EP1584864B1 - Reflector for a lamp with an adjustable reflector body and a lamp with such reflector - Google Patents

Reflector for a lamp with an adjustable reflector body and a lamp with such reflector Download PDF

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Publication number
EP1584864B1
EP1584864B1 EP05006170A EP05006170A EP1584864B1 EP 1584864 B1 EP1584864 B1 EP 1584864B1 EP 05006170 A EP05006170 A EP 05006170A EP 05006170 A EP05006170 A EP 05006170A EP 1584864 B1 EP1584864 B1 EP 1584864B1
Authority
EP
European Patent Office
Prior art keywords
reflector
luminaire
upper edge
lamp
edge region
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.)
Not-in-force
Application number
EP05006170A
Other languages
German (de)
French (fr)
Other versions
EP1584864A3 (en
EP1584864A2 (en
Inventor
Gerald Ladstätter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZUMTOBEL LIGHTING GmbH
Original Assignee
Zumtobel Lighting GmbH Austria
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP1584864A2 publication Critical patent/EP1584864A2/en
Publication of EP1584864A3 publication Critical patent/EP1584864A3/en
Application granted granted Critical
Publication of EP1584864B1 publication Critical patent/EP1584864B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/107—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using hinge joints
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/10—Construction
    • F21V7/16—Construction with provision for adjusting the curvature
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
    • 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
    • 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
    • F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Definitions

  • the invention relates to a reflector or a lamp according to the preamble of claim 1 or 2.
  • a reflector of this kind it is the purpose of a reflector of this kind to reflect as much as possible of the portion of the light that emits a lamp into the space to be illuminated. Since conventional lamps radiate the light essentially on all sides, this applies to the area of the lamp, which does not face the room directly. To remove the light from the lamp in its remaining area, i. In their area facing away from the space to be able to reflect radiated light, known reflectors have a dome-shaped cross-sectional shape, wherein an associated socket is arranged in such a position that a lamp seated therein in the cavity, in particular in the upper region of this cavity, is arranged.
  • the design of the reflector in its ridge region is problematic for several reasons. This is partly due to the lamp itself or its version, because it requires an opening in the ridge region of the reflector in order to mount or dismount the reflector at a built-in lamp of the radiating aperture of the lamp or the lamp after installation of the Reflector to connect with the socket. To ensure this, it is customary to ensure a recess of such a size in the ridge region of the reflector that either the reflector with the recess can be moved over the lamp or the lamp can be connected to the socket through the recess. Although this recess allows the assembly, but they are the reflection surface of the reflector and thereby reduces the utilization of the radiated light of the lamp. Another disadvantage of this known embodiment is that the opening in the ridge area of the room to be illuminated is visible as a dark spot, which should be avoided.
  • luminaires it is also customary to radiate part of the light for indirect illumination toward the side facing away from the emission opening, with a ceiling light upwards, for indirect illumination of the room.
  • the US 4,007,365 discloses a reflector for a luminaire consisting of a lower fixed part and an upper movable part, which is connected to the lower part by means of a hinge so that an upper opening of the reflector can be narrowed or expanded.
  • the invention is therefore based on the object, a reflector or a lamp of the types described above in such a way that the reflector is adaptable to different requirements with respect to the light guide at least in its ridge area.
  • the reflector according to the invention has at least two reflector walls which bound below at least a part of a light passage opening, and which are interconnected by grid elements, wherein the reflector is made in one piece from plastic.
  • At least one of the reflector walls in this case has at least one upper edge region, which is adjustable relative to the other reflector wall.
  • the upper edge region is adjustable between a first position, which is closer to the center axis of the passage opening, and a second position, which is more remote from the central axis, in particular pivotable or bendable.
  • the upper edge region may be plastically adjustable or against an elastic restoring force, e.g. Own elasticity, be adjustable
  • the reflector can be adjusted transversely to the central axis of the passage opening at least in its upper edge region of its reflector wall and adapted to different requirements.
  • a request may e.g. be temporarily to create a free space in the ridge region of the reflector wall in order to mount or dismount the reflector from the transmission opening and thereby move the reflector with the outwardly adjusted edge region of the lamp and then in a lamp engaging behind the position, to reduce the free space and increase the reflection area.
  • adjustable upper edge region namely to provide an upper clearance of optional size through which a portion of the light radiated by the lamp radiates and may be used as indirect lighting for the space.
  • the upper edge region can be plastically adjustable with such an intrinsic rigidity that there is no special one Fixing device in each set position required.
  • a fixing device may be formed by a clamping device or latching device.
  • a joint that allows a back and forth directed pivoting of the edge region.
  • Such a joint can be realized in various embodiments.
  • An advantageous and cost-effective production is that to form joint by weakening the material of the reflector wall, preferably by a material taper.
  • the embodiment of the invention is particularly well suited for a reflector made of plastic.
  • the joint can be formed in a simple and cost-effective manner as a film hinge.
  • the reflector and the upper edge region made of plastic.
  • the upper edge region can be integrally connected to the reflector wall.
  • Such a configuration can be formed in a simple and advantageous manner with a joint, which is formed by a material weakening or tapering, in particular by a film hinge.
  • the embodiment of the invention is suitable for a reflector with only one reflector wall or with two oppositely arranged reflector walls, wherein the at least one reflector wall may extend straight in the longitudinal direction and may be formed by a profile.
  • the reflector designated in its entirety by 1 is a light-influencing part, which on the one hand serves to reflect light emitted by a lamp 2 substantially on all sides to a passage opening 3 and into a space 4 to be illuminated.
  • the light is illustrated by a resulting main beam 5, which passes through the lower passage opening 3 and extends into the space 4 to be illuminated.
  • the main parts of the reflector 1 are two opposite and with respect to a vertical center plane E preferably mirror-symmetrically arranged reflector side walls 6, which are formed in a reflector 1 with a horizontal cross-section round or rounded cross-sectional shape by a peripheral wall and a reflector 1 with a in the horizontal cross-section rectangular or elongated cross-sectional shape by two mutually parallel, possibly elongated, side walls 6 are formed, which may be formed by profiles.
  • At the transversely to the side walls 6 extending possibly narrow-sided end faces of the reflector can be arranged with the side walls 6 connected end walls 7.
  • the free interior of the reflector 1 may preferably be subdivided by substantially vertical raster elements 8, which serve to partially glare the light 5 and, for example, by extending transversely between the side walls 8 raster lamellae or by annular raster cells with round in cross-section round or rounded or square cross-sectional shape can be formed.
  • substantially vertical raster elements 8 which serve to partially glare the light 5 and, for example, by extending transversely between the side walls 8 raster lamellae or by annular raster cells with round in cross-section round or rounded or square cross-sectional shape can be formed.
  • a so-called cell grid is known per se and eg in the DE 101 51 958 Al, to which reference is made in its entirety.
  • the side walls 6 have an S-shaped curved cross-sectional shape, so that their inner reflection surfaces 6a are concave in the upper region and convexly curved in the lower region.
  • horizontally projecting flanges 9 are arranged at least at the lower edges 6b of the side walls, which can be circumferentially in the circumferential direction also on the end walls 7.
  • outwardly projecting flanges 11 are arranged, which among other things serve to stabilize the reflector 1.
  • the upper edges 7a are preferably concave in the shape of a channel, the side walls 6 projecting beyond the end walls 7.
  • the upper edges 6c of the side walls 6 may have a horizontal distance from each other, or abut one another on a longitudinally extending groove 12.
  • At least one side wall 6, preferably both side walls 6, have on an extending in the circumferential direction or in the longitudinal direction longitudinal section, for example over its entire length, an upper edge portion 6d, in the embodiment by a top edge 7a of the end walls 7 projecting portion the side walls 6 is formed.
  • the edge region 6d is adjustable between one of the central axis 13 of the passage opening 3 or the reflector 1 approximated or adjacent first position and a farther from the central axis 13 second position, as it Fig. 1 eg clarified in three positions.
  • the upper edge region 6d is pivotable relative to the remaining lower edge region 6e between the first and the second position.
  • one joint 14 connecting the upper edge region and the remaining or lower edge region 6e with a hinge axis 14a extends in the circumferential direction of the reflector 1 or the luminaire or in the longitudinal direction of the side walls 6.
  • the joint 14 can be realized in various configurations. It can be realized for example by hinge parts with at least one hinge pin.
  • the joint 14 is formed by a material weakening of the respective side wall 6.
  • the material weakening leads to a reduction of the bending resistance of the side wall 6 in the region of the joint 14, so that the side wall 6 is selectively bendable in the area of material weakening, here inwards or outwards.
  • the material weakening can be formed, for example, by a perforation of the side wall 6 extending in the longitudinal direction of the articulation axis 14a.
  • the material weakening or the joint 14 is formed by a material taper, in particular by a so-called.
  • Film hinge in which the side wall 6 tapers to a thin strip or a thin band is that preferably connects the edge portions 6d, 6e integrally with each other.
  • the at least one lamp 2 which may be formed by an elongate reflector 1 through one or more tubes arranged one behind the other, or at least one associated connection means 10 for the lamp 2 is located in the upper region of the cavity 3a between the side walls 6, wherein the cavity bounded by the dome-shaped side walls 6 and limited by the upper edge regions 6d.
  • the at least one or two oppositely arranged Connection means 10 may each be formed by a downwardly extending web 10 a, which has mechanical and electrical connection elements for connecting the lamp 2.
  • the side wall 6 such that its upper edge region 6d is elastically or plastically adjustable inwards and / or outwards and in each case back again, e.g. deformable or bendable.
  • the ductility is limited to a small upright portion of the side wall 6a, which portion forms the hinge 14.
  • this area has the weakening of material forming the joint 14, which is e.g. by the material rejuvenation already described, e.g. in the form of a film hinge, or may be formed by a perforation extending in the circumferential direction of the reflector 1 or the lamp or in the longitudinal direction of the side wall 6.
  • the joint 14 through a material region which is elastically or plastically deformable than the deformability of the upper edge region 6d and of the remaining edge region 6e.
  • the side wall 6 also in the region of the joint 14 have the same thickness, wherein the reflection surface 6a may be substantially continuous with respect to their curvature and rear or projections can be avoided.
  • plastics which allow the side wall 6 to be bent once or more inwards or outwards in the sense according to the invention without a break occurring.
  • a plastic is e.g. Polypropylene (PP).
  • the adjustability of the at least one side wall 6 is advantageous with regard to several aspects.
  • One aspect is to place the reflector 1 in an in Fig. 1 suggestively and in Fig. 3 left exemplified box-shaped housing 15 to be able to mount in its entirety 16 designated light.
  • one or more connecting devices 17 may each be arranged one behind the other in the circumferential direction on both sides of the housing 15.
  • the invention makes it possible to mount the reflector 1 in a position of its upper edge regions 6d, in which the upper edges 6c have a distance a from one another which is greater than the cross-sectional size of the lamp 2 or the connection means 10 (FIG. Fig. 3 ).
  • This makes it possible to insert the reflector 1 with the upper edge regions 6d with mounted lamp 2 or mounted connection means 10 into the housing 15 and during or after the insertion inward to a position in which they at least one connection means 10 and which engage behind at least one lamp 2.
  • the side walls 6 or their upper edge regions 6d may be formed so long that their free edges 6c abut one another in their inwardly displaced positions ( Fig. 3 ) or a distance a from each other ( Fig. 1 ).
  • Fig. 3 inwardly displaced positions
  • Fig. 1 a distance from each other
  • Another aspect concerning the significance of the adjustability of at least one upper edge region 6d is as follows.
  • luminaires with indirect illumination of the room it is customary to radiate a part of the light emitted by the at least one lamp 2 through at least one light-transmitting area towards the back of the luminaire or towards the ceiling.
  • the amount of light for the indirect illumination is dependent on the size of the light passage to the rear side, wherein the passage may be formed by a larger opening or a plurality of smaller openings in the upper region of the at least one side wall 6 and the housing 15.
  • the embodiment according to the invention Optionally determine the proportion of light for indirect illumination by adjusting and adjusting at least one end portion 6d to a particular position.
  • a prescribed cell grid is preferably made of plastic, which is a one-piece molded part.
  • the spray technique does not allow the upper edge portions 6d to be directed inward.
  • the edge areas are directed outwards. It would also be possible to direct the edge areas upwards, so that the injection-molded part can be pulled out of the mold.
  • the embodiment according to the invention makes it possible to inject the reflector 1 in a form in which the upper edge regions 6d extend upwards to the outside, and in which they can be removed from the mold without difficulty.
  • the upper edge regions 6d are then preferably moved or pivoted inwards from their upwardly directed position into a reflection position, in which they form upper reflection regions of the reflector 1 and extend as far as the ridge and can abut one another with their edges 6c or Distance a from each other may have.
  • a fixing device 18 is preferably provided, e.g. may be formed by a latching device and with a latching lug 18a which is movable, in particular bendable, between a latching position and a release position, e.g. engages behind the front edge or the free edge 6e of the upper edge portion 6d.
  • the Verrastungsnase 18a is formed on a web 19 directed upwards, which protrudes from the remaining edge portion 6e to the outside and can be integrally connected thereto, for example in one piece the side wall 6 can be injection-molded. It can the Web 19 may be arranged only in the end regions of the edge region 6e or extend over the entire length of the edge region 6e.
  • At least one fixing device 18 is arranged in the inwardly directed adjustment end position, eg on a web 21 upstanding from the associated end wall 7 or from its flange 11, from which the associated latching nose 18a also projects upwards and the free edge 6c or the front edge (not shown) of the upper edge portion 6d engages behind and can be bent to solve the connection.
  • Both webs 19, 21 may also form a stop 22 for limiting the swiveling out or pivoting movement, according to the embodiment Fig. 4 through the top of the web 19 and in the embodiment according to Fig. 5 may be formed by an upper edge of the web 21.
  • This embodiment is suitable e.g. for indirect lighting.
  • the housing 16 in the region of the peripheral wall 15a or longitudinal side wall 15c and / or ceiling wall 15b is at least partially translucent.
  • the film hinge joints 14 according to the Fig. 1 to 3 and 5 on the one hand and the Fig. 4 on the other hand are designed differently.
  • the film or the band is located between the inner lower peripheral edge of the upper edge region 6d and the upper outer peripheral edge of the remaining edge region 6e.
  • the upper edge region 6d is offset outwardly with respect to the remaining edge region 6e, see in particular Fig. 2 .
  • the film may be narrow in terms of its upward width in the sense of a string or a band.
  • the film is formed by an upwardly extending thin strip whose width b may be equal to or greater than the thickness d of the edge portion 6d and which extends from the lower inner peripheral edge of the upper edge portion 6d and the upper inner peripheral edge of the remaining edge portion 6e ,
  • the edge regions 6d, 6e are not transversely offset from each other, so that in the position of the upper edge region 6d, in which it continues in the upward upward extension of the remaining edge region 6e, a non-transverse offset continuously continuous reflection surface 6a is formed.
  • the reflector 1 is shown mounted in the housing 15 in the lamp designated in its entirety by 16.
  • the horizontal cross-sectional shape of the housing 15 may be, for example, round or square, wherein the housing 15 has a correspondingly shaped peripheral wall 15a extending from a ceiling wall 15b.
  • longitudinal side walls 15c opposite to one another and end walls 15d connecting them to one another or only the longitudinal side walls 15c may be provided.
  • a stop 22 may be formed by the upper edge of an associated web 21, as it Fig. 3 shows.
  • the upper edge region 6d is limited by the guide device 23 and thus locked between the latter and the stop 22 in the Ausschwenkraum upwards.
  • an inner stop 22 can be omitted, because the abutment of the upper edges 6c forms such a stop 22.
  • the guide device 23 is formed by an upwardly convergent in the region of the left half of the housing or housing corner, for example obliquely, extending web 23a, which may be attached to the peripheral wall 15a or longitudinal side wall 15c and / or top wall 15b. It is also possible to fasten the guiding device 23 or the web 23a to the associated housing end wall 15d.
  • the web 23a is in such a position that upon insertion of the reflector 1 from below, the free edge 6c of the upper edge portion 6d abuts against the convergent inside of the web 23a and upon further insertion inward in the in Fig. 3 illustrated end position is adjusted or pivoted.
  • the top wall 15b in the ridge region can actuate as a further horizontal guide web 23b, which performs a forwarding in Einschwenkend Scheme or forms a fixing device 18 in combination with the juxtaposition of the free edges 6c.
  • the secantial contact point 23c between the guide web 23a and the upper edge region 6d is preferably located in a distance c offset relative to the joint 14 towards the free edge 6c.
  • the connecting device 17 may be formed by a latching device, which allows the reflector 1 when inserted into the housing 15 in its Einschubendwolf to lock and solve by a handling friendly applied increased retraction force again, the latching device automatically triggers.
  • a latching device is in Fig. 3 shown simplified on the left and preferably right and arranged the same and mirror image and formed (only partially shown).
  • a plurality of connecting devices 17 or latching devices 25 can be arranged on each side opposite one another, for example in the end regions.
  • the latching device in each case has a latching nose 25b, which is formed or arranged on a laterally elastically deflectable spring leg 25a, and engages behind a latching projection in the latching position and springs into a latching recess 25c.
  • the locking lug 25b one of Catching surface 25e opposite arranged rounded or inclined insertion surface 25d, which causes an automatic bending out of the spring leg 25a during insertion.
  • the locking surface 25e of the locking lug 25b is formed so that by a manual, the weight of the reflector 1 substantially exceeding tensile force of the reflector 1 is released from its latching, the spring legs 25a are bent automatically and the locking lugs 25b the reflector Release 1 and then spring back to their latch ready position.
  • the spring legs 25a are attached at their lower or upper ends indirectly or directly to the inside of the lower portion of the peripheral wall 15a and longitudinal side walls 15c, wherein the spring legs 25a extend with their free ends up or down.
  • the latching recess 25c is formed by a cam 25f, the upper side of which limits the recess on the underside and can preferably form an inclined execution surface, and whose lower side can form an oppositely inclined insertion surface.
  • the cam may be formed in two parts or preferably in one piece on the side wall 6 outside.
  • the mirror image opposite other edge regions 6e at least in the region of longitudinal sections of opposite side regions 26a of a rounded channel 26 and formed by side portions 27a of downwardly extending from the channel 26 sleeve-shaped cells 27 whose peripheral walls pass through the channel 26.
  • the lower edges of the sleeve-shaped cells 27 can pass through a lower base plate 28.
  • the upper edge regions 6d of the channel 26 are adjustable or pivotable with respect to the lower or remaining edge regions 6e of the channel 26 in the above-described sense.
  • the reflector 1 which is preferably produced in one piece from plastic and is also shaped in particular by injection molding, has two light passage openings 3a, 3b arranged one above the other at the upper and lower edge of the cells 27.
  • the adjustability of the upper edge region 6d can also be achieved by virtue of the fact that the upper edge region 6d or the remaining region 6e of the reflector wall 6 or an intermediate region between them (not illustrated) consists of a plastic or elastic material deformable or flexible plastic is produced or injection-molded, for example in two- or three-component injection molding.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

The reflector (1) for a lamp with at least one light source (2) comprises a reflector wall (6) with upper sections (6d) which are adjustable relative to the rest (6e) of the reflector wall. An independent claim is also included for a lamp with the proposed reflector.

Description

Die Erfindung betrifft einen Reflektor oder eine Leuchte nach dem Oberbegriff des Anspruchs 1 oder 2.The invention relates to a reflector or a lamp according to the preamble of claim 1 or 2.

Es ist der Zweck eines Reflektors dieser Art, möglichst viel des Anteils des Lichtes, das eine Lampe abstrahlt, in den zu beleuchtenden Raum hinein zu reflektieren. Da übliche Lampen das Licht im wesentlichen allseitig abstrahlen, gilt dies für den Bereich der Lampe, der dem Raum nicht direkt zugewandt ist. Um das von der Lampe in deren übrigem Bereich, d.h. in ihrem dem Raum abgewandten Bereich, abgestrahlte Licht reflektieren zu können, weisen bekannte Reflektoren eine domförmige Querschnittsform auf, wobei eine zugehörige Fassung in einer solchen Position angeordnet ist, dass eine darin sitzende Lampe im Hohlraum, insbesondere im oberen Bereich dieses Hohlraums, angeordnet ist.It is the purpose of a reflector of this kind to reflect as much as possible of the portion of the light that emits a lamp into the space to be illuminated. Since conventional lamps radiate the light essentially on all sides, this applies to the area of the lamp, which does not face the room directly. To remove the light from the lamp in its remaining area, i. In their area facing away from the space to be able to reflect radiated light, known reflectors have a dome-shaped cross-sectional shape, wherein an associated socket is arranged in such a position that a lamp seated therein in the cavity, in particular in the upper region of this cavity, is arranged.

Die Ausgestaltung des Reflektors in seinem Firstbereich ist aus mehreren Gründen problematisch. Dies ist zum einen durch die Lampe selbst bzw. deren Fassung bedingt, weil es einer Öffnung im Firstbereich des Reflektors bedarf, um den Reflektor bei einer eingebauten Lampe von der Abstrahlöffnung der Leuchte her montieren bzw. demontieren zu können oder die Lampe nach dem Einbau des Reflektors mit der Fassung verbinden zu können. Um dies zu gewährleisten ist es üblich, im Firstbereich des Reflektors eine Ausnehmung in einer solchen Größe zu gewährleisten, dass entweder der Reflektor mit der Ausnehmung über die Lampe bewegbar ist oder die Lampe durch die Ausnehmung hindurch mit der Fassung verbindbar ist. Diese Ausnehmung ermöglicht zwar die Montage, jedoch werden durch sie die Reflektionsfläche des Reflektors und dadurch auch die Ausnutzung des abgestrahlten Lichts der Lampe verringert. Ein weiterer Nachteil dieser bekannten Ausgestaltung besteht darin, dass die Öffnung im Firstbereich vom zu beleuchtenden Raum her als dunkler Fleck sichtbar ist, was vermieden werden soll.The design of the reflector in its ridge region is problematic for several reasons. This is partly due to the lamp itself or its version, because it requires an opening in the ridge region of the reflector in order to mount or dismount the reflector at a built-in lamp of the radiating aperture of the lamp or the lamp after installation of the Reflector to connect with the socket. To ensure this, it is customary to ensure a recess of such a size in the ridge region of the reflector that either the reflector with the recess can be moved over the lamp or the lamp can be connected to the socket through the recess. Although this recess allows the assembly, but they are the reflection surface of the reflector and thereby reduces the utilization of the radiated light of the lamp. Another disadvantage of this known embodiment is that the opening in the ridge area of the room to be illuminated is visible as a dark spot, which should be avoided.

Bei Leuchten ist es auch üblich, einen Teil des Lichts für eine indirekte Beleuchtung zur der Abstrahlöffnung abgewandten Seite hin, bei einer Deckenleuchte nach oben, für eine indirekte Beleuchtung des Raumes abzustrahlen. Hierzu ist es bekannt, im Firstbereich des Reflektors und eines Gehäuses der Leuchte wenigstens eine Öffnung oder einen lichtdurchlässigen Bereich anzuordnen, durch die bzw. den hindurch das Licht für die indirekte Beleuchtung abstrahlen kann.In the case of luminaires, it is also customary to radiate part of the light for indirect illumination toward the side facing away from the emission opening, with a ceiling light upwards, for indirect illumination of the room. For this purpose, it is known to arrange at least one opening or a translucent area in the ridge area of the reflector and a housing of the luminaire, through which or through which the light for the indirect illumination can radiate.

Die US 4 007 365 offenbart einen Reflektor für eine Leuchte bestehend aus einem unteren fixen Teil und einem oberen beweglichen Teil, welcher an dem unteren Teil mittels eines Gelenkes so verbunden ist, dass eine obere Öffnung des Reflektors verengt oder erweitert werden kann.The US 4,007,365 discloses a reflector for a luminaire consisting of a lower fixed part and an upper movable part, which is connected to the lower part by means of a hinge so that an upper opening of the reflector can be narrowed or expanded.

Der Erfindung liegt deshalb die Aufgabe zugrunde, einen Reflektor oder eine Leuchte der eingangs angegebenen Arten so auszugestalten, dass der Reflektor wenigstens in seinem Firstbereich an unterschiedliche Anforderungen bezüglich der Lichtführung anpassbar ist.The invention is therefore based on the object, a reflector or a lamp of the types described above in such a way that the reflector is adaptable to different requirements with respect to the light guide at least in its ridge area.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 oder 2 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben.This object is solved by the features of claim 1 or 2. Advantageous developments of the invention are described in the subclaims.

Der erfindungsgemäße Reflektor weist mindestens zwei Reflektorwände auf, die unten zumindest einen Teil einer Lichtdurchtrittsöffnung begrenzen, und die durch Rasterelemente miteinander verbunden sind, wobei der Reflektor einstückig aus Kunststoff gefertigt ist. Wenigstens eine der Reflektorwände weist dabei mindestens einen oberen Randbereich auf, der gegenüber der übrigen Reflektorwand verstellbar ist. Bei einer bevorzugten Ausgestaltung ist der obere Randbereich zwischen einer der Mittelachse der Durchtrittsöffnung angenäherten ersten Stellung und einer der Mittelachse entfernteren zweiten Stellung verstellbar, insbesondere schwenkbar oder biegbar. Dabei kann der obere Randbereich plastisch verstellbar sein oder gegen eine elastische Rückstellkraft, z.B. Eigenelastizität, verstellbar seinThe reflector according to the invention has at least two reflector walls which bound below at least a part of a light passage opening, and which are interconnected by grid elements, wherein the reflector is made in one piece from plastic. At least one of the reflector walls in this case has at least one upper edge region, which is adjustable relative to the other reflector wall. In a preferred embodiment, the upper edge region is adjustable between a first position, which is closer to the center axis of the passage opening, and a second position, which is more remote from the central axis, in particular pivotable or bendable. In this case, the upper edge region may be plastically adjustable or against an elastic restoring force, e.g. Own elasticity, be adjustable

Der Reflektor lässt sich wenigstens in seinem oberen Randbereich seiner Reflektorwand quer zur Mittelachse der Durchtrittsöffnung verstellen und an verschiedene Anforderungen anpassen. Eine Anforderung kann z.B. sein, einen Freiraum im Firstbereich der Reflektorwand vorübergehend zu schaffen, um den Reflektor von der Durchstrahlöffnung her montieren bzw. demontieren zu können und dabei den Reflektor mit dem nach außen verstellten Randbereich an der Lampe vorbei und dann in eine die Lampe hintergreifende Position zu bewegen, um den Freiraum zu verkleinern und die Reflektionsfläche zu vergrößern.The reflector can be adjusted transversely to the central axis of the passage opening at least in its upper edge region of its reflector wall and adapted to different requirements. A request may e.g. be temporarily to create a free space in the ridge region of the reflector wall in order to mount or dismount the reflector from the transmission opening and thereby move the reflector with the outwardly adjusted edge region of the lamp and then in a lamp engaging behind the position, to reduce the free space and increase the reflection area.

Eine andere Forderung kann durch den verstellbaren oberen Randbereich ebenfalls erfüllt werden, nämlich einen oberen Freiraum wahlweiser Größe zu schaffen, durch den hindurch ein Teil des von der Lampe abgestrahlten Lichts strahlt und als indirekte Beleuchtung für den Raum genutzt werden kann.Another requirement may also be met by the adjustable upper edge region, namely to provide an upper clearance of optional size through which a portion of the light radiated by the lamp radiates and may be used as indirect lighting for the space.

Im Rahmen der Erfindung kann der obere Randbereich mit einer solchen Eigenstreifigkeit plastisch verstellbar sein, dass es keiner besonderen Fixiervorrichtung in der jeweils eingestellten Stellung bedarf. Es ist jedoch vorteilhaft, den oberen Randbereich in wenigstens einer Endstellung oder in einer jeweils eingestellten Zwischenstellung durch eine Fixiervorrichtung zu fixieren, so dass er sich ungewollt nicht verstellt. Eine solche Fixiervorrichtung kann durch eine Klemmvorrichtung oder Verrastungsvorrichtung gebildet sein.In the context of the invention, the upper edge region can be plastically adjustable with such an intrinsic rigidity that there is no special one Fixing device in each set position required. However, it is advantageous to fix the upper edge region in at least one end position or in an respectively set intermediate position by a fixing device, so that it does not move unintentionally. Such a fixing device may be formed by a clamping device or latching device.

Es ist zur Verbesserung der Verstellbarkeit vorteilhaft zwischen dem verstellbaren Randbereich und der übrigen Reflektorwand ein Gelenk anzuordnen, dass ein hin und her gerichtetes Schwenken des Randbereichs ermöglicht. Ein solches Gelenk lässt sich in verschiedenen Ausgestaltungen verwirklichen. Eine vorteilhafte und kostengünstige Herstellung besteht darin, dass Gelenk durch eine Materialschwächung der Reflektorwand zu bilden, vorzugsweise durch eine Materialverjüngung. Die erfindungsgemäße Ausgestaltung eignet sich besonders gut für einen aus Kunststoff bestehenden Reflektor. Insbesondere bei einem solchen Reflektor lässt sich das Gelenk in einfacher und kostengünstiger Weise als Filmscharnier ausbilden.It is advantageous for improving the adjustability between the adjustable edge region and the rest of the reflector wall to arrange a joint that allows a back and forth directed pivoting of the edge region. Such a joint can be realized in various embodiments. An advantageous and cost-effective production is that to form joint by weakening the material of the reflector wall, preferably by a material taper. The embodiment of the invention is particularly well suited for a reflector made of plastic. In particular, in such a reflector, the joint can be formed in a simple and cost-effective manner as a film hinge.

Es ist im übrigen vorteilhaft, den Reflektor und den oberen Randbereich aus Kunststoff herzustellen. Dabei kann der obere Randbereich einteilig mit der Reflektorwand verbunden sein. Eine solche Ausgestaltung lässt sich in einfacher und vorteilhafter Weise mit einem Gelenk ausbilden, das durch eine Materialschwächung oder -verjüngung gebildet ist, insbesondere durch ein Filmscharnier.It is also advantageous to manufacture the reflector and the upper edge region made of plastic. In this case, the upper edge region can be integrally connected to the reflector wall. Such a configuration can be formed in a simple and advantageous manner with a joint, which is formed by a material weakening or tapering, in particular by a film hinge.

Die erfindungsgemäße Ausgestaltung eignet sich für einen Reflektor mit nur einer Reflektorwand oder mit zwei einander gegenüberliegend angeordneten Reflektorwänden, wobei die wenigstens eine Reflektorwand sich in der Längsrichtung gerade erstrecken kann und durch ein Profil gebildet sein kann.The embodiment of the invention is suitable for a reflector with only one reflector wall or with two oppositely arranged reflector walls, wherein the at least one reflector wall may extend straight in the longitudinal direction and may be formed by a profile.

Die vorbeschriebenen Vorteile gelten auch für eine Leuchte mit einem erfindungsgemäßen Reflektor.The advantages described above also apply to a luminaire with a reflector according to the invention.

In weiteren Unteransprüchen sind Merkmale enthalten, die die Verstellbarkeit und die Herstellbarkeit verbessern, eine kostengünstige Herstellung gewährleisten und ferner eine handhabungsfreundliche Fixierung des Randbereichs in der jeweils eingestellten Position ermöglichen.In further sub-claims include features that improve the adjustability and manufacturability, ensure cost-effective production and also allow a handling-friendly fixation of the edge region in the respective set position.

Nachfolgend werden vorteilhafte Ausgestaltungen der Erfindung anhand eines bevorzugten Ausführungsbeispiels und Zeichnungen näher erläutert. Es zeigt

Fig. 1
einen erfindungsgemäßen Reflektor in der Seitenansicht bzw. Stirnansicht;
Fig. 2
die in Fig. 1 mit X gekennzeichnete Einzelheit im vertikalen Querschnitt;
Fig. 3
eine erfindungsgemäße Leuchte im vertikalen Querschnitt mit einem erfindungsgemäßen Reflektor, wobei rechts eine besondere Einbaustellung dargestellt ist;
Fig. 4
die Einzelheit X in weiter abgewandelter Ausgestaltung;
Fig. 5
die Einzelheit X in weiter abgewandelter Ausgestaltung;
Fig. 6
einen erfindungsgemäßen Reflektor in weiter abgewandelter Ausgestaltung in perspektivischer Unteransicht.
In the following advantageous embodiments of the invention will be explained in more detail with reference to a preferred embodiment and drawings. It shows
Fig. 1
a reflector according to the invention in side view and end view;
Fig. 2
in the Fig. 1 with X marked detail in vertical cross-section;
Fig. 3
a luminaire according to the invention in vertical cross-section with a reflector according to the invention, wherein a special installation position is shown on the right;
Fig. 4
the detail X in a further modified embodiment;
Fig. 5
the detail X in a further modified embodiment;
Fig. 6
a reflector according to the invention in a further modified embodiment in a perspective bottom view.

Der in seiner Gesamtheit mit 1 bezeichnete Reflektor ist ein Lichtbeeinflussungsteil, dass zum einen dazu dient, von einer Lampe 2 im wesentlichen allseitig abgestrahltes Licht zu einer Durchtrittsöffnung 3 und in einen zu beleuchtenden Raum 4 hinein zu reflektieren. Das Licht ist durch einen resultierenden Hauptstrahl 5 verdeutlicht, der die untere Durchtrittsöffnung 3 durchquert und sich in den zu beleuchtenden Raum 4 hineinerstreckt.The reflector designated in its entirety by 1 is a light-influencing part, which on the one hand serves to reflect light emitted by a lamp 2 substantially on all sides to a passage opening 3 and into a space 4 to be illuminated. The light is illustrated by a resulting main beam 5, which passes through the lower passage opening 3 and extends into the space 4 to be illuminated.

Die Hauptteile des Reflektors 1 sind zwei einander gegenüberliegend und bezüglich einer vertikalen Mittelebene E vorzugsweise spiegelsymmetrisch angeordnete Reflektor-Seitenwände 6, die bei einem Reflektor 1 mit einer im horizontalen Querschnitt runden oder gerundeten Querschnittsform durch eine Umfangswand gebildet sind und bei einem Reflektor 1 mit einer im horizontalen Querschnitt rechteckigen oder langgestreckten Querschnittsform durch zwei sich parallel zueinander erstreckende, ggf. langgestreckte, Seitenwände 6 gebildet sind, die durch Profile gebildet sein können. An den sich quer zu den Seitenwänden 6 erstreckenden ggf. schmalseitigen Stirnseiten des Reflektors können mit den Seitenwänden 6 verbundene Stirnwände 7 angeordnet sein. Der freie Innenraum des Reflektors 1 kann vorzugsweise durch im wesentlichen vertikale Rasterelemente 8 unterteilt sein, die zur teilweisen Entblendung des Lichtes 5 dienen und z.B. durch sich quer zwischen den Seitenwänden 8 erstreckende Rasterlamellen oder durch ringförmige Rasterzellen mit im horizontalen Querschnitt runder oder gerundeter oder viereckiger Querschnittsform gebildet sein können. Ein sogenannter Zellenraster ist an sich bekannt und z.B. in der DE 101 51 958 Al beschrieben, worauf im vollen Umfang Bezug genommen wird.The main parts of the reflector 1 are two opposite and with respect to a vertical center plane E preferably mirror-symmetrically arranged reflector side walls 6, which are formed in a reflector 1 with a horizontal cross-section round or rounded cross-sectional shape by a peripheral wall and a reflector 1 with a in the horizontal cross-section rectangular or elongated cross-sectional shape by two mutually parallel, possibly elongated, side walls 6 are formed, which may be formed by profiles. At the transversely to the side walls 6 extending possibly narrow-sided end faces of the reflector can be arranged with the side walls 6 connected end walls 7. The free interior of the reflector 1 may preferably be subdivided by substantially vertical raster elements 8, which serve to partially glare the light 5 and, for example, by extending transversely between the side walls 8 raster lamellae or by annular raster cells with round in cross-section round or rounded or square cross-sectional shape can be formed. A so-called cell grid is known per se and eg in the DE 101 51 958 Al, to which reference is made in its entirety.

Beim Ausführungsbeispiel weisen die Seitenwände 6 eine S-förmig gekrümmte Querschnittsform auf, so dass ihre inneren Reflektionsflächen 6a im oberen Bereich konkav und im unteren Bereich konvex gekrümmt sind.In the embodiment, the side walls 6 have an S-shaped curved cross-sectional shape, so that their inner reflection surfaces 6a are concave in the upper region and convexly curved in the lower region.

Beim Ausführungsbeispiel sind wenigstens an den unteren Rändern 6b der Seitenwände 6 horizontal abstehende Flansche 9 angeordnet, die sich in der Umfangsrichtung umlaufend auch an den Stirnwänden 7 befinden können. Außerdem sind beim vorliegenden Ausführungsbeispiel an den oberen Rändern 7a der Stirnwände 7 nach außen abstehende Flansche 11 angeordnet, die unter anderem der Stabilisierung des Reflektors 1 dienen.In the exemplary embodiment 6 horizontally projecting flanges 9 are arranged at least at the lower edges 6b of the side walls, which can be circumferentially in the circumferential direction also on the end walls 7. In addition, in the present embodiment at the upper edges 7a of the end walls 7 outwardly projecting flanges 11 are arranged, which among other things serve to stabilize the reflector 1.

Die oberen Ränder 7a sind vorzugsweise rinnenförmig konkav geformt, wobei die Seitenwände 6 die Stirnwände 7 nach oben überragen. Dabei können die oberen Ränder 6c der Seitenwände 6 einen horizontalen Abstand voneinander aufweisen, oder an einer sich in der Längsrichtung erstreckenden Fuge 12 aneinanderliegen.The upper edges 7a are preferably concave in the shape of a channel, the side walls 6 projecting beyond the end walls 7. In this case, the upper edges 6c of the side walls 6 may have a horizontal distance from each other, or abut one another on a longitudinally extending groove 12.

Wenigstens eine Seitenwand 6, vorzugsweise beide Seitenwände 6, weisen auf einem sich in der Umfangsrichtung oder in der Längsrichtung erstreckenden Längsabschnitt, z.B. auf ihrer gesamten Länge, einen oberen Randbereich 6d auf, der beim Ausführungsbeispiel durch einen den oberen Rand 7a der Stirnwände 7 überragenden Abschnitt der Seitenwände 6 gebildet ist. Der Randbereich 6d ist zwischen einer der Mittelachse 13 der Durchtrittsöffnung 3 oder des Reflektors 1 angenäherten oder anliegenden ersten Stellung und einer von der Mittelachse 13 weiter entfernten zweiten Stellung verstellbar, wie es Fig. 1 z.B. in drei Positionen verdeutlicht. Beim Ausführungsbeispiel ist jeweils der obere Randbereich 6d bezüglich dem übrigen unteren Randbereich 6e zwischen der ersten und der zweiten Stellung schwenkbar. Hierzu dient jeweils ein den oberen Randbereich und den übrigen bzw. unteren Randbereich 6e miteinander verbindendes Gelenk 14 mit einer Gelenkachse 14a, die sich in der Umfangsrichtung des Reflektors 1 oder der Leuchte bzw. in der Längsrichtung der Seitenwände 6 erstreckt.At least one side wall 6, preferably both side walls 6, have on an extending in the circumferential direction or in the longitudinal direction longitudinal section, for example over its entire length, an upper edge portion 6d, in the embodiment by a top edge 7a of the end walls 7 projecting portion the side walls 6 is formed. The edge region 6d is adjustable between one of the central axis 13 of the passage opening 3 or the reflector 1 approximated or adjacent first position and a farther from the central axis 13 second position, as it Fig. 1 eg clarified in three positions. In the exemplary embodiment, in each case the upper edge region 6d is pivotable relative to the remaining lower edge region 6e between the first and the second position. For this purpose, in each case one joint 14 connecting the upper edge region and the remaining or lower edge region 6e with a hinge axis 14a extends in the circumferential direction of the reflector 1 or the luminaire or in the longitudinal direction of the side walls 6.

Das Gelenk 14 lässt sich in verschiedenen Ausgestaltungen realisieren. Es lässt sich z.B. durch Scharnierteile mit wenigstens einem Gelenkbolzen realisieren. Beim Ausführungsbeispiel ist das Gelenk 14 durch eine Materialschwächung der jeweiligen Seitenwand 6 gebildet. Die Materialschwächung führt zu einer Verringerung des Biegewiderstandes der Seitenwand 6 im Bereich des Gelenks 14, so dass die Seitenwand 6 im Bereich der Materialschwächung wahlweise biegbar ist, hier nach innen oder nach außen. Die Materialschwächung kann z.B. durch eine in der Längsrichtung der Gelenkachse 14a verlaufende Perforation der Seitenwand 6 gebildet sein. Vorzugsweise ist die Materialschwächung bzw. das Gelenk 14 durch eine Materialverjüngung, insbesondere durch ein sog. Filmscharnier, gebildet, bei dem die Seitenwand 6 bis auf einen dünnen Streifen oder ein dünnes Band verjüngt ist, der bzw. das die Randbereiche 6d, 6e vorzugsweise einteilig miteinander verbindet.The joint 14 can be realized in various configurations. It can be realized for example by hinge parts with at least one hinge pin. In the exemplary embodiment, the joint 14 is formed by a material weakening of the respective side wall 6. The material weakening leads to a reduction of the bending resistance of the side wall 6 in the region of the joint 14, so that the side wall 6 is selectively bendable in the area of material weakening, here inwards or outwards. The material weakening can be formed, for example, by a perforation of the side wall 6 extending in the longitudinal direction of the articulation axis 14a. Preferably, the material weakening or the joint 14 is formed by a material taper, in particular by a so-called. Film hinge, in which the side wall 6 tapers to a thin strip or a thin band is that preferably connects the edge portions 6d, 6e integrally with each other.

Die wenigstens eine Lampe 2, die bei einem langgestreckten Reflektor 1 durch eine oder mehrere hintereinander angeordnete Röhren gebildet sein kann, bzw. wenigstens ein zugehöriges Anschlussmittel 10 für die Lampe 2 befindet sich im oberen Bereich des Hohlraums 3a zwischen den Seitenwänden 6, wobei der Hohlraum durch die domförmig angeordneten Seitenwände 6 begrenzt bzw. durch die oberen Randbereiche 6d begrenzbar ist. Beim Ausführungsbeispiel befindet sich wenigstens ein Anschlussmittel 10 für die Lampe 2 im mittleren Höhenbereich zwischen den oberen Rändern 6c und 7a der Seitenwände 6 und der Stirnwände 7 oder im wesentlichen in der Höhe des bzw. der Gelenke 14. Das wenigstens eine oder zwei einander gegenüberliegend angeordnete Anschlussmittel 10 kann bzw. können jeweils durch einen sich nach unten erstreckenden Steg 10a gebildet sein, der mechanische und elektrische Verbindungselemente zum Verbinden der Lampe 2 aufweist.The at least one lamp 2, which may be formed by an elongate reflector 1 through one or more tubes arranged one behind the other, or at least one associated connection means 10 for the lamp 2 is located in the upper region of the cavity 3a between the side walls 6, wherein the cavity bounded by the dome-shaped side walls 6 and limited by the upper edge regions 6d. In the embodiment, there is at least one connecting means 10 for the lamp 2 in the middle height range between the upper edges 6c and 7a of the side walls 6 and the end walls 7 or substantially at the level of the joints or joints 14. The at least one or two oppositely arranged Connection means 10 may each be formed by a downwardly extending web 10 a, which has mechanical and electrical connection elements for connecting the lamp 2.

Es gibt mehrere Möglichkeiten, die Seitenwand 6 so auszugestalten, dass ihr oberer Randbereich 6d elastisch oder plastisch nach innen und/oder nach außen und jeweils wieder zurück verstellbar ist, z.B. verformbar oder biegbar ist. Bei den vorliegenden Ausführungsbeispielen ist die Verformbarkeit bzw. Biegbarkeit auf einen kleinen sich aufrecht erstreckenden Bereich der Seitenwand 6a begrenzt, wobei dieser Bereich das Gelenk 14 bildet. Dabei weist dieser Bereich die das Gelenk 14 bildende Materialschwächung auf, die z.B. durch die bereits beschriebene Materialverjüngung, z.B. in Form eines Filmscharniers, oder durch eine Perforation gebildet sein kann, die sich in der Umfangsrichtung des Reflektor 1 bzw. der Leuchte oder in der Längsrichtung der Seitenwand 6 erstreckt. Es ist auch möglich, das Gelenk 14 durch einen Materialbereich zu bilden, der elastisch oder plastisch verformbarer ist als die Verformbarkeit des oberen Randbereichs 6d und des übrigen Randbereichs 6e. In diesem Falle könnte z.B. die Seitenwand 6 auch im Bereich des Gelenks 14 die gleiche Dicke aufweisen, wobei die Reflektionsfläche 6a bezüglich ihrer Krümmung im wesentlichen kontinuierlich verlaufen kann und Rück- oder Vorsprünge vermieden werden können. Es gibt Kunststoffe, die es erlauben, die Seitenwand 6 im erfindungsgemäßen Sinne einmal oder mehrmal nach innen oder nach außen zu biegen, ohne dass ein Bruch entsteht. Ein solcher Kunststoff ist z.B. Polypropylen (PP).There are several possibilities for configuring the side wall 6 such that its upper edge region 6d is elastically or plastically adjustable inwards and / or outwards and in each case back again, e.g. deformable or bendable. In the present embodiments, the ductility is limited to a small upright portion of the side wall 6a, which portion forms the hinge 14. In this case, this area has the weakening of material forming the joint 14, which is e.g. by the material rejuvenation already described, e.g. in the form of a film hinge, or may be formed by a perforation extending in the circumferential direction of the reflector 1 or the lamp or in the longitudinal direction of the side wall 6. It is also possible to form the joint 14 through a material region which is elastically or plastically deformable than the deformability of the upper edge region 6d and of the remaining edge region 6e. In this case, e.g. the side wall 6 also in the region of the joint 14 have the same thickness, wherein the reflection surface 6a may be substantially continuous with respect to their curvature and rear or projections can be avoided. There are plastics which allow the side wall 6 to be bent once or more inwards or outwards in the sense according to the invention without a break occurring. Such a plastic is e.g. Polypropylene (PP).

Die Verstellbarkeit der wenigstens einen Seitenwand 6 ist hinsichtlich mehrerer Aspekte von Vorteil.The adjustability of the at least one side wall 6 is advantageous with regard to several aspects.

Ein Aspekt besteht darin, den Reflektor 1 in ein in Fig. 1 andeutungsweise und in Fig. 3 links beispielhaft dargestelltes kastenförmiges Gehäuse 15 einer in ihrer Gesamtheit mit 16 bezeichneten Leuchte montieren zu können. Hierbei ist es wünschenswert, den Reflektor 1 durch eine Montageöffnung 17 des kastenförmigen Gehäuses 15 hindurch, z.B. von unten, in das Gehäuse 15 einzuschieben und durch eine Verbindungsvorrichtung 17 gegen ein ungewolltes Rückschieben zu sichern. Es können z.B. auf beiden Seiten des Gehäuses 15 jeweils eine oder mehrere Verbindungsvorrichtungen 17 in der Umfangsrichtung hintereinanderliegend angeordnet sein. Bei einer solchen Leuchte 16 ist es wünschenswert, zum einen Reflektorseitenwände 6 zu haben, die sich bis in den Firstbereich des Reflektors 1 erstrecken, um auch dort das Licht reflektieren zu können.One aspect is to place the reflector 1 in an in Fig. 1 suggestively and in Fig. 3 left exemplified box-shaped housing 15 to be able to mount in its entirety 16 designated light. In this case, it is desirable to insert the reflector 1 through a mounting opening 17 of the box-shaped housing 15, for example from below, into the housing 15 and to secure it against accidental retraction by a connecting device 17. For example, one or more connecting devices 17 may each be arranged one behind the other in the circumferential direction on both sides of the housing 15. In such a lamp 16, it is desirable to have a reflector side walls 6, which extend into the ridge region of the reflector 1 in order to reflect the light there as well.

Ein anderer Wunsch bzw. eine andere Anforderung besteht darin, den Reflektor 1 auch bei wenigstens einer montierten Lampe 2 montieren bzw. demontieren zu können. Diesbezüglich ermöglicht es die Erfindung, den Reflektor 1 in einer Stellung seiner oberen Randbereiche 6d zu montieren, in der die oberen Ränder 6c einen Abstand a voneinander aufweisen, der größer ist als die Querschnittsgröße der Lampe 2 bzw. der Anschlussmittel 10 (Fig. 3). Hierdurch ist es möglich, den Reflektor 1 mit den oberen Randbereichen 6d bei montierter Lampe 2 bzw. montiertem Anschlussmittel 10 in das Gehäuse 15 einzuschieben und während oder nach dem Einschieben nach innen in eine Position zu verstellen, in der sie das wenigstens eine Anschlussmittel 10 bzw. die wenigstens eine Lampe 2 hintergreifen. Dabei können die Seitenwände 6 bzw. ihre oberen Randbereiche 6d solang ausgebildet sein, dass ihre freien Ränder 6c in ihrem nach innen verstellten Stellungen aneinanderliegen (Fig. 3) oder einen Abstand a voneinander aufweisen (Fig. 1). Hierdurch wird nicht nur eine maximal-große Reflektionsfläche 6a erreicht, sondern es bedarf auch keines besonderen Kopfreflektors im Firstbereich, wie es bei bekannten Ausgestaltungen üblich ist.Another desire or another requirement is to be able to assemble or disassemble the reflector 1 even if at least one mounted lamp 2. In this regard, the invention makes it possible to mount the reflector 1 in a position of its upper edge regions 6d, in which the upper edges 6c have a distance a from one another which is greater than the cross-sectional size of the lamp 2 or the connection means 10 (FIG. Fig. 3 ). This makes it possible to insert the reflector 1 with the upper edge regions 6d with mounted lamp 2 or mounted connection means 10 into the housing 15 and during or after the insertion inward to a position in which they at least one connection means 10 and which engage behind at least one lamp 2. In this case, the side walls 6 or their upper edge regions 6d may be formed so long that their free edges 6c abut one another in their inwardly displaced positions ( Fig. 3 ) or a distance a from each other ( Fig. 1 ). As a result, not only a maximum-large reflection surface 6a is achieved, but it also requires no special head reflector in the ridge region, as is customary in known embodiments.

Ein anderer Aspekt bezüglich der Bedeutung der Verstellbarkeit wenigstens eines oberen Randbereichs 6d ist folgender. Bei Leuchten mit indirekten Beleuchtung des Raumes ist es üblich, einen Teil des von der wenigstens einen Lampe 2 abgestrahlten Lichts durch wenigstens einen lichtdurchlässigen Bereich zur Rückseite der Leuchte bzw. zur Decke hin abzustrahlen. Die Lichtmenge für die indirekte Beleuchtung ist dabei von der Größe des Lichtdurchlasses zur Rückseite hin abhängig, wobei der Durchlass durch eine größere Öffnung oder eine Mehrzahl kleinerer Öffnungen im oberen Bereich der wenigstens einen Seitenwand 6 und des Gehäuses 15 gebildet sein kann. Bezüglich dieses Aspektes ermöglicht es die erfindungsgemäße Ausgestaltung, den Anteil des Lichtes für die indirekte Beleuchtung wahlweise durch eine Verstellung und Einstellung wenigstens eines Endbereichs 6d in eine bestimmte Stellung zu bestimmen.Another aspect concerning the significance of the adjustability of at least one upper edge region 6d is as follows. In the case of luminaires with indirect illumination of the room, it is customary to radiate a part of the light emitted by the at least one lamp 2 through at least one light-transmitting area towards the back of the luminaire or towards the ceiling. The amount of light for the indirect illumination is dependent on the size of the light passage to the rear side, wherein the passage may be formed by a larger opening or a plurality of smaller openings in the upper region of the at least one side wall 6 and the housing 15. With regard to this aspect, it enables the embodiment according to the invention, Optionally determine the proportion of light for indirect illumination by adjusting and adjusting at least one end portion 6d to a particular position.

Ein weiterer Aspekt bezüglich der Bedeutung der Verstellbarkeit der oberen Randbereiche 6d ist folgender. Ein vorbeschriebener Zellenraster besteht vorzugsweise aus Kunststoff, wobei es sich um ein einteiliges Spritzteil handelt. Die Spritztechnik erlaubt es nicht, dass die oberen Randbereiche 6d nach innen gerichtet sind. Bei dem bekannten Zellenraster gemäß DE 101 51 958 A1 sind die Randbereiche nach außen gerichtet. Möglich wäre es auch, die Randbereiche nach oben zu richten, so dass das Spritzgießteil aus der Form heraus gezogen werden kann.Another aspect concerning the importance of the adjustability of the upper edge regions 6d is as follows. A prescribed cell grid is preferably made of plastic, which is a one-piece molded part. The spray technique does not allow the upper edge portions 6d to be directed inward. In the known cell grid according to DE 101 51 958 A1 the edge areas are directed outwards. It would also be possible to direct the edge areas upwards, so that the injection-molded part can be pulled out of the mold.

Bei einem bekannten Zellenraster bzw. einer ihn aufweisenden Leuchte, ist es deshalb erforderlich, einen Kopfreflektor vorzusehen, um das Licht aus dem Firstbereich zur Durchstrahlöffnung 3 hin zu reflektieren.In a known cell grid or a luminaire having it, it is therefore necessary to provide a head reflector to reflect the light from the ridge region to the transmission opening 3 out.

Dagegen ermöglicht es die erfindungsgemäße Ausgestaltung, den Reflektor 1 in einer Form zu spritzen, in der die oberen Randbereiche 6d sich nach oben bis nach außen erstrecken, und in der er problemlos entformt werden kann. Bei der Montage werden dann die oberen Randbereiche 6d vorzugsweise aus ihrer nach oben gerichteten Position nach innen in eine Reflektionsstellung verstellt oder geschwenkt, in der sie obere Reflektionsbereiche des Reflektors 1 bilden und dabei sich bis zum First erstrecken und mit ihren Rändern 6c aneinanderliegen können oder den Abstand a voneinander aufweisen können.In contrast, the embodiment according to the invention makes it possible to inject the reflector 1 in a form in which the upper edge regions 6d extend upwards to the outside, and in which they can be removed from the mold without difficulty. During assembly, the upper edge regions 6d are then preferably moved or pivoted inwards from their upwardly directed position into a reflection position, in which they form upper reflection regions of the reflector 1 and extend as far as the ridge and can abut one another with their edges 6c or Distance a from each other may have.

Zum Fixieren des wenigstens einen oberen Randbereichs 6d in der verstellten Position ist vorzugsweise eine Fixiervorrichtung 18 vorgesehen, die z.B. durch eine Verrastungsvorrichtung gebildet sein kann und mit einer Verrastungsnase 18a, die zwischen einer Verrastungsstellung und einer Freigabestellung beweglich, insbesondere biegbar, ist, z.B. den stirnseitigen Rand oder den freien Rand 6e des oberen Randbereichs 6d hintergreift.For fixing the at least one upper edge portion 6d in the displaced position, a fixing device 18 is preferably provided, e.g. may be formed by a latching device and with a latching lug 18a which is movable, in particular bendable, between a latching position and a release position, e.g. engages behind the front edge or the free edge 6e of the upper edge portion 6d.

Beim Ausführungsbeispiel nach Fig. 4, bei dem die Fixiervorrichtung 18 den oberen Randbereich 6d in seiner nach außen verstellten Position fixiert, ist die Verrastungsnase 18a an einem Steg 19 nach oben gerichtet angeformt, der vom übrigen Randbereich 6e nach außen absteht und mit diesem einteilig verbunden sein kann, z.B. einstückig mit der Seitenwand 6 spritzgegossen sein kann. Dabei kann der Steg 19 jeweils nur in den Endbereichen des Randbereichs 6e angeordnet sein oder sich über die gesamte Länge des Randbereichs 6e erstrecken.According to the embodiment Fig. 4 , in which the fixing device 18 fixes the upper edge region 6d in its outwardly adjusted position, the Verrastungsnase 18a is formed on a web 19 directed upwards, which protrudes from the remaining edge portion 6e to the outside and can be integrally connected thereto, for example in one piece the side wall 6 can be injection-molded. It can the Web 19 may be arranged only in the end regions of the edge region 6e or extend over the entire length of the edge region 6e.

Beim Ausführungsbeispiel nach Fig. 5 ist für jeden oberen Randbereich 6d wenigstens eine Fixiervorrichtung 18 in der nach innen gerichteten Verstellendstellung angeordnet, z.B. an einem von der zugehörigen Stirnwand 7 bzw. von deren Flansch 11 hochstehenden Steg 21, von dem die zugehörige Verrastungsnase 18a ebenfalls nach oben ragt und den freien Rand 6c oder den stirnseitigen Rand (nicht dargestellt) des oberen Randbereichs 6d hintergreift und zur Lösung der Verbindung ausbiegbar ist.According to the embodiment Fig. 5 For each upper edge region 6d, at least one fixing device 18 is arranged in the inwardly directed adjustment end position, eg on a web 21 upstanding from the associated end wall 7 or from its flange 11, from which the associated latching nose 18a also projects upwards and the free edge 6c or the front edge (not shown) of the upper edge portion 6d engages behind and can be bent to solve the connection.

Beide Stege 19, 21 können auch einen Anschlag 22 zur Begrenzung der Ausschwenkbewegung bzw. Einschwenkbewegung bilden, der beim Ausführungsbeispiel nach Fig. 4 durch die Oberseite des Stegs 19 und beim Ausführungsbeispiel nach Fig. 5 durch einen oberen Rand des Stegs 21 gebildet sein kann.Both webs 19, 21 may also form a stop 22 for limiting the swiveling out or pivoting movement, according to the embodiment Fig. 4 through the top of the web 19 and in the embodiment according to Fig. 5 may be formed by an upper edge of the web 21.

Diese Ausgestaltung eignet sich z.B. für eine indirekte Beleuchtung. In diesem Feld ist das Gehäuse 16 im Bereich der Umfangswand 15a bzw. Längsseitenwand 15c und/oder Deckenwand 15b wenigstens teilweise lichtdurchlässig.This embodiment is suitable e.g. for indirect lighting. In this field, the housing 16 in the region of the peripheral wall 15a or longitudinal side wall 15c and / or ceiling wall 15b is at least partially translucent.

Im Rahmen der Erfindung ist es auch möglich, jeweils im Verstellbereich des zugehörigen oberen Randbereichs 6d weitere Verrastungsvorrichtungen in wahlweisen Zwischenstellungen vorzusehen, was nicht dargestellt ist.Within the scope of the invention, it is also possible to provide further latching devices in optional intermediate positions in each case in the adjustment range of the associated upper edge region 6d, which is not shown.

Die Filmscharnier-Gelenke 14 gemäß den Fig. 1 bis 3 und 5 einerseits und der Fig. 4 andererseits sind unterschiedlich ausgestaltet. Im ersteren Fall befindet sich der Film bzw. das Band zwischen der inneren unteren Randkante des oberen Randbereichs 6d und der oberen äußeren Randkante des übrigen Randbereichs 6e. Hierdurch ist der obere Randbereich 6d bezüglich dem übrigen Randbereich 6e nach außen versetzt, siehe insbesondere Fig. 2. Dabei kann der Film bezüglich seiner aufwärts gerichteten Breite im Sinne einer Schnur oder eines Bandes schmal ausgebildet sein.The film hinge joints 14 according to the Fig. 1 to 3 and 5 on the one hand and the Fig. 4 on the other hand are designed differently. In the former case, the film or the band is located between the inner lower peripheral edge of the upper edge region 6d and the upper outer peripheral edge of the remaining edge region 6e. As a result, the upper edge region 6d is offset outwardly with respect to the remaining edge region 6e, see in particular Fig. 2 , In this case, the film may be narrow in terms of its upward width in the sense of a string or a band.

Beim Ausführungsbeispiel nach Fig. 4 ist der Film durch einen sich aufwärts erstreckenden dünnen Streifen gebildet, dessen Breite b z.B. gleich oder größer sein kann als die Dicke d des Randbereichs 6d und der sich von der unteren inneren Randkante des oberen Randbereichs 6d und der oberen inneren Randkante des übrigen Randbereichs 6e erstreckt. Bei dieser Ausgestaltung sind die Randbereiche 6d, 6e nicht quer zueinander versetzt, so dass in der Position des oberen Randbereichs 6d, in der er sich in der nach oben gerichteten Aufwärtserstreckung des übrigen Randbereichs 6e fortsetzt, eine nicht quer versetzte kontinuierlich durchgehende Reflektionsfläche 6a gebildet ist.According to the embodiment Fig. 4 For example, the film is formed by an upwardly extending thin strip whose width b may be equal to or greater than the thickness d of the edge portion 6d and which extends from the lower inner peripheral edge of the upper edge portion 6d and the upper inner peripheral edge of the remaining edge portion 6e , In this embodiment, the edge regions 6d, 6e are not transversely offset from each other, so that in the position of the upper edge region 6d, in which it continues in the upward upward extension of the remaining edge region 6e, a non-transverse offset continuously continuous reflection surface 6a is formed.

Gemäß Fig. 3 ist der Reflektor 1 in der in ihrer Gesamtheit mit 16 bezeichneten Leuchte in deren Gehäuse 15 montiert dargestellt. Die horizontale Querschnittsform des Gehäuses 15 kann z.B. rund oder viereckig sein, wobei das Gehäuse 15 eine entsprechend geformte Umfangswand 15a aufweist, die sich von einer Deckenwand 15b erstreckt.According to Fig. 3 the reflector 1 is shown mounted in the housing 15 in the lamp designated in its entirety by 16. The horizontal cross-sectional shape of the housing 15 may be, for example, round or square, wherein the housing 15 has a correspondingly shaped peripheral wall 15a extending from a ceiling wall 15b.

Insbesondere bei einer langgestreckten Leuchte 16 können einander gegenüberliegende Längsseitenwände 15c und diese miteinander verbindende Stirnwände 15d oder nur die Längsseitenwände 15c vorgesehen sein.In particular, in the case of an elongate luminaire 16, longitudinal side walls 15c opposite to one another and end walls 15d connecting them to one another or only the longitudinal side walls 15c may be provided.

Es ist zur Vereinfachung der Montage vorteilhaft, die Seitenwände 6 in einer Ausgangsform herzustellen, in der die oberen Randbereiche 6d nach oben ragen, wie es Fig. 1 mit strichpunktierten Linien und Fig. 4 mit durchgezogenen Linien zeigt. Dabei ist es im weiteren vorteilhaft, am Gehäuse 15 in Fig. 3 beispielhaft gezeigte Leitelemente 23 anzuordnen, die beim Einschieben des Reflektors 1 in das Gehäuse 15 den wenigstens einen oberen Randbereich 16d nach innen leiten bzw. schwenken, vorzugsweise bis in seine innere Schwenkendstellung, bei der zwischen den oberen Rändern 6c der Abstand a vorhanden sein kann oder diese Ränder 6c aneinanderliegen. Dabei werden durch die Leitvorrichtung 23 der oder die oberen Randbereiche 6d selbsttätig in ihre Schwenkendstellung verstellt.It is to simplify the assembly advantageous to produce the side walls 6 in an initial form in which the upper edge portions 6 d project upwardly, as it Fig. 1 with dash-dotted lines and Fig. 4 shows with solid lines. It is further advantageous in the case 15 in Fig. 3 To arrange guide elements 23 shown by way of example, which guide the at least one upper edge region 16d inwardly upon insertion of the reflector 1, preferably into its inner pivot end position, in which between the upper edges 6c of the distance a may be present or these edges 6c abut each other. In this case, the guide device 23 automatically adjusts the or the upper edge regions 6d into their pivoting end position.

Wenn sich zwischen den oberen Randbereichen 6d der Abstand a befindet, ist es vorteilhaft, dem oder den oberen Randbereichen 6d einen Anschlag 22 zuzuordnen, der ihn gegen ein weiteres Verstellen nach innen begrenzt. Ein solcher Anschlag 22 kann durch den oberen Rand eines zugehörigen Stegs 21 gebildet sein, wie es Fig. 3 zeigt. Dabei ist in die Ausschwenkrichtung nach oben der obere Randbereich 6d durch die Leitvorrichtung 23 begrenzt und somit zwischen letzterer und dem Anschlag 22 arretiert.If there is a distance a between the upper edge regions 6d, it is advantageous to assign a stop 22 to the upper edge region or regions 6d, which limits it inwardly against further adjustment. Such a stop 22 may be formed by the upper edge of an associated web 21, as it Fig. 3 shows. In this case, the upper edge region 6d is limited by the guide device 23 and thus locked between the latter and the stop 22 in the Ausschwenkrichtung upwards.

Wenn zwischen den oberen Rändern 6c kein Abstand a vorhanden ist, kann ein innerer Anschlag 22 entfallen, weil das Aneinanderliegen der oberen Ränder 6c einen solchen Anschlag 22 bildet.If there is no distance a between the upper edges 6c, an inner stop 22 can be omitted, because the abutment of the upper edges 6c forms such a stop 22.

Beim Ausführungsbeispiel nach Fig. 3 ist die Leitvorrichtung 23 durch einen sich im Bereich der linken Gehäusehälfte bzw. Gehäuseecke nach innen aufwärts konvergent, z.B. schräg, erstreckenden Steg 23a gebildet, der an der Umfangswand 15a bzw. Längsseitenwand 15c und/oder Deckwand 15b befestigt sein kann. Es ist auch möglich, die Leitvorrichtung 23 oder den Steg 23a an der zugehörigen Gehäuse-Stirnwand 15d zu befestigen.According to the embodiment Fig. 3 the guide device 23 is formed by an upwardly convergent in the region of the left half of the housing or housing corner, for example obliquely, extending web 23a, which may be attached to the peripheral wall 15a or longitudinal side wall 15c and / or top wall 15b. It is also possible to fasten the guiding device 23 or the web 23a to the associated housing end wall 15d.

Der Steg 23a befindet sich in einer solchen Position, dass beim Einschieben des Reflektors 1 von unten der freie Rand 6c des oberen Randbereichs 6d gegen die konvergente Innenseite des Stegs 23a stößt und beim weiteren Einschieben nach innen in die in Fig. 3 dargestellte Endstellung verstellt bzw. geschwenkt wird. Dabei kann sich die Deckwand 15b im Firstbereich als weiterer horizontaler Leitsteg 23b betätigen, der eine Weiterleitung im Einschwenkendbereich durchführt oder in Kombination mit dem Aneinanderliegen der freien Ränder 6c eine Fixiervorrichtung 18 bildet.The web 23a is in such a position that upon insertion of the reflector 1 from below, the free edge 6c of the upper edge portion 6d abuts against the convergent inside of the web 23a and upon further insertion inward in the in Fig. 3 illustrated end position is adjusted or pivoted. In this case, the top wall 15b in the ridge region can actuate as a further horizontal guide web 23b, which performs a forwarding in Einschwenkendbereich or forms a fixing device 18 in combination with the juxtaposition of the free edges 6c.

Der sekantiale Berührungspunkt 23c zwischen dem Leitsteg 23a und dem oberen Randbereich 6d befindet sich vorzugsweise in einem bezüglich dem Gelenk 14 zum freien Rand 6c hin versetzten Abstand c. Hierdurch ist auch im Schwenkendbereich die alleinige Leitwirkung des Leitstegs 23a gewährleistet, wobei der sich vom Berührungspunkt 23c nach oben erstreckende Abschnitt des oberen Randbereichs 6d aufgrund seiner Eigensteifigkeit seine Form und Position beibehält.The secantial contact point 23c between the guide web 23a and the upper edge region 6d is preferably located in a distance c offset relative to the joint 14 towards the free edge 6c. As a result, the sole guiding action of the guide web 23a is guaranteed even in the swivel end region, wherein the section of the upper edge region 6d extending upwards from the contact point 23c retains its shape and position due to its inherent rigidity.

Die Verbindungsvorrichtung 17 kann durch eine Verrastungsvorrichtung gebildet sein, die es gestattet, den Reflektor 1 beim Einschieben in das Gehäuse 15 in seiner Einschubendstellung zu Verrasten und durch eine handhabungsfreundlich aufzubringende erhöhte Rückzugkraft wieder zu lösen, wobei die Verrastungsvorrichtung selbsttätig löst. Eine solche Verrastungsvorrichtung ist in Fig. 3 links vereinfacht dargestellt und rechts vorzugsweise gleich und spiegelbildlich angeordnet und ausgebildet (nur teilweise dargestellt). Bei einem langgestreckten Reflektor 1 bzw. einer langgestreckten Leuchte 16 können mehrere Verbindungsvorrichtungen 17 bzw. Verrastungsvorrichtungen 25 auf jeder Seite einander gegenüberliegend angeordnet sein, z.B. in den Endbereichen.The connecting device 17 may be formed by a latching device, which allows the reflector 1 when inserted into the housing 15 in its Einschubendstellung to lock and solve by a handling friendly applied increased retraction force again, the latching device automatically triggers. Such a latching device is in Fig. 3 shown simplified on the left and preferably right and arranged the same and mirror image and formed (only partially shown). In the case of an elongate reflector 1 or an elongated luminaire 16, a plurality of connecting devices 17 or latching devices 25 can be arranged on each side opposite one another, for example in the end regions.

Die Verrastungsvorrichtung weist jeweils eine Rastnase 25b auf, die an einem seitlich elastisch ausbiegbaren Federschenkel 25a ausgebildet oder angeordnet ist, und in der Verrastungsstellung einen Rastvorsprung hintergreift und in eine Rastausnehmung 25c einfedert. Um zunächst ein selbsttätiges Ausfedern der Rastnase 25b beim Einschieben des Reflektors 1 zu erreichen, weist die Rastnase 25b eine der Rastfläche 25e gegenüberliegend angeordnete gerundete oder schräge Einführungsfläche 25d auf, die beim Einschieben ein selbsttätiges Ausbiegen des Federschenkels 25a bewirkt. Entsprechend schräg oder gerundet ist auch die Rastfläche 25e der Rastnase 25b so ausgebildet, dass durch eine manuelle, die Gewichtskraft des Reflektors 1 wesentlich übersteigende Zugkraft der Reflektor 1 aus seiner Verrastung lösbar ist, wobei die Federschenkel 25a selbsttätig ausgebogen werden und die Rastnasen 25b den Reflektor 1 freigeben und danach wieder in ihre Verrastungsbereitschaftsstellung zurückfedern.The latching device in each case has a latching nose 25b, which is formed or arranged on a laterally elastically deflectable spring leg 25a, and engages behind a latching projection in the latching position and springs into a latching recess 25c. To first achieve an automatic rebound of the locking lug 25b when inserting the reflector 1, the locking lug 25b one of Catching surface 25e opposite arranged rounded or inclined insertion surface 25d, which causes an automatic bending out of the spring leg 25a during insertion. According obliquely or rounded and the locking surface 25e of the locking lug 25b is formed so that by a manual, the weight of the reflector 1 substantially exceeding tensile force of the reflector 1 is released from its latching, the spring legs 25a are bent automatically and the locking lugs 25b the reflector Release 1 and then spring back to their latch ready position.

Beim Ausführungsbeispiel sind die Federschenkel 25a an ihren unteren oder oberen Enden mittelbar oder unmittelbar an der Innenseite des unteren Bereichs der Umfangswand 15a bzw. Längsseitenwände 15c befestigt, wobei die Federschenkel 25a sich mit ihren freien Enden nach oben oder unten erstrecken. Die Rastausnehmung 25c ist durch einen Nocken 25f gebildet, dessen obere Seite die Ausnehmung unterseitig begrenzt und vorzugsweise eine schräge Ausführungsfläche bilden kann, und dessen untere Seite eine entgegengesetzt schräge Einführungsfläche bilden kann. Der Nocken kann zweiteilig oder vorzugsweise einteilig an die Seitenwand 6 außen angeformt sein.In the embodiment, the spring legs 25a are attached at their lower or upper ends indirectly or directly to the inside of the lower portion of the peripheral wall 15a and longitudinal side walls 15c, wherein the spring legs 25a extend with their free ends up or down. The latching recess 25c is formed by a cam 25f, the upper side of which limits the recess on the underside and can preferably form an inclined execution surface, and whose lower side can form an oppositely inclined insertion surface. The cam may be formed in two parts or preferably in one piece on the side wall 6 outside.

Beim Ausführungsbeispiel nach Fig. 6, bei dem gleiche oder vergleichbare Teile mit gleichen Bezugszeichen versehen sind, und bei dem der Reflektor 1 ebenfalls durch einen Zellenraster gebildet ist, sind die einander spiegelbildlich gegenüberliegenden übrigen Randbereiche 6e wenigstens im Bereich von Längsabschnitten von einander gegenüberliegenden Seitenbereichen 26a einer z.B. gerundeten Rinne 26 und von Seitenbereichen 27a von sich von der Rinne 26 nach unten erstreckenden hülsenförmigen Zellen 27 gebildet, deren Umfangswände die Rinne 26 durchsetzen. Dabei können die unteren Ränder der hülsenförmigen Zellen 27 eine untere Basisplatte 28 durchsetzen. Die oberen Randbereiche 6d der Rinne 26 sind bezüglich unteren bzw. übrigen Randbereichen 6e der Rinne 26 im vorbeschriebenen Sinne verstellbar bzw. schwenkbar.According to the embodiment Fig. 6 , in which the same or comparable parts are provided with the same reference numerals, and in which the reflector 1 is also formed by a cell grid, the mirror image opposite other edge regions 6e at least in the region of longitudinal sections of opposite side regions 26a of a rounded channel 26 and formed by side portions 27a of downwardly extending from the channel 26 sleeve-shaped cells 27 whose peripheral walls pass through the channel 26. The lower edges of the sleeve-shaped cells 27 can pass through a lower base plate 28. The upper edge regions 6d of the channel 26 are adjustable or pivotable with respect to the lower or remaining edge regions 6e of the channel 26 in the above-described sense.

Bei dieser Ausgestaltung weist der vorzugsweise einteilig aus Kunststoff hergestellte, insbesondere ebenfalls durch Spritzgießen geformte Reflektor 1 zwei übereinander angeordnete Lichtdurchtrittsöffnungen 3a, 3b am oberen und unteren Rand der Zellen 27 auf.In this embodiment, the reflector 1, which is preferably produced in one piece from plastic and is also shaped in particular by injection molding, has two light passage openings 3a, 3b arranged one above the other at the upper and lower edge of the cells 27.

Die Verstellbarkeit des oberen Randbereichs 6d lässt sich auch dadurch erreichen, dass der obere Randbereich 6d oder übrige Bereich 6e der Reflektorwand 6 oder ein Zwischenbereich dazwischen (nicht dargestellt) aus einem plastisch oder elastisch verformbaren bzw. biegsamen Kunststoff hergestellt oder spritzgegossen wird, z.B. im Zwei- oder Drei-Komponenten-Spritzverfahren.The adjustability of the upper edge region 6d can also be achieved by virtue of the fact that the upper edge region 6d or the remaining region 6e of the reflector wall 6 or an intermediate region between them (not illustrated) consists of a plastic or elastic material deformable or flexible plastic is produced or injection-molded, for example in two- or three-component injection molding.

Claims (19)

  1. Reflector (1) for a luminaire having at least one lamp (2), with connection means (10) for at least one lamp (2) and at least two reflector walls (6) which below bound at least a part of a light through opening (3) and which are connected with one another by raster elements (8), wherein at least one of the reflector walls (6) has at least one upper edge region (6d) which is adjustable with respect to the rest of the reflector wall (6e)
    characterised in that,
    the reflector (6) is produced in one piece of plastic.
  2. Luminaire having a housing in which there are arranged connection means (10) for at least one lamp (2) and a reflector (1) in accordance with claim 1.
  3. Reflector according to claim 1 or luminaire according to claim 2,
    characterised in that,
    a joint (14) is provided between the upper edge region (6d) and the rest of the reflector wall (6e).
  4. Reflector or luminaire in accordance with any preceding claim, wherein the upper edge (6c) of the upper edge region (6d) bounds a through opening (a) for at least one lamp (2) of the luminaire,
    characterised in that,
    the upper edge region (6d) is adjustable between a first position allowing the passage of the lamp (2) and a second position engaging over the lamp.
  5. Reflector or luminaire in accordance with any preceding claim,
    characterised in that,
    the two reflector walls (6) are arranged opposite one another, preferably mirror symmetrically with respect to a vertical middle plane (E).
  6. Reflector or luminaire in accordance with any
    preceding claim,
    characterised in that,
    the at least one reflector wall (6) extends straight, transversely of the middle axis (13) of the through opening (3).
  7. Reflector according to claim 5 or 6,
    characterised in that,
    in their second position adjusted towards one another the upper edges (6c) of the upper edge regions (6d) bear on one another or have a spacing (a) from each other which preferably is symmetrical with regards to the middle plane (E).
  8. Reflector or luminaire according to any of preceding claims 3 to 7,
    characterised in that,
    the joint (14) has a joint axis (14a) extending in the circumferential direction or in the longitudinal direction of the reflector or the luminaire.
  9. Reflector or luminaire according to any of preceding claims 3 to 8,
    characterised in that,
    the joint (14) is formed by a material weakening of the side wall (6).
  10. Reflector or luminaire according to any of preceding claims 3 to 9,
    characterised in that,
    the joint (14) or the material weakening is formed by a material tapering.
  11. Reflector or luminaire according to any of preceding claims 3 to 10,
    characterised in that,
    the joint (14) is formed by a film hinge.
  12. Reflector or luminaire in accordance with any
    preceding claim,
    characterised in that,
    the at least one reflector wall (6) is elastically or plastically deformable, in particular is bendable.
  13. Reflector or luminaire in accordance with any
    preceding claim,
    characterised in that,
    at least one fixing device (18) is provided for fixing the upper edge region (6d) in a determined position.
  14. Reflector or luminaire according to claim 13,
    characterised in that,
    the fixing device (18) is formed by a latching device which preferably acts in cooperation with the free edge (6c) of the upper edge region (6d).
  15. Reflector or luminaire according to claim 13 or 14,
    characterised in that,
    fixing or latching elements are arranged on the rest of the reflector wall (6e) and/or on an end wall (7).
  16. Reflector or luminaire in accordance with any
    preceding claim,
    characterised in that,
    the reflector (6) is releasably fastenable in a housing (16) by means of at least one connection device (17), in particular at least one latching device.
  17. Luminaire in accordance with any preceding claim,
    characterised in that,
    guide elements (23a) are provide for adjustment, in particular swivelling, of the at least one upper edge region (6d) into its desired position, which elements are preferably provided on a housing (16).
  18. Reflector or luminaire in accordance with any
    preceding claim,
    characterised in that,
    the reflector (1) is an injection moulded part.
  19. Reflector according to claim 18,
    characterised in that,
    it is of polypropylene (PP).
EP05006170A 2004-04-08 2005-03-21 Reflector for a lamp with an adjustable reflector body and a lamp with such reflector Not-in-force EP1584864B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004017545 2004-04-08
DE102004017545.4A DE102004017545B4 (en) 2004-04-08 2004-04-08 Reflector for a luminaire, with an adjustable reflector wall and luminaire with such a reflector

Publications (3)

Publication Number Publication Date
EP1584864A2 EP1584864A2 (en) 2005-10-12
EP1584864A3 EP1584864A3 (en) 2005-12-14
EP1584864B1 true EP1584864B1 (en) 2008-07-23

Family

ID=34895542

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05006170A Not-in-force EP1584864B1 (en) 2004-04-08 2005-03-21 Reflector for a lamp with an adjustable reflector body and a lamp with such reflector

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EP (1) EP1584864B1 (en)
AT (1) ATE402374T1 (en)
DE (2) DE102004017545B4 (en)

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Publication number Priority date Publication date Assignee Title
DE102006018255A1 (en) * 2006-04-18 2007-10-25 Zumtobel Lighting Gmbh Light e.g. interior light, has light guiding chambers provided on sides of centrically carrier hollow section, and cover-sided light distribution airfoils swivelably and/or detachably supported at carrier hollow section
DE502007004014D1 (en) * 2006-04-18 2010-07-15 Zumtobel Lighting Gmbh LIGHT, IN PARTICULAR FLOOR LAMP, WITH A FIRST AND A SECOND LIGHT RADIATION AREA
EP1847766A1 (en) * 2006-04-18 2007-10-24 Hartmut S. Engel Indoor lighting device
DE102008003215A1 (en) 2007-01-09 2008-07-17 Reinhard Nickel Lighting body for producing parallel light has holder for rod-shaped light and long curved reflector with adjusting plates inclined to the carrier sheet
DE102007017079B4 (en) * 2007-04-10 2009-05-20 Hella Kgaa Hueck & Co. Reflector for motor vehicle lights and manufacturing method
DE102009028149B4 (en) * 2009-07-31 2011-12-08 Leica Instruments (Singapore) Pte. Ltd. Illumination device for a microscope
DE102010001363A1 (en) * 2010-01-29 2011-08-04 Zumtobel Lighting Gmbh reflector assembly
CN102401322B (en) * 2011-12-05 2014-04-09 江西合晶科技有限公司 Light emitting diode (LED) lamp device with flat light and condensation structure
DE202022106491U1 (en) 2022-11-21 2024-02-28 BÄRO GmbH & Co. KG Luminaire with variable beam characteristics, lighting system and use

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Publication number Priority date Publication date Assignee Title
DE2417605C3 (en) * 1974-04-10 1980-10-16 Siemens Ag, 1000 Berlin Und 8000 Muenchen Broad beam street light
DE2635431A1 (en) * 1976-08-06 1978-02-09 Zeiss Ikon Ag Light fitting providing direct and indirect lighting - is fitted witb reflectors having light outlet openings equipped with adjustable shutters
US4794504A (en) * 1986-07-16 1988-12-27 Neiman Reflector for automobile headlight with improved full beam
AT392527B (en) * 1988-02-23 1991-04-25 Zumtobel Ag Luminaire with an elongated tube-like fluorescent lamp
US4872098A (en) * 1989-03-20 1989-10-03 Lpi Limited Partnership Variable beam floodlight
US5539622A (en) * 1992-03-12 1996-07-23 Asahi Kogaku Kogyo Kabushiki Kaisha Strobe device
DE10151958A1 (en) 2001-10-22 2003-04-30 Zumtobel Staff Gmbh Luminaire with several pot reflectors
DE10161468B4 (en) * 2001-12-13 2004-02-05 Klaus-Peter Scherer Luminaire with several reflectors

Also Published As

Publication number Publication date
DE502005004770D1 (en) 2008-09-04
DE102004017545B4 (en) 2014-11-20
ATE402374T1 (en) 2008-08-15
EP1584864A3 (en) 2005-12-14
EP1584864A2 (en) 2005-10-12
DE102004017545A1 (en) 2005-10-27

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