EP0485811A2 - Light fixture - Google Patents
Light fixture Download PDFInfo
- Publication number
- EP0485811A2 EP0485811A2 EP91118584A EP91118584A EP0485811A2 EP 0485811 A2 EP0485811 A2 EP 0485811A2 EP 91118584 A EP91118584 A EP 91118584A EP 91118584 A EP91118584 A EP 91118584A EP 0485811 A2 EP0485811 A2 EP 0485811A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- lamp housing
- housing
- lamp
- outer housing
- handlebar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
- F21V21/04—Recessed bases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
- F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
- F21S8/028—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters being retractable, i.e. having two fixed positions, one recessed, e.g. in a wall, floor or ceiling, and one extended when in use
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/14—Adjustable mountings
- F21V21/30—Pivoted housings or frames
Definitions
- the invention relates generically to a lamp, in particular a built-in lamp, with a stationary outer housing, pivotably arranged lamp housing and lamp holder, the lamp housing carrying the lamp holder being connected to the outer housing by a link arrangement.
- the outer housing of the recessed luminaire can be used in a recess on a ceiling or wall surface.
- a recessed luminaire with the features described in the introduction is known from US Pat. No. 3,974,371.
- the handlebar arrangement allows the lamp housing to be axially adjusted within the outer housing. Furthermore, sideways compensating movements are possible when the lamp housing is pivoted. Swiveling movement as well as axial movement and sideways movement are not coupled with each other.
- the lamp housing can be pivoted in any position, regardless of whether the lamp housing is inserted into the outer housing or is pulled out of the outer housing within the scope of the adjustment option. It takes considerable skill to pivot the lamp housing so that on the one hand it does not protrude unnecessarily far on the underside of the outer housing and on the other hand the beam output of the pivoted lamp housing is exposed. The necessary corrective measures are complicated by the fact that the handlebar arrangement take up the weight of the lamp housing and must be sufficiently stiff for this purpose.
- Luminaires with a stationary outer housing and a pivotably arranged lamp housing are also known in practice, in which the lamp housing has bearing journals on its lower casing section, which are held in a rotatable manner at corresponding bearing points of the outer housing.
- Such an arrangement is also not free from disadvantages. If the pivot pins are arranged in a vertical plane of symmetry running through the central axis of the outer housing, a part of the lamp housing of the same size corresponding to the pivoted-out part of the lamp housing is pivoted into the outer housing during the pivoting movement. The result of this is that the outer housing intersects the light cone, the resulting impairment increasing with increasing swivel angle.
- An improvement can be achieved by an asymmetrical arrangement of the trunnions outside the plane of symmetry. With increasing eccentric storage, however, the problem arises that the lamp housing can no longer be held in a rotationally fixed manner by static friction at the bearing points. Finally, it is disadvantageous that a considerable gap must be maintained between the outer housing and the lamp housing.
- the invention has for its object to provide a lamp in which without manual correction measures to be carried out it is ensured that the radiation output of the lamp housing is exposed in all swivel positions.
- the handlebar arrangement has at least one handlebar pair of links of different length and length, the two handlebars with the lamp housing forming a four-bar linkage with only one degree of freedom of movement and the kinematics of the four-bar linkage being set up in this way that the pivoting movement of the lamp housing is forced overlapping a sideways and downward movement of the lamp housing.
- - Quadrilateral joint is a technical term used in gear technology. In the gear system, the quadrilateral joint is a forced crank gear with a degree of freedom of movement.
- the lamp housing and the two links form a total of three movable gear members.
- the outer housing is the fourth stationary transmission link. All transmission members are rotatably connected to each other to form a positive crank mechanism, the kinematics of which are set up in such a way that a sideways and downward movement is superimposed on the pivoting movement of the lamp housing.
- the handlebar arrangement consists of two handlebar pairs, which are in the side projection form congruent quadrangles and support the lamp housing on both sides of a plane of symmetry running through the central axis of the outer housing.
- Side projection means the image plane orthogonal to the swivel axes of the handlebars.
- the invention teaches that the handlebars, each forming a pair of handlebars, are connected with a small handlebar distance in the side projection to a lower jacket section of the lamp housing and with a large handlebar distance to the upper edge of the outer housing facing away from the light outlet.
- the upper edge of the outer housing extends into the ceiling or wall recess.
- the upper edge of the outer housing relates to that end face which can be fastened to the ceiling or wall surface or at least is assigned to it.
- the handlebar pair arranged in the manner described consists of a short and a long handlebar.
- the short handlebar controls the sideways and downward movement and the long handlebar controls the swivel movement.
- the pivoting movement results from a rotational movement around the pivot point defined by the short handlebar at the end. Low static friction on the joints is sufficient to hold the lamp housing in any desired swivel position.
- a structurally preferred embodiment provides that the long handlebar is fork-shaped and covers and encloses the lamp housing at a distance.
- the invention teaches that the outer housing has a cylindrical fastening collar and has a mounting flange held rotatably thereon and that the link arrangement is connected to the mounting flange. This can be achieved in a particularly simple manner in that the fastening flange is held on an annular groove of the fastening collar. It is understood that in all embodiments the lamp housing is tapered towards the top. A particularly small gap distance between the outer housing and the lamp housing can be realized if the lamp housing is designed as a spherical cap, at least in its pivotable section.
- a preferred embodiment of the invention provides that the lamp housing has a spherical cap-shaped support body and a reflector inserted therein. On the support body is also the lamp holder, for. B. for a low-voltage halogen lamp. It is also expedient to arrange a stop pin for the lamp housing on the outer housing, against which the lamp housing rests in the pivoted-in basic position.
- the advantages of the invention can be seen in the fact that the beam output is exposed even when the lamp housing is pivoted and the light cone is not cut by the outer housing.
- the lamp housing is held in any swivel position due to the handlebar arrangement.
- the kinematics can easily be set up so that the distance between the outer housing and the lamp housing is small, particularly in the lower mouth region.
- the recessed luminaire shown in the figures is intended for installation in ceiling or wall surfaces.
- the basic structure includes an outer housing 1, which can be inserted in a fixed manner in a recess in the ceiling or wall surface, and a lamp housing 2 with a lamp holder 3.
- the lamp housing 2 is connected to the outer housing 1 by a handlebar arrangement 4 comprising at least two links 5, 6.
- a handlebar arrangement 4 comprising at least two links 5, 6.
- the handlebars 5, 6 form a quadrangle with the lamp housing 2, the kinematics of which is set up so that the pivoting movement of the lamp housing 2 is superimposed on a sideways and downward movement of the lamp housing 2.
- the pair of links forming a quadrilateral consists of a short handlebar 5 and a long handlebar 6.
- the two handlebars 5, 6 are with a small handlebar distance a in the side projection a to a lower jacket section of the lamp housing 2 and with a large handlebar distance b to the upper edge of the Outer housing 1, which extends into the ceiling or wall recess connected.
- the short link 5 controls the sideways and downward movement of the lamp housing 2 when the lamp housing 2 is pivoted.
- the long link 6 controls the pivoting movement, namely by rotation about the pivot point 7 defined by the short link 5 of the lamp housing 2.
- Has the pivot point 7 with vertical and to the central axis 8 of the outer housing 1 parallel alignment of the short handlebar 5 has taken its lower position shown in broken lines, the permissible swivel angle of the lamp housing 2 has been reached. A pivoting movement beyond this angular position is possible, but this leads to the lamp housing being pivoted into the outer housing in some areas and the light cone being cut by the outer housing.
- the long handlebar 6 is fork-shaped and covers the lamp housing 2 at a distance. Furthermore, it can be seen that the handlebar arrangement 4 consists of two handlebar pairs 5, 6 and 5 ', 6', which form congruent quadrilaterals in the side projection and support the lamp housing 2 on both sides of a plane of symmetry 9 running through the central axis of the outer housing. 1, the outer housing 1 has a cylindrical fastening collar 10 and a fastening flange 11 held thereon. The link arrangement 4 is connected to the fastening flange 11, which in turn is held on an annular groove 12 of the fastening collar 10.
- the lamp housing 2 has a spherical cap-shaped support body 13 with an inserted reflector 14 and a lamp holder 3 fastened on the outside, for example for a low-voltage halogen lamp.
- a stop pin 15 is arranged on the fastening flange 11 of the outer housing 1, on which the lamp housing 2 rests in the pivoted-in position.
- spreading spring elements 16 are arranged on the fastening collar 10, by means of which the fastening collar 10 can be locked in the associated ceiling or wall surface recess.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
Description
Die Erfindung bezieht sich gattungsgemäß auf eine Leuchte, insbesondere eine Einbauleuchte, mit ortsfestem Außengehäuse, schwenkbar angeordnetem Lampengehäuse und Lampenfassung, wobei das die Lampenfassung tragende Lampengehäuse durch eine Lenkeranordnung an das Außengehäuse angeschlossen ist. Das Außengehäuse der Einbauleuchte ist in einer Aussparung an einer Decken- oder Wandfläche einsetzbar. Im Rahmen der Erfindung liegt es aber auch, die Leuchte als Anbauleuchte auszugestalten, deren Außengehäuse an einer Decken- oder Wandfläche außenseitig befestigbar ist.The invention relates generically to a lamp, in particular a built-in lamp, with a stationary outer housing, pivotably arranged lamp housing and lamp holder, the lamp housing carrying the lamp holder being connected to the outer housing by a link arrangement. The outer housing of the recessed luminaire can be used in a recess on a ceiling or wall surface. However, it is also within the scope of the invention to design the luminaire as a surface-mounted luminaire whose outer housing can be fastened on the outside to a ceiling or wall surface.
Eine Einbauleuchte mit den eingangs beschriebenen Merkmalen ist aus US-A 3 974 371 bekannt. Durch die Lenkeranordnung ist das Lampengehäuse innerhalb des Außengehäuses axial verstellbar. Ferner sind seitwärts gerichtete Ausgleichsbewegungen möglich, wenn das Lampengehäuse verschwenkt wird. Schwenkbewegung sowie Axialbewegung und Seitwärtsbewegung sind nicht miteinander gekoppelt. Das Lampengehäuse ist in jeder Position schwenkbar, und zwar unabhängig davon, ob das Lampengehäuse in das Außengehäuse eingeschoben oder im Rahmen der Verstellmöglichkeit aus dem Außengehäuse herausgezogen ist. Es bedarf erheblicher Geschicklichkeit, das Lampengehäuse so zu verschwenken, daß es einerseits an der Unterseite des Außengehäuses nicht unnötig weit vorsteht und andererseits der Strahlenausgang des geschwenkten Lampengehäuses frei liegt. Die erforderlichen Korrekturmaßnahmen werden dadurch erschwert, daß die Lenkeranordnung das Gewicht des Lampengehäuses aufnehmen und zu diesem Zwecke ausreichend schwergängig ausgebildet sein muß.A recessed luminaire with the features described in the introduction is known from US Pat. No. 3,974,371. The handlebar arrangement allows the lamp housing to be axially adjusted within the outer housing. Furthermore, sideways compensating movements are possible when the lamp housing is pivoted. Swiveling movement as well as axial movement and sideways movement are not coupled with each other. The lamp housing can be pivoted in any position, regardless of whether the lamp housing is inserted into the outer housing or is pulled out of the outer housing within the scope of the adjustment option. It takes considerable skill to pivot the lamp housing so that on the one hand it does not protrude unnecessarily far on the underside of the outer housing and on the other hand the beam output of the pivoted lamp housing is exposed. The necessary corrective measures are complicated by the fact that the handlebar arrangement take up the weight of the lamp housing and must be sufficiently stiff for this purpose.
Aus der Praxis sind ferner Leuchten mit ortsfestem Außengehäuse und schwenkbar angeordneten Lampengehäuse bekannt, bei denen das Lampengehäuse an seinem unteren Mantelabschnitt Lagerzapfen aufweist, die an korrespondierenden Lagerstellen des Außengehäuses drehbeweglich gehalten sind. Auch eine solche Anordnung ist nicht frei von Nachteilen. Sind die Schwenkzapfen in einer vertikalen, durch die Mittelachse des Außengehäuses verlaufenden Symmetrie-Ebene angeordnet, so wird bei der Schwenkbewegung ein dem ausgeschwenkten Teil des Lampengehäuses entsprechender gleich großer Teil des Lampengehäuses in das Außengehäuse eingeschwenkt. Das hat zur Folge, daß das Außengehäuse den Lichtkegel schneidet, wobei die daraus resultierende Beeinträchtigung mit zunehmendem Schwenkwinkel größer wird. Eine Verbesserung kann durch eine asymmetrische Anordnung der Lagerzapfen außerhalb der Symmetrie-Ebene erreicht werden. Mit zunehmender exzentrischer Lagerung entsteht jedoch das Problem, daß das Lampengehäuse nicht mehr durch Haftreibung an den Lagerstellen drehfest gehalten werden kann. Schließlich ist nachteilig, daß zwischen Außengehäuse und Lampengehäuse ein beachtlicher Abstandsspalt eingehalten werden muß.Luminaires with a stationary outer housing and a pivotably arranged lamp housing are also known in practice, in which the lamp housing has bearing journals on its lower casing section, which are held in a rotatable manner at corresponding bearing points of the outer housing. Such an arrangement is also not free from disadvantages. If the pivot pins are arranged in a vertical plane of symmetry running through the central axis of the outer housing, a part of the lamp housing of the same size corresponding to the pivoted-out part of the lamp housing is pivoted into the outer housing during the pivoting movement. The result of this is that the outer housing intersects the light cone, the resulting impairment increasing with increasing swivel angle. An improvement can be achieved by an asymmetrical arrangement of the trunnions outside the plane of symmetry. With increasing eccentric storage, however, the problem arises that the lamp housing can no longer be held in a rotationally fixed manner by static friction at the bearing points. Finally, it is disadvantageous that a considerable gap must be maintained between the outer housing and the lamp housing.
Der Erfindung liegt die Aufgabe zugrunde, eine Leuchte anzugeben, bei der ohne manuell durchzuführende Korrekturmaßnahmen sichergestellt ist, daß der Strahlenausgang des Lampengehäuses in allen Schwenkstellungen frei liegt.The invention has for its object to provide a lamp in which without manual correction measures to be carried out it is ensured that the radiation output of the lamp housing is exposed in all swivel positions.
Diese Aufgabe wird bei der eingangs beschriebenen Leuchte erfindungsgemäß dadurch gelöst, daß die Lenkeranordnung mindestens ein Lenkerpaar aus eingliedrig und unterschiedlich lang ausgebildeten Lenkern aufweist, wobei die beiden Lenker mit dem Lampengehäuse ein Gelenkviereck mit nur einem Bewegungsfreiheitsgrad bilden und wobei die Kinematik des Gelenkvierecks so eingerichtet ist, daß der Schwenkbewegung des Lampengehäuses eine seitwärts- sowie abwärtsgerichtete Bewegung des Lampengehäuses zwangförmig überlagert ist. - Gelenkviereck bezeichnet einen Fachbegriff aus der Getriebetechnik. In der Getriebesystematik stellt das Gelenkviereck ein zwangläufiges Kurbelgetriebe mit einem Bewegungsfreiheitsgrad dar. Es umfaßt vier Glieder, die durch vier Gelenkpunkte zu einer geschlossenen Drehgelenkkette verbunden sind, wobei eines der Glieder ortsfest ist (DUBBEL Band I, 13. Auflage, Seiten 856 bis 858). Nach der erfindungsgemäßen Lehre bilden das Lampengehäuse und die beiden Lenker insgesamt drei bewegliche Getriebeglieder. Das Außengehäuse ist das vierte ortsfeste Getriebeglied. Sämtliche Getriebeglieder sind drehbeweglich miteinander zu einem zwangläufigen Kurbelgetriebe verbunden, dessen Kinematik so eingerichtet ist, daß der Schwenkbewegung des Lampengehäuses eine seitwärts- sowie abwärtsgerichtete Bewegung überlagert ist.This object is achieved according to the invention in the luminaire described in the introduction in that the handlebar arrangement has at least one handlebar pair of links of different length and length, the two handlebars with the lamp housing forming a four-bar linkage with only one degree of freedom of movement and the kinematics of the four-bar linkage being set up in this way that the pivoting movement of the lamp housing is forced overlapping a sideways and downward movement of the lamp housing. - Quadrilateral joint is a technical term used in gear technology. In the gear system, the quadrilateral joint is a forced crank gear with a degree of freedom of movement. It comprises four links that are connected by four pivot points to form a closed swivel chain, one of the links being stationary (DUBBEL Volume I, 13th edition, pages 856 to 858) . According to the teaching of the invention, the lamp housing and the two links form a total of three movable gear members. The outer housing is the fourth stationary transmission link. All transmission members are rotatably connected to each other to form a positive crank mechanism, the kinematics of which are set up in such a way that a sideways and downward movement is superimposed on the pivoting movement of the lamp housing.
Aus Stabilitätsgründen ist es zweckmäßig, daß die Lenkeranordnung aus zwei Lenkerpaaren besteht, die in der Seitenprojektion deckungsgleiche Gelenkvierecke bilden und das Lampengehäuse beidseits einer durch die Mittelachse des Außengehäuses verlaufenden Symmetrie-Ebene abstützen. Seitenprojektion meint die zu den Schwenkachsen der Lenker orthogonale Bildebene. In weiterer Ausgestaltung lehrt die Erfindung, daß die jeweils ein Lenkerpaar bildenden Lenker mit einem in der Seitenprojektion kleinen Lenkerabstand an einen unteren Mantelabschnitt des Lampengehäuses und mit großem Lenkerabstand an den zum Lichtaustritt abgewandten oberen Rand des Außengehäuses angeschlossen sind. Bei einer Einbauleuchte erstreckt sich der obere Rand des Außengehäuses in die Decken- oder Wandaussparung hinein. Ist die erfindungsgemäße Leuchte als Anbauleuchte ausgebildet, so bezieht sich der obere Rand des Außengehäuses auf diejenige Stirnfläche, die an der Decken- oder Wandfläche befestigbar oder dieser zumindest zugeordnet ist. Das in der beschriebenen Weise angeordnete Lenkerpaar besteht aus einem kurzen und einem langen Lenker. Der kurze Lenker steuert die seitwärts und abwärts gerichtete Bewegung und der lange Lenker die Schwenkbewegung. Die Schwenkbewegung ergibt sich aus einer Drehbewegung um den durch den kurzen Lenker endseitig definierten Drehpunkt. Geringe Haftreibung an den Gelenken reicht aus, um das Lampengehäuse in jeder gewünschten Schwenkstellung drehsicher zu halten. Eine konstruktiv bevorzugte Ausführungsform sieht vor, daß der lange Lenker gabelförmig ausgebildet ist und das Lampengehäuse mit Abstand überfaßt sowie umfaßt.For reasons of stability, it is expedient that the handlebar arrangement consists of two handlebar pairs, which are in the side projection form congruent quadrangles and support the lamp housing on both sides of a plane of symmetry running through the central axis of the outer housing. Side projection means the image plane orthogonal to the swivel axes of the handlebars. In a further embodiment, the invention teaches that the handlebars, each forming a pair of handlebars, are connected with a small handlebar distance in the side projection to a lower jacket section of the lamp housing and with a large handlebar distance to the upper edge of the outer housing facing away from the light outlet. In the case of a recessed luminaire, the upper edge of the outer housing extends into the ceiling or wall recess. If the luminaire according to the invention is designed as a surface-mounted luminaire, the upper edge of the outer housing relates to that end face which can be fastened to the ceiling or wall surface or at least is assigned to it. The handlebar pair arranged in the manner described consists of a short and a long handlebar. The short handlebar controls the sideways and downward movement and the long handlebar controls the swivel movement. The pivoting movement results from a rotational movement around the pivot point defined by the short handlebar at the end. Low static friction on the joints is sufficient to hold the lamp housing in any desired swivel position. A structurally preferred embodiment provides that the long handlebar is fork-shaped and covers and encloses the lamp housing at a distance.
Soll das Lampengehäuse nicht nur schwenkbar, sondern zugleich auch drehbar sein, so lehrt die Erfindung, daß das Außengehäuse einen zylindrischen Befestigungskragen und einen daran drehbeweglich gehaltenen Befestigungsflansch aufweist und daß die Lenkeranordnung an den Befestigungsflansch angeschlossen ist. Auf besonders einfache Weise kann dies dadurch verwirklicht werden, daß der Befestigungsflansch an einer Ringnut des Befestigungskragens gehalten ist. Es versteht sich, daß bei allen Ausführungsformen das Lampengehäuse nach oben hin verjüngt ist. Ein besonders kleiner Spaltabstand zwischen Außengehäuse und Lampengehäuse kann dann verwirklicht werden, wenn das Lampengehäuse zumindest in seinem ausschwenkbaren Abschnitt als Kugelkalotte ausgebildet ist. Eine bevorzugte Ausführungsform der Erfindung sieht vor, daß das Lampengehäuse einen kugelkalottenförmigen Stützkörper und einen darin eingesetzten Reflektor aufweist. An dem Stützkörper ist auch die Lampenfassung, z. B. für eine Niedervolt-Halogenlampe, befestigt. Zweckmäßig ist es auch, an dem Außengehäuse einen Anschlagstift für das Lampengehäuse anzuordnen, an dem das Lampengehäuse in der eingeschwenkten Grundstellung anliegt.If the lamp housing should not only be pivotable but also rotatable, the invention teaches that the outer housing has a cylindrical fastening collar and has a mounting flange held rotatably thereon and that the link arrangement is connected to the mounting flange. This can be achieved in a particularly simple manner in that the fastening flange is held on an annular groove of the fastening collar. It is understood that in all embodiments the lamp housing is tapered towards the top. A particularly small gap distance between the outer housing and the lamp housing can be realized if the lamp housing is designed as a spherical cap, at least in its pivotable section. A preferred embodiment of the invention provides that the lamp housing has a spherical cap-shaped support body and a reflector inserted therein. On the support body is also the lamp holder, for. B. for a low-voltage halogen lamp. It is also expedient to arrange a stop pin for the lamp housing on the outer housing, against which the lamp housing rests in the pivoted-in basic position.
Die Vorteile der Erfindung sind darin zu sehen, daß der Strahlenausgang auch bei verschwenktem Lampengehäuse freiliegt und der Lichtkegel von dem Außengehäuse nicht geschnitten wird. Das Lampengehäuse ist aufgrund der Lenkeranordnung drehsicher in jeder Schwenkstellung gehalten. Die Kinematik kann ohne weiteres so eingerichtet werden, daß der Abstand zwischen Außengehäuse und Lampengehäuse insbesondere im unteren Mündungsbereich klein ist.The advantages of the invention can be seen in the fact that the beam output is exposed even when the lamp housing is pivoted and the light cone is not cut by the outer housing. The lamp housing is held in any swivel position due to the handlebar arrangement. The kinematics can easily be set up so that the distance between the outer housing and the lamp housing is small, particularly in the lower mouth region.
Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung ausführlicher erläutert. Es zeigen schematisch
- Fig. 1
- eine Einbauleuchte in perspektivischer Darstellung, teilweise gebrochen,
- Fig. 2
- die Verstellbewegung einer Einbauleuchte gemäß Fig. 1.
- Fig. 1
- a recessed light in perspective, partially broken,
- Fig. 2
- the adjustment movement of a recessed light according to FIG. 1.
Die in den Figuren dargestellte Einbauleuchte ist für den Einbau in Decken- oder Wandflächen bestimmt. Zum grundsätzlichen Aufbau gehört ein Außengehäuse 1, das in eine Aussparung der Decken- oder Wandfläche ortsfest einsetzbar ist, und ein Lampengehäuse 2 mit Lampenfassung 3. Das Lampengehäuse 2 ist durch eine Lenkeranordnung 4 aus zumindest zwei Lenkern 5, 6 mit dem Außengehäuse 1 verbunden. Insbesondere aus der Fig. 2 wird deutlich, daß die Lenker 5, 6 mit dem Lampengehäuse 2 ein Gelenkviereck bilden, dessen Kinematik so eingerichtet ist, daß der Schwenkbewegung des Lampengehäuses 2 eine seitwärts- sowie abwärtsgerichtete Bewegung des Lampengehäuses 2 überlagert ist. Das ein Gelenkviereck bildende Lenkerpaar besteht dabei aus einem kurzen Lenker 5 sowie einem langen Lenker 6. Die beiden Lenker 5, 6 sind mit einem in der Seitenprojektion kleinen Lenkerabstand a an einen unteren Mantelabschnitt des Lampengehäuses 2 und mit großem Lenkerabstand b an den oberen Rand des Außengehäuses 1, welcher sich in die Decken- oder Wandaussparung hinein erstreckt, angeschlossen. Der kurze Lenker 5 steuert bei einer Schwenkbewegung des Lampengehäuses 2 die seitwärts- und abwärtsgerichtete Bewegung des Lampengehäuses 2. Der lange Lenker 6 steuert die Schwenkbewegung, und zwar durch Drehung um den durch den kurzen Lenker 5 definierten Drehpunkt 7 des Lampengehäuses 2. Hat der Drehpunkt 7 bei vertikaler und zur Mittelachse 8 des Außengehäuses 1 paralleler Ausrichtung des kurzen Lenkers 5 seine untere, gestrichelt eingezeichnete Position eingenommen, so ist der zulässige Schwenkwinkel des Lampengehäuses 2 erreicht. Eine Schwenkbewegung über diese Winkelstellung hinaus ist zwar möglich, doch führt dies dazu, daß das Lampengehäuse bereichsweise in das Außengehäuse eingeschwenkt und der Lichtkegel von dem Außengehäuse geschnitten wird.The recessed luminaire shown in the figures is intended for installation in ceiling or wall surfaces. The basic structure includes an
Die Fig. 1 zeigt die konstruktive Ausgestaltung der erfindungsgemäßen Einbauleuchte. Der lange Lenker 6 ist gabelförmig ausgebildet und überfaßt das Lampengehäuse 2 mit Abstand. Im übrigen erkennt man, daß die Lenkeranordnung 4 aus zwei Lenkerpaaren 5, 6 und 5', 6' besteht, die in der Seitenprojektion deckungsgleiche Gelenkvierecke bilden und das Lampengehäuse 2 beidseits einer durch die Mittelachse des Außengehäuses verlaufenden Symmetrie-Ebene 9 abstützen. Bei dem Ausführungsbeispiel gemäß Fig. 1 weist das Außengehäuse 1 einen zylindrischen Befestigungskragen 10 und einen daran beweglich gehaltenen Befestigungsflansch 11 auf. Die Lenkeranordnung 4 ist an den Befestigungsflansch 11 angeschlossen, der seinerseits an einer Ringnut 12 des Befestigungskragens 10 gehalten ist. Das Lampengehäuse 2 weist einen kugelkalottenförmigen Stützkörper 13 mit eingesetztem Reflektor 14 und außenseitig befestigter Lampenfassung 3, beispielsweise für eine Niedervolt-Halogenlampe, auf. Schließlich erkennt man, daß an dem Befestigungsflansch 11 des Außengehäuses 1 ein Anschlagstift 15 angeordnet ist, an dem das Lampengehäuse 2 in der eingeschwenkten Position anliegt. Außenseitig sind an dem Befestigungskragen 10 aufspreizende Federelemente 16 angeordnet, durch welche der Befestigungskragen 10 in der zugeordneten Decken- oder Wandflächenaussparung arretierbar ist.1 shows the structural design of the recessed luminaire according to the invention. The
Claims (8)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4036229 | 1990-11-14 | ||
| DE4036229A DE4036229A1 (en) | 1990-11-14 | 1990-11-14 | LAMP |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0485811A2 true EP0485811A2 (en) | 1992-05-20 |
| EP0485811A3 EP0485811A3 (en) | 1992-06-10 |
| EP0485811B1 EP0485811B1 (en) | 1995-05-31 |
Family
ID=6418232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91118584A Expired - Lifetime EP0485811B1 (en) | 1990-11-14 | 1991-10-31 | Light fixture |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5145249A (en) |
| EP (1) | EP0485811B1 (en) |
| DE (2) | DE4036229A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2088367A1 (en) | 2008-02-11 | 2009-08-12 | Hartmut S. Engel | Lamp |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4114509C2 (en) * | 1991-05-03 | 1997-12-11 | Halloform Gmbh & Co Kg | Recessed luminaire with swivel housing |
| US5268824A (en) * | 1993-02-22 | 1993-12-07 | Accon, Inc. | Manually operated boat light |
| US5564815A (en) * | 1994-06-29 | 1996-10-15 | Lightron Of Cornwall Incorporated | Adjustable light fixture |
| US5609413A (en) * | 1996-02-12 | 1997-03-11 | Eclairage Contraste | Adjustable light fixture |
| DE19615639B4 (en) * | 1996-04-21 | 2009-05-07 | Acl Lichttechnik Gmbh | recessed light |
| USD379546S (en) * | 1996-04-26 | 1997-05-27 | Lightron Of Cornwall Incorporated | Recessed adjustable light fixture |
| GB2336426A (en) * | 1998-04-16 | 1999-10-20 | Ibl Lighting Limited | Adjustable lamp |
| GB2358972A (en) | 1998-10-01 | 2001-08-08 | Inotec Ges Fuer Verkaufsfoerde | Circuit arrangemnt for energy-saving operation of a fluorescent tube |
| EP1159857B1 (en) * | 1999-09-17 | 2009-04-22 | Brightline L.P. | Adjustable fluorescent lighting fixtures |
| US6283430B1 (en) | 2000-04-28 | 2001-09-04 | Cooper Technologies Company | Horizontal socket housing assembly |
| US6343873B1 (en) | 2000-04-28 | 2002-02-05 | Cooper Industries, Inc. | Lighting fixture with downlight reflector and wallwash reflector |
| US6431723B1 (en) | 2000-04-28 | 2002-08-13 | Cooper Technologies, Company | Recessed lighting fixture |
| US6802627B2 (en) | 2002-12-26 | 2004-10-12 | Jerry F. Fischer | Directional luminaire |
| US20060198134A1 (en) * | 2005-03-01 | 2006-09-07 | Fowler Wilton L Jr | Fluorescent wall wash luminaire with a sliding mechanism for adjusting lamp position |
| EP1783422B1 (en) * | 2005-11-04 | 2007-10-03 | Flowil International Lighting (HOLDING) B.V. | Recessed lamp for a light source, in particular for a halogen light source |
| US20070103913A1 (en) * | 2005-11-07 | 2007-05-10 | Su-Ju Lin | Lamp |
| US7967481B2 (en) * | 2008-03-17 | 2011-06-28 | Blix Lighting | Adjustable recessed light fixture |
| US9310037B2 (en) | 2012-02-08 | 2016-04-12 | Brightline, Inc. | Motorized lighting fixture with motor and light dimming control |
| US10344952B2 (en) | 2016-05-24 | 2019-07-09 | Georgi Yosifov Georgiev | Recessed light-emitting diode lighting fixture |
| US10605419B2 (en) * | 2017-10-23 | 2020-03-31 | Usai, Llc | Lighting fixture for sloped ceiling |
| IT201800003531A1 (en) * | 2018-03-14 | 2019-09-14 | Forma Lighting Italia S R L | MOTORIZED RECESSED SPOTLIGHT |
| US10976036B2 (en) | 2019-03-05 | 2021-04-13 | Abl Ip Holding Llc | Rotatable linear downlight |
| USD979826S1 (en) | 2020-02-25 | 2023-02-28 | Abl Ip Holding Llc | Luminaire |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2636979A (en) * | 1953-04-28 | |||
| US3974371A (en) * | 1975-06-09 | 1976-08-10 | Indy Lighting, Inc. | Adjustable light fixture |
| DE2455935A1 (en) * | 1974-11-27 | 1976-08-12 | Audi Nsu Auto Union Ag | Retractable headlamp for car - is mounted on parallel levers to enable flasher signals to be made through grille |
| DE2809616A1 (en) * | 1978-03-06 | 1979-09-13 | Hoffmeister Leuchten Kg | Electrical lighting fitting for ceiling - has lever and gear adjuster for rotary reflector mounted within cup shaped housing |
| US4602319A (en) * | 1983-04-15 | 1986-07-22 | Mazda Motor Corporation | Retractable head-light device for automobiles |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3182187A (en) * | 1963-01-14 | 1965-05-04 | Silvray Litecraft Corp | Lighting fixture for sloping ceilings |
| US3660651A (en) * | 1970-07-29 | 1972-05-02 | Indy Lighting Inc | Adjustable light fixture |
| US4232361A (en) * | 1978-12-07 | 1980-11-04 | Mcgraw-Edison Company | Adjustable light fixture |
| US4851970A (en) * | 1988-06-07 | 1989-07-25 | Bronder David G | Swing-away taillight assembly |
| US4881157A (en) * | 1989-04-27 | 1989-11-14 | Usi Lighting, Inc. | Adjustable light fixture |
| US5081566A (en) * | 1990-12-13 | 1992-01-14 | Alm Surgical Equipment, Inc. | Concealable surgical light |
-
1990
- 1990-11-14 DE DE4036229A patent/DE4036229A1/en active Granted
-
1991
- 1991-10-31 DE DE59105622T patent/DE59105622D1/en not_active Expired - Fee Related
- 1991-10-31 EP EP91118584A patent/EP0485811B1/en not_active Expired - Lifetime
- 1991-11-08 US US07/791,657 patent/US5145249A/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2636979A (en) * | 1953-04-28 | |||
| DE2455935A1 (en) * | 1974-11-27 | 1976-08-12 | Audi Nsu Auto Union Ag | Retractable headlamp for car - is mounted on parallel levers to enable flasher signals to be made through grille |
| US3974371A (en) * | 1975-06-09 | 1976-08-10 | Indy Lighting, Inc. | Adjustable light fixture |
| DE2809616A1 (en) * | 1978-03-06 | 1979-09-13 | Hoffmeister Leuchten Kg | Electrical lighting fitting for ceiling - has lever and gear adjuster for rotary reflector mounted within cup shaped housing |
| US4602319A (en) * | 1983-04-15 | 1986-07-22 | Mazda Motor Corporation | Retractable head-light device for automobiles |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2088367A1 (en) | 2008-02-11 | 2009-08-12 | Hartmut S. Engel | Lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| US5145249A (en) | 1992-09-08 |
| DE4036229C2 (en) | 1993-02-25 |
| DE59105622D1 (en) | 1995-07-06 |
| EP0485811A3 (en) | 1992-06-10 |
| EP0485811B1 (en) | 1995-05-31 |
| DE4036229A1 (en) | 1992-05-21 |
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