35 through the pairs of rollers R1 to R4 takes place in the front End region of this deformation, e.g. on the last pair of rollers R4, a side one Crushing the crown 8 by the rolling process (Fig. 12).
  • the Hold-down device 49 is a narrow upright web, which is on the inner surface of the apex 8 abuts and forms a sliding or guiding surface 51 which lifts the band 34 prevented in this area because the sliding surface limits such movement.
  • a stamping tool 52 shown in simplified form with a lower tool part 52a and an upper tool part 52b in the form of a Knife 52b arranged that already in relation to the punch 37 described way and can work mechanically, e.g. by a Articulated rod 53 connected to the drive 41 of the punch 37 and thus by can be driven by a common drive.
  • the knife 52b serves the as far as shaped and by a small connecting portion 35a of the band 35th to separate contiguous transverse reflectors 5 from each other by separating cuts.
  • the transverse reflectors 5 are not a removable tape 35 but a prefabricated one Cutting in the form of a board P according to FIG. 4a. to use.
  • a board requires in the device 31 a feed device that it in the direction of passage 32 leads to the respective device and on.
  • the cross reflectors 5 a tube, e.g. a profile bar to use that by means of one or more roller pairs R 5 arranged one behind the other in FIG. 14 is deformed into the V-shape by rollers, the in this embodiment in Cross-section triangular cross reflector 5 has an upper wall 5c, the the walls 5a, 5b is integrally connected and the rolled triangular tubular shape forms.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Planar Illumination Modules (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (19)

  1. Procédé de fabrication d'un réflecteur en coupe transversale en V (5) pour une lampe, en particulier d'un réflecteur transversal (5) pour une lampe oblongue (1), constitué d'un larget (P),
    caractérisé en ce que
    le larget (P) est préalablement plié d'abord pour former la pointe (8) du V dans sa zone centrale, et en ce qu'ensuite les deux parties de larget (5a, 5b) formées par la pointe (8) sont, dans la zone de pointe (8), aux deux côtés de niveau central longitudinal du V, pincées ensemble par une pression latérale de pincement de telle sorte qu'on obtient une pointe (8) étroite et, le cas échéant, également pointue.
  2. Procédé selon la revendication (1),
    caractérisé en ce que
    les parties de larget (5a, 5b) sont préalablement pliées ou pliées pour finition avant ou pendant ou après le pliage préalable du larget (P) dans la zone de sa pointe (8) d'une courbe concave ou parabolique dont l'axe de courbure (M) est parallèle à la pointe (8).
  3. Procédé de fabrication d'un réflecteur en coupe transversale en V (5) pour une lampe (1), en particulier d'un réflecteur transversal (5) pour une lampe oblongue (1), dans lequel le réflecteur (5) est formé dans un matériau de départ dont la forme transversale se distingue de la forme transversale en V du réflecteur (5),
    caractérisé en ce que
    la pointe (8) est roulée ou laminée entre un rouleau (R) ou un cylindre et une culée ou entre deux rouleaux (R4; R6) ou des cylindres, les deux parties de larget (5a, 5b) formées par la pointe (8) étant, dans la zone de pointe (8), aux deux côtés de niveau central longitudinal du V, pincées ensemble par une pression latérale de pincement de telle sorte qu'on obtient une pointe (8) étroite et, le cas échéant, également pointue.
  4. Procédé selon la revendication 3,
    caractérisé en ce que
    la pointe (8) est laminée dans le sens de sa longueur.
  5. Procédé de fabrication d'un réflecteur en coupe transversale en V (5) pour une lampe (1), en particulier d'un réflecteur transversal (5) pour une lampe oblongue (1), dans lequel le réflecteur (5) est formé dans un matériau de départ dont la forme transversale se distingue de la forme transversale en V du réflecteur (5),
    caractérisé en ce que
    le V est roulé dans le sens longitudinal du réflecteur, au moyen de rouleaux agencés aux deux côtés du niveau central longitudinal du V.
  6. Procédé selon la revendication 5,
    caractérisé en ce que
    le V est roulé au moyen de plusieurs paires de rouleaux (R1 à R4) agencées les unes derrière les autres dans le sens de la hauteur libre (32) en plusieurs paliers qui se distinguent les uns des autres par la grandeur de coupe transversale.
  7. Procédé selon l'une des revendications 3 à 6,
    caractérisé en ce que
    le laminage de la pointe (8) s'effectue après ou lors du passage aux rouleaux du V, en particulier lors du passage aux rouleaux du dernier ou de l'avant-dernier palier (R4).
  8. Procédé selon l'une des revendications 3 à 7,
    caractérisé en ce que
    le matériau de départ est amené pendant le passage aux rouleaux du V et/ou pendant le passage aux rouleaux ou laminage de la pointe (8) de son côté situé en face de la pointe.
  9. Procédé selon la revendication 8,
    caractérisé en ce que
    le matériau de départ est amené sur le côté situé en face du côté intérieur de la pointe (8).
  10. Procédé selon l'une des revendications précédentes 3 à 9,
    caractérisé en ce que
    le réflecteur (5) est formé ou roulé dans un matériau de départ transversalement plat ou en forme de profil creux ou en forme de tube.
  11. Procédé selon l'une des revendications précédentes 3 à 10,
    caractérisé en ce que
    le V est formé d'une bande continue et après le processus de mise en forme, la bande est mise en pièces correspondant à la longueur respective du réflecteur (5).
  12. Procédé selon la revendication 11,
    caractérisé en ce que
    lors de l'utilisation d'un matériau de départ plat, avant le laminage ou le passage aux rouleaux, au moins une découpe ou des entailles (22;23;27) sont effectuées aux extrémités ou dans la zone centrale du réflecteur (5) encore à achever, en ce que le V est formé sur une découpe totale ou sur de petites découpes contiguës aux découpes de liaison (55), et en ce qu'après le passage aux rouleaux, la bande contiguë est mise dans les longueurs souhaitées des réflecteurs (5).
  13. Réflecteur (5) pour une lampe (1), en particulier réflecteur transversal (5) pour une lampe oblongue (1), constitué de deux parois de réflecteur (5a, 5b) agencées en V qui sont reliées entre elles dans la zone de la pointe (8) du V,
    dans la zone de la pointe (8) un creux (27) qui traverse les deux parois de réflecteur (5a, 5b) étant agencé et qui est limité sur leurs deux côtés par des sections de pointe (8c) et les bords (27a, 27b) des parois de réflecteur (5a, 5b) formant le fond du creux (28) étant situées l'une près de l'autre,
    caractérisé en ce que
    les parois de réflecteur (5a, 5b) sont formées par le pli d'un larget (P) dans la zone de la pointe (8) et étant reliées les unes aux autres d'un seul tenant.
  14. Réflecteur selon la revendication 13,
    caractérisé en ce que
    les bords (27a, 27b) formant le fond de creux (28) sont droits ou présentent une forme dérivant d'une droite, par exemple sont recourbés de manière concave.
  15. Réflecteur selon la revendication 13 ou 14,
    caractérisé en ce que
    la longueur (L3) du creux (27) est plus grande ou égale à la distance extérieure (c) des parois de réflecteur (4a, 4b) d'un réflecteur longitudinal (4) présentant le réflecteur transversal (5).
  16. Réflecteur selon l'une des revendications 13 à 15,
    caractérisé en ce que
    le pli des sections de pointe (8c) est pincé.
  17. Réflecteur selon la revendication 16,
    caractérisé en ce que
    le pincement s'étend sur toute la zone en hauteur (h3) des sections de pointe (8c) jusqu'aux bords (27a, 27b) des parois de réflecteur (5a, 5b).
  18. Réflecteur selon l'une des revendications 13 à 16,
    caractérisé en ce que
    les surfaces extérieures des parois de réflecteur (5a, 5b) sont recourbées de manière concave ou parabolique, l'axe de courbure (M) étant parallèle à la pointe (8).
  19. Procédé de fabrication d'un réflecteur (5) selon l'une des revendications 13 à 18, un larget (P) étant plié en V dans sa zone centrale,
    caractérisé en ce que
    le creux (27) étant achevé avant le pliage par découpe du larget (P) ou après le pliage par découpe de la pointe (8).
EP97105169A 1996-03-27 1997-03-26 Procédé de fabrication d'un réflecteur à coupe transversale en V et réflecteur ayant une coupe transversale en V Expired - Lifetime EP0798508B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19612197 1996-03-27
DE19612197A DE19612197A1 (de) 1996-03-27 1996-03-27 Verfahren zum Herstellen eines im Querschnitt V-förmigen Reflektors für eine Leuchte und ein im Querschnitt V-förmiger Reflektor

Publications (3)

Publication Number Publication Date
EP0798508A2 EP0798508A2 (fr) 1997-10-01
EP0798508A3 EP0798508A3 (fr) 1998-04-15
EP0798508B1 true EP0798508B1 (fr) 2002-10-30

Family

ID=7789641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97105169A Expired - Lifetime EP0798508B1 (fr) 1996-03-27 1997-03-26 Procédé de fabrication d'un réflecteur à coupe transversale en V et réflecteur ayant une coupe transversale en V

Country Status (3)

Country Link
EP (1) EP0798508B1 (fr)
AT (1) ATE227012T1 (fr)
DE (2) DE19612197A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19840718A1 (de) * 1998-09-07 2000-03-30 Thorn Licht Gmbh Leuchtenraster sowie Verfahren zur Herstellung lackierter Kanten von Teilen von Leuchtenrastern
DE29923835U1 (de) 1999-04-07 2001-04-05 Zumtobel Staff Gmbh Beleuchtungsanordnung zur Anbringung an der Decke oder einer Wand eines Raumes
DE20310704U1 (de) * 2003-07-11 2003-10-30 AVS Geschäftsführungs- und Beteiligungs GmbH, 41352 Korschenbroich Elektrische Leuchte
DE102019118557A1 (de) * 2019-07-09 2021-01-14 Chromasens Gmbh Zweidimensionales Beleuchtungssystem

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE65599C (de) * B. C. J. KÜCKEN in Berlin N„ Brunnenstr. 82 d Verfahren zur Herstellung T förmiger Trageisen für Fenstersprossen u. dergl. aus Blech
DE544497C (de) * 1929-11-14 1932-02-18 Saechsische Cartonnagen Maschi Vorrichtung zur Herstellung von Einfass-Schienen fuer Koffer o. dgl.
AT305583B (de) * 1971-06-22 1973-03-12 Tte Krems Ges M B H Leichtbau-Trägerprofil sowie Verfahren und Vorrichtung zu dessen Herstellung
FR2298057A1 (fr) * 1975-01-17 1976-08-13 Cegedur Paralume presentant une bonne tenue au feu
DE7616743U1 (de) * 1976-05-25 1977-01-27 Heinemann, Herbert, 7533 Eutingen Profiliermaschine fuer metallbleche
DE3005762C2 (de) * 1980-02-15 1981-10-29 Siemens AG, 1000 Berlin und 8000 München Leuchtenraster mit gekrümmten Außenreflektoren
JPS57106439A (en) * 1980-12-24 1982-07-02 Tokyo Electric Co Ltd Manufacture of plate part for lighting apparatus
DK161346C (da) * 1988-02-18 1991-12-02 Elselskabet Riegens A S Fremgangsmaade og apparat til fremstilling af tyndpladeemner saasom reflektorer til lysroersarmaturer
DK0435394T3 (da) * 1989-12-27 1995-05-01 Philips Nv Belysningsarmatur
DE4243659A1 (de) * 1992-12-23 1994-06-30 Licentia Gmbh Metallraster für eine Leuchte
NL9400927A (nl) * 1994-06-08 1996-01-02 Johan Massee Werkwijze en inrichting voor het vormen van een rand aan een lampreflector.
DE19503293A1 (de) * 1995-02-02 1996-08-08 Spl Solar Patent Lizenz Holdin Gekantete Jalousielamelle
ATE192562T1 (de) * 1995-02-14 2000-05-15 Koninkl Philips Electronics Nv Leuchte

Also Published As

Publication number Publication date
EP0798508A3 (fr) 1998-04-15
DE59708591D1 (de) 2002-12-05
EP0798508A2 (fr) 1997-10-01
ATE227012T1 (de) 2002-11-15
DE19612197A1 (de) 1997-10-02

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