EP1048893B1 - Vehicle lamp - Google Patents

Vehicle lamp Download PDF

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Publication number
EP1048893B1
EP1048893B1 EP00107830A EP00107830A EP1048893B1 EP 1048893 B1 EP1048893 B1 EP 1048893B1 EP 00107830 A EP00107830 A EP 00107830A EP 00107830 A EP00107830 A EP 00107830A EP 1048893 B1 EP1048893 B1 EP 1048893B1
Authority
EP
European Patent Office
Prior art keywords
light guide
light
lamp according
elements
face
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.)
Expired - Lifetime
Application number
EP00107830A
Other languages
German (de)
French (fr)
Other versions
EP1048893A2 (en
EP1048893A3 (en
Inventor
Heinz Machura
Achim Schulte
Heinz-Albert Püttmann
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.)
Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and Co
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 Hella KGaA Huek and Co filed Critical Hella KGaA Huek and Co
Publication of EP1048893A2 publication Critical patent/EP1048893A2/en
Publication of EP1048893A3 publication Critical patent/EP1048893A3/en
Application granted granted Critical
Publication of EP1048893B1 publication Critical patent/EP1048893B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/19—Attachment of light sources or lamp holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/237—Light guides characterised by the shape of the light guide rod-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces

Definitions

  • the invention relates to a luminaire for vehicles, in particular tail lamp, with at least one elongated light guide element having a first end face at a first end and a second end face at a second end facing away from the first end, wherein at least one of the end faces is designed as a light coupling surface, and with a base of a housing on which the light-guiding element can be fastened.
  • a light for vehicles, especially rear light for vehicles which has four adjacent elongate light-guiding elements.
  • the light-guiding elements are arranged on a base part of a housing. At their underside facing the base, the light-guiding elements have reflection optics.
  • One of the opposite end faces is formed as a light coupling surface via the light of an arranged on a printed circuit board adjacent light emitting diode (LED) coupled and coupled on the underside facing away from the upper side transversely to the longitudinal direction of the light guide.
  • Upstream of the top is a translucent, the taillight covering lens arranged.
  • a disadvantage of the known lamp is that various fastening elements are necessary for positioning the light guide, whereby the assembly is relatively complicated and expensive.
  • Object of the present invention is therefore to improve the known lamp so that their assembly can be performed easier and cheaper.
  • a first fastening element is designed as a latching hook arranged on an underside of the light-guiding element having a reflection optic, and a second fastening element opposite the first fastening element is designed as an abutment, so that the light-guiding element can be connected to the base in a latching manner.
  • the fastening elements as latching hooks and counter-bearings, it is possible to use the light-guiding element in corresponding receptacles of the base part self-locking and thus fast, easy and safe.
  • the second fastening element merges into a separable rod casting laterally offset from the adjacent end face.
  • sprue Due to the laterally offset sprue can be dispensed with a previously common arranged centrally on the end gate, so that after removal of the casting, a subsequent polishing of the end face deleted. By a slight inclination of the faces, these can be highly polished, demoulded dimensionally stable.
  • the sprue can be used as a fastener.
  • a plurality of light-guiding elements are arranged on the base part.
  • the Light guide elements are connected to each other via common fasteners and form a light unit, which is designed as a molded part.
  • the light-guiding elements extend in the horizontal direction equidistant to the light-disk contour of a light disk arranged upstream in the emission direction and are curved in accordance with the light-disk contour. In the vertical direction, the light guide elements are staggered arranged.
  • the Befest onlyselemte an integrated circuit board receptacle for the direct positioning of arranged on a circuit board LEDs on.
  • the LEDs arranged on a printed circuit board can be easily and safely positioned with respect to the light-guiding elements.
  • the same circuit boards can be used.
  • the light unit can be completely mounted in the housing of the lamp or on the base.
  • the light-guiding elements can be fastened to the base by ultrasonic welding.
  • a luminaire consists essentially of a housing 1 and a light guide 2.
  • the housing 1 has a base 4 on its rear side 3 facing a vehicle body (not shown). On its front side 5 facing away from the back 3, the base part 4 is preceded by a translucent lens 6
  • the light-guiding element 2 is designed as an elongated rod 7, whose first end face 9 arranged transversely to its longitudinal axis 8 and opposite second end face 10 are designed as light-coupling surfaces 11.
  • the first end face 9 is arranged at a first end 12 and the second end face 10 is arranged at a second end 13 of the light-guiding element 2 or bar 7.
  • the light guide 2 has a reflection lens 15, the light coupled via the light coupling surfaces 11 light from the light input surfaces 11 upstream LEDs (LED's) 16 over a plurality of reflective surfaces and transverse to the longitudinal axis 8 via one of the bottom 14th opposite radiating surface 17 of the rod 7 radiates in the front side 5 of the housing 1 facing emission direction.
  • LED's upstream LEDs
  • a first fastening element 18 is laterally adjacent to the first end face 9 and a second fastening element 19 is arranged laterally adjacent to the second end face 10.
  • the first fastening element 18 is designed as a latching hook 20 arranged on the underside 14 and the second fastening element 19 as an opposing bearing 21 acting in the direction of the longitudinal axis 8.
  • the light guide 2 via the fasteners 18, 19 connected to the base 4.
  • the second fastening element 19 is offset laterally to the adjacent second end face in a rod gate 24, which is separated after spraying the light-guiding element, ie before assembly, to the intended length of the second fastening element 19.
  • the assembly of the light guide 2 is effected by a one-sided insertion of the second fastening element 19 in the arranged on the base part 4 second receptacle 23 and subsequent pivoting to the detent point, the latch hook 20 engages in the first receptacle 22 of the base 4. After covering the base 4 with the lens 6, the light can be screwed at the intended location.
  • a housing 1 'on four adjacent light guide elements 2' which are connected to each other via common fastening elements 18 ', 19' and form a light unit 25 which is formed as a molded part.
  • the light guide elements 2 ' are in the horizontal direction Equidistant to the lens 6 'and arranged to the curved lens shape on the base 4'. In the vertical direction, the light guide elements 2 'staggered on the base 4' are arranged.
  • the fastening elements 18 ', 19' have an integrated circuit board receptacle 26.
  • the printed circuit board receptacle 26 is bounded in each case by an inner wall 27 towards the adjacent end faces 9 ', 10'.
  • a parallel outer wall 28 is arranged at a distance from the inner wall 27, a parallel outer wall 28 is arranged.
  • Inner wall 27 and outer wall 28 are connected to each other via two opposite end walls 29.
  • the end walls 29 have receiving grooves for receiving printed circuit boards 30.
  • LEDs 31 are arranged, which are the respective adjacent end faces 9 ', 10' upstream and whose light is coupled into the light guide 2 '.
  • the light unit 25 is arranged complete with printed circuit boards 30 and arranged thereon light emitting diodes 31 on the base 4 'and connected thereto by ultrasonic welding.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Planar Illumination Modules (AREA)

Description

Die Erfindung betrifft eine Leuchte für Fahrzeuge, insbesondere Heckleuchte, mit mindestens einem langgestreckten Lichtleitelement, das an einem ersten Ende eine erste Stirnfläche und an einem dem ersten Ende abgewandten zweiten Ende eine zweite Stirnfläche aufweist, wobei mindestens eine der Stirnflächen als Lichteinkoppelfläche ausgebildet ist, und mit einem Grundteil eines Gehäuses an dem das Lichtleitelement befestigbar ist.The invention relates to a luminaire for vehicles, in particular tail lamp, with at least one elongated light guide element having a first end face at a first end and a second end face at a second end facing away from the first end, wherein at least one of the end faces is designed as a light coupling surface, and with a base of a housing on which the light-guiding element can be fastened.

Aus der DE 298 07 774 U1 ist eine Leuchte für Fahrzeuge, insbesondere Heckleuchte für Fahrzeuge bekannt, die vier nebeneinander verlaufende langgestreckte Lichtleitelemente aufweist. Die Lichtleitelemente sind auf einem Grundteil eines Gehäuses angeordnet. An ihrer dem Grundteil zugewandten Unterseite weisen die Lichtleitelemente eine Reflexionsoptik auf. Eine der einander gegenüberliegenden Stirnseiten ist als eine Lichteinkoppelfläche ausgebildet über die Licht einer auf einer Leiterplatte angeordneten benachbarten Leuchtdiode (LED) eingekoppelt und auf der der Unterseite abgewandten Oberseite quer zur Längsrichtung des Lichtleitelementes ausgekoppelt wird. Der Oberseite vorgelagert ist eine lichtdurchlässige, die Heckleuchte abdeckende Lichtscheibe angeordnet.From DE 298 07 774 U1 a light for vehicles, especially rear light for vehicles is known, which has four adjacent elongate light-guiding elements. The light-guiding elements are arranged on a base part of a housing. At their underside facing the base, the light-guiding elements have reflection optics. One of the opposite end faces is formed as a light coupling surface via the light of an arranged on a printed circuit board adjacent light emitting diode (LED) coupled and coupled on the underside facing away from the upper side transversely to the longitudinal direction of the light guide. Upstream of the top is a translucent, the taillight covering lens arranged.

Nachteilig bei der bekannten Leuchte ist, daß zur Positionierung der Lichtleitelemente verschiedene Befestigungselemente notwendig sind, wodurch die Montage relativ aufwendig und kostenintensiv ist.A disadvantage of the known lamp is that various fastening elements are necessary for positioning the light guide, whereby the assembly is relatively complicated and expensive.

Aufgabe der vorliegenden Erfindung ist es daher, die bekannte Leuchte so zu verbessern, daß ihre Montage einfacher und kostengünstiger durchgeführt werden kann.Object of the present invention is therefore to improve the known lamp so that their assembly can be performed easier and cheaper.

Diese Aufgabe wird erfindungsgemäß in Verbindung mit dem Oberbegriff des Anspruches 1 dadurch gelöst, daß das Lichtleitelement an seinen Enden den Stirnflächen seitlich benachbarte, angeformte Befestigungselemente aufweist.This object is achieved in connection with the preamble of claim 1, characterized in that the light guide element at its ends laterally adjacent to the end faces, molded fasteners.

Dadurch, daß das Lichtleitelement angeformte Befestigungselemente aufweist, verringert sich die Zahl der zur Montage notwendigen Einzelteile bzw. gesonderter Befestigungselemente. Dadurch wird die Montage vereinfacht und kann kostengünstiger durchgeführt werden.
Gemäß einer bevorzugten Ausführungsform der Erfindung ist ein erstes Befestigungselement als ein an einer eine Reflexionsoptik aufweisenden Unterseite des Lichtleitelementes angeordneter Rasthaken ausgebildet und ein dem ersten Befestigungselement gegenüberliegendes zweites Befestigungselement als ein Gegenlager ausgebildet, so daß das Lichtleitelement rastend mit dem Grundteil verbindbar ist.Due to the fact that the light-guiding element has integrally formed fastening elements, the number of individual parts or separate fastening elements required for assembly is reduced. As a result, the assembly is simplified and can be carried out more cheaply.
According to a preferred embodiment of the invention, a first fastening element is designed as a latching hook arranged on an underside of the light-guiding element having a reflection optic, and a second fastening element opposite the first fastening element is designed as an abutment, so that the light-guiding element can be connected to the base in a latching manner.

Durch die Ausbildung der Befestigungselemente als Rasthaken und Gegenlager ist es möglich, das Lichtleitelement in entsprechende Aufnahmen des Grundteiles selbstrastend und somit schnell, einfach und sicher einzusetzen.Due to the design of the fastening elements as latching hooks and counter-bearings, it is possible to use the light-guiding element in corresponding receptacles of the base part self-locking and thus fast, easy and safe.

Nach einer weiteren bevorzugten Ausführungsform der Erfindung geht das zweite Befestigungselement in einen zur benachbarten Stirnfläche seitlich versetzten abtrennbaren Stangenanguß über.According to a further preferred embodiment of the invention, the second fastening element merges into a separable rod casting laterally offset from the adjacent end face.

Durch den seitlich versetzten Anguß kann auf einen bisher üblichen zentral auf der Stirnfläche angeordneten Anguß verzichtet werden, so daß nach Abtrennen des Abgusses ein nachträgliches Polieren der Stirnfläche entfällt. Durch eine leichte Schrägstellung der Stirnflächen können diese hochglanzpoliert, maßhaltig entformt werden. Zudem kann der Anguß als Befestigungselement verwendet werden.Due to the laterally offset sprue can be dispensed with a previously common arranged centrally on the end gate, so that after removal of the casting, a subsequent polishing of the end face deleted. By a slight inclination of the faces, these can be highly polished, demoulded dimensionally stable. In addition, the sprue can be used as a fastener.

Gemäß einer weiteren bevorzugten Ausführungform der Erfindung sind eine Mehrzahl von Lichtleitelementen auf dem Grundteil angeordnet. Die Lichtleitelemente sind über gemeinsame Befestigungselemente miteinander verbunden und bilden eine Lichteinheit, die als ein Spritzling ausgebildet ist.According to a further preferred embodiment of the invention, a plurality of light-guiding elements are arranged on the base part. The Light guide elements are connected to each other via common fasteners and form a light unit, which is designed as a molded part.

Dadurch, daß die Mehrzahl von Lichtleitelementen über ihre Befestigungselemente zu einem Spritzling verbunden sind, vereinfacht sich sowohl die Herstellung als ach die Montage der Lichtleitelemente erheblich.Characterized in that the plurality of light guide elements are connected via their fastening elements to a molded part, both the production as well as the assembly of the light-guiding considerably simplifies.

Nach einer weiteren bevorzugten Ausführungsform der Erfindung verlaufen die Lichtleitelemente in horizontaler Richtung äquidistant zur Lichtscheibenkontur einer in Abstrahlrichtung vorgelagerten Lichtscheibe und sind entsprechend der Lichtscheibenkontur gekrümmt. In vertikaler Richtung sind die Lichtleitelemente gestuft versetzt angeordnet.According to a further preferred embodiment of the invention, the light-guiding elements extend in the horizontal direction equidistant to the light-disk contour of a light disk arranged upstream in the emission direction and are curved in accordance with the light-disk contour. In the vertical direction, the light guide elements are staggered arranged.

Durch die räumliche Anordnung der Lichtleitelemente ist trotz relativ niedriger Montagekosten eine optimierte Anpassung an das Design moderner Heckleuchten möglich.Due to the spatial arrangement of the light-guiding elements an optimized adaptation to the design of modern rear lights is possible despite relatively low installation costs.

Gemäß einer weiteren bevorzugten Ausführungsform der Erfindung weisen die Befestigungselemte eine integrierte Leiterplattenaufnahme zur direkten Positionierung von auf einer Leiterplatte angeordneten LED's auf.According to a further preferred embodiment of the invention, the Befestigungselemte an integrated circuit board receptacle for the direct positioning of arranged on a circuit board LEDs on.

Durch die integrierte Leiterplattenaufnahme können die auf einer Leiterplatte angeordneten LED's einfach und sicher gegenüber den Lichtleitelementen positioniert werden. Für gegenüberliegende Stirnflächen können die gleichen Leiterplatten verwendet werden. Die Lichteinheit kann komplett in dem Gehäuse der Leuchte bzw. an dem Grundteil montiert werden.Due to the integrated PCB holder, the LEDs arranged on a printed circuit board can be easily and safely positioned with respect to the light-guiding elements. For opposite faces the same circuit boards can be used. The light unit can be completely mounted in the housing of the lamp or on the base.

Nach einer weiteren bevorzugten Ausführungsform der Erfindung sind die Lichtleitelemente durch Ultraschallschweißen an dem Grundteil befestigbar.According to a further preferred embodiment of the invention, the light-guiding elements can be fastened to the base by ultrasonic welding.

Damit ist es möglich, ohne spezielle Rastteile die komplette Lichteinheit einfach und dauerhaft durch Ultraschallschweißen an dem Grundteil zu befestigen.This makes it possible to fix the complete light unit simply and permanently by means of ultrasonic welding to the base part without special locking parts.

Weitere Einzelheiten der Erfindung ergeben sich aus der nachfolgenden ausführlichen Beschreibung und den beigefügten Zeichnungen, in denen bevorzugte Ausführungsformen der Erfindung beispielsweise veranschaulicht sind.Further details of the invention will become apparent from the following detailed description and the accompanying drawings, in which preferred embodiments of the invention are illustrated, for example.

In den Zeichnungen zeigen:

Figur 1:
Einen horizontalen Schnitt durch eine Heckleuchte mit einem Lichtleitelement,
Figur 2:
einen horizontalen Schnitt des Lichtleitelementes der Heckleuchte von Figur 1,
Figur 3:
einen horizontalen Schnitt durch eine Heckleuchte mit vier Lichtleitelementen,
Figur 4:
einen vertikalen Schnitt durch die Heckleuchte von Figur 3 und
Figur 5:
eine räumliche Darstellung der Lichteinheit von Figur 3.
In the drawings show:
FIG. 1:
A horizontal section through a tail light with a light guide,
FIG. 2:
FIG. 2 shows a horizontal section of the light guide element of the tail light of FIG. 1, FIG.
FIG. 3:
a horizontal section through a tail light with four light-guiding elements,
FIG. 4:
a vertical section through the tail light of Figure 3 and
FIG. 5:
a spatial representation of the light unit of Figure 3.

Ein Leuchte besteht im wesentlichen aus einem Gehäuse 1 und einem Lichtleitelement 2.A luminaire consists essentially of a housing 1 and a light guide 2.

Das Gehäuse 1 weist an seiner einer nicht dargestellten Fahrzeugkarosserie zugewandten Rückseite 3 ein Grundteil 4 auf. Auf seiner der Rückseite 3 abgewandten Vorderseite 5 ist dem Grundteil 4 eine lichtdurchlässige Lichtscheibe 6 vorgelagertThe housing 1 has a base 4 on its rear side 3 facing a vehicle body (not shown). On its front side 5 facing away from the back 3, the base part 4 is preceded by a translucent lens 6

Das Lichtleitelement 2 ist als ein langgestreckter Stab 7 ausgebildet, dessen quer zu seiner Längsachse 8 angeordnete erste Stirnfläche 9 und gegenüberliegende zweite Stirnfläche 10 als Lichteinkoppelflächen 11 ausgebildet sind. Dabei ist die erste Stirnfläche 9 an einem ersten Ende 12 und die zweite Stirnfläche 10 an einem zweiten Ende 13 des Lichtleitelementes 2 bzw. Stabes 7 angeordnet. An seiner dem Grundteil 4 zugewandten Unterseite 14 des Stabes 7 weist das Lichtleitelement 2 eine Reflexionsoptik 15 auf, die über die Lichteinkoppelflächen 11 eingekoppeltes Licht von den Lichteinkoppelflächen 11 vorgelagerten Leuchtdioden (LED's) 16 über eine Vielzahl von Reflektionsflächen reflektiert und quer zur Längsachse 8 über eine der Unterseite 14 gegenüberliegende Abstrahlfläche 17 des Stabes 7 in die der Vorderseite 5 des Gehäuses 1 zugewandte Abstrahlrichtung abstrahlt.The light-guiding element 2 is designed as an elongated rod 7, whose first end face 9 arranged transversely to its longitudinal axis 8 and opposite second end face 10 are designed as light-coupling surfaces 11. In this case, the first end face 9 is arranged at a first end 12 and the second end face 10 is arranged at a second end 13 of the light-guiding element 2 or bar 7. At his that Base 4 facing bottom 14 of the rod 7, the light guide 2 has a reflection lens 15, the light coupled via the light coupling surfaces 11 light from the light input surfaces 11 upstream LEDs (LED's) 16 over a plurality of reflective surfaces and transverse to the longitudinal axis 8 via one of the bottom 14th opposite radiating surface 17 of the rod 7 radiates in the front side 5 of the housing 1 facing emission direction.

Der ersten Stirnfläche 9 seitlich benachbart ist ein erstes Befestigungselement 18 und der zweiten Stirnfläche 10 seitlich benachbart ist ein zweites Befestigungselement 19 angeordnet. Das erste Befestigungselement 18 ist dabei als ein an der Unterseite 14 angeordneter Rasthaken 20 und das zweite Befestigungselement 19 als ein in Richtung der Längsachse 8 wirkendes Gegenlager 21 ausgebildet. Über entsprechende Aufnahmen 22, 23 des Grundteiles 4 ist das Lichtleitelement 2 über die Befestigungselemente 18, 19 mit mit dem Grundteil 4 verbindbar.A first fastening element 18 is laterally adjacent to the first end face 9 and a second fastening element 19 is arranged laterally adjacent to the second end face 10. In this case, the first fastening element 18 is designed as a latching hook 20 arranged on the underside 14 and the second fastening element 19 as an opposing bearing 21 acting in the direction of the longitudinal axis 8. About corresponding receptacles 22, 23 of the base 4, the light guide 2 via the fasteners 18, 19 connected to the base 4.

Das zweite Befestigungselement 19 geht seitlich zur benachbarten zweiten Stirnfläche versetzt in einen Stangenanguß 24 über, der nach dem Spritzen des Lichtleitelementes, also vor der Montage, auf die vorgesehene Länge des zweiten Befestigungselementes 19 abgetrennt wird.The second fastening element 19 is offset laterally to the adjacent second end face in a rod gate 24, which is separated after spraying the light-guiding element, ie before assembly, to the intended length of the second fastening element 19.

Die Montage des Lichtleitelementes 2 erfolgt durch ein einseitiges Einsetzen des zweiten Befestigungselementes 19 in die auf dem Grundteil 4 angeordnete zweite Aufnahme 23 und anschließendem Einschwenken zum Rastpunkt, wobei der Rasthaken 20 in die erste Aufnahme 22 des Grundteiles 4 einrastet. Nach Abdecken des Grundteiles 4 mit der Lichtscheibe 6 kann die Leuchte am vorgesehenen Einbauort festgeschraubt werden.The assembly of the light guide 2 is effected by a one-sided insertion of the second fastening element 19 in the arranged on the base part 4 second receptacle 23 and subsequent pivoting to the detent point, the latch hook 20 engages in the first receptacle 22 of the base 4. After covering the base 4 with the lens 6, the light can be screwed at the intended location.

Nach einer zweiten Ausführungsform weist ein Gehäuse 1' vier nebeneinander angeordnete Lichtleitelemente 2' auf, die über gemeinsame Befestigungselemente 18', 19' miteinander verbunden sind und eine Lichteinheit 25 bilden, die als ein Spritzling ausgebildet ist. Die Lichtleitelemente 2' sind in horizontaler Richtung äquidistant zur Lichtscheibe 6' bzw. zu deren gekrümmter Lichtscheibenkontur auf dem Grundteil 4' angeordnet. In vertikaler Richtung sind die Lichtleitelemente 2' gestuft versetzt auf dem Grundteil 4' angeordnet.According to a second embodiment, a housing 1 'on four adjacent light guide elements 2', which are connected to each other via common fastening elements 18 ', 19' and form a light unit 25 which is formed as a molded part. The light guide elements 2 'are in the horizontal direction Equidistant to the lens 6 'and arranged to the curved lens shape on the base 4'. In the vertical direction, the light guide elements 2 'staggered on the base 4' are arranged.

Die Befestigungselemente 18', 19' weisen eine integrierte Leiterplattenaufnahme 26 auf. Die Leiterplattenaufnahme 26 wird zu den benachbarten Stirnflächen 9', 10' hin jeweils von einer Innenwandung 27 begrenzt. In einem Abstand zur Innenwandung 27 ist eine parallel verlaufende Außenwandung 28 angeordnet. Innenwandung 27 und Außenwandung 28 sind über zwei einander gegenüberliegende Stirnwandungen 29 miteinander verbunden. Die Stirnwandungen 29 weisen Aufnahmenuten zur Aufnahme von Leiterplatten 30 auf. Auf den Leiterplatten 30 sind Leuchtdioden 31 angeordnet, die den jeweiligen benachbarten Stirnflächen 9', 10' vorgelagert sind und deren Licht in die Lichtleitelemente 2' eingekoppelt wird.The fastening elements 18 ', 19' have an integrated circuit board receptacle 26. The printed circuit board receptacle 26 is bounded in each case by an inner wall 27 towards the adjacent end faces 9 ', 10'. At a distance from the inner wall 27, a parallel outer wall 28 is arranged. Inner wall 27 and outer wall 28 are connected to each other via two opposite end walls 29. The end walls 29 have receiving grooves for receiving printed circuit boards 30. On the circuit boards 30 LEDs 31 are arranged, which are the respective adjacent end faces 9 ', 10' upstream and whose light is coupled into the light guide 2 '.

Zur Montage der Leuchte wird die Licheinheit 25 komplett mit Leiterplatten 30 und darauf angeordneten Leuchdioden 31 auf dem Grundteil 4' angeordnet und mit diesem durch Ultraschallschweißen verbunden.For mounting the lamp, the light unit 25 is arranged complete with printed circuit boards 30 and arranged thereon light emitting diodes 31 on the base 4 'and connected thereto by ultrasonic welding.

Claims (10)

  1. Vehicle lamp, more particularly a tailgate lamp, having at least one elongate light guide element (2) which features a first end face (9) on a first extremity (12) and a second end face (10) on a second extremity (13) which faces away from the first extremity, with at least one of the end faces (9, 10) being configured in the form of a light injecting surface (11), and having a base section (4) for a housing (1) onto which the light guide element is adapted to be affixed, characterised in that on its extremities (12, 13) the light guide element (2, 2') incorporates moulded fixing elements (18, 18', 19, 19') situated laterally adjacent to the end faces (9, 9', 10, 10').
  2. Lamp according to claim 1, characterised in that a first fixing element (18) is configured as a latching element (20) arranged on a lower face (14) of the light guide element (2), which lower face (14) incorporates a reflecting lens unit (15), and a second fixing element (19) situated opposite the first fixing element (18) is configured as a mating support (21), with the result that the light guide element (2) can be connected to the base section (4) in a manner that latches them together.
  3. Lamp according to claim 2, characterised in that the second fixing element (19) merges into a detachable stalk (24) which is laterally offset with respect to the adjacent end face (10).
  4. Lamp according to any one of claims 1 to 3, characterised in that a plurality of light guide elements (2') are arranged alongside one another on the base section (4').
  5. Lamp according to claim 4, characterised in that the light guide elements (2') are joined to one another via common fixing elements (18', 19') and constitute an optical unit (25) which is in the form of an injection moulded part.
  6. Lamp according to claim 5, characterised in that in the horizontal direction the light guide elements (2') run equidistantly from the lens contour of a lens plate (6') which is offset to the front in the direction of light emission.
  7. Lamp according to claim 6, characterised in that the light guide elements (2') are curved in the horizontal direction.
  8. Lamp according to any one of claims 4 to 7, characterised in that the light guide elements (2') have an offset stepped arrangement in the vertical direction.
  9. Lamp according to any one of claims 5 to 8, characterised in that the fixing elements (18', 19') incorporate an integrated circuit board locator (28) for direction positioning of light-emitting diodes (31) arranged on a circuit board (30).
  10. Lamp according to any one of claims 5 to 9, characterised in that the light guide elements (2') are adapted to be affixed to the base section (4') by ultrasonic welding.
EP00107830A 1999-04-28 2000-04-12 Vehicle lamp Expired - Lifetime EP1048893B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19919296 1999-04-28
DE19919296A DE19919296A1 (en) 1999-04-28 1999-04-28 Light for vehicles

Publications (3)

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EP1048893A2 EP1048893A2 (en) 2000-11-02
EP1048893A3 EP1048893A3 (en) 2002-04-24
EP1048893B1 true EP1048893B1 (en) 2006-05-17

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Application Number Title Priority Date Filing Date
EP00107830A Expired - Lifetime EP1048893B1 (en) 1999-04-28 2000-04-12 Vehicle lamp

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DE (2) DE19919296A1 (en)
ES (1) ES2262465T3 (en)

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FR2914731B1 (en) * 2007-04-06 2010-07-30 Valeo Vision LUMINOUS SIGNALING DEVICE WHICH MAY INDEPENDENTLY EMIT TWO SIGNALING BEAMS OF THE SAME INTENSITY AND DIFFERENT LUMINANCES
FR2942021B1 (en) * 2009-02-06 2012-08-17 Peugeot Citroen Automobiles Sa FIRE FOR VEHICLE WITH SPACER SYSTEM FOR LIGHT GUIDE
US8333493B2 (en) 2009-04-03 2012-12-18 North American Lighting, Inc. Dual-direction light pipe for automotive lighting
DE102009060790A1 (en) * 2009-12-22 2011-06-30 Automotive Lighting Reutlingen GmbH, 72762 Light module for a lighting device of a motor vehicle and lighting device of a motor vehicle with such a light module
FR2965040B1 (en) * 2010-09-20 2015-12-18 Peugeot Citroen Automobiles Sa LIGHT-GUIDING LIGHT DEVICE FOR A VEHICLE OPTICAL BLOCK, AND ASSOCIATED MASK AND HOUSING
FR2970319B1 (en) * 2011-01-10 2012-12-28 Peugeot Citroen Automobiles Sa LIGHT GUIDE LIGHT-GUIDING DEVICE WITH LIGHT-REFLECTING FIXATION, AND SUPPORT THEREFOR
DE102011051045B4 (en) 2011-06-14 2020-12-17 HELLA GmbH & Co. KGaA Light guide module and light for vehicles
JP6048749B2 (en) * 2013-04-24 2016-12-21 本田技研工業株式会社 Vehicle lighting system
JP5571828B2 (en) * 2013-06-24 2014-08-13 株式会社小糸製作所 Vehicle lighting
FR3044385B1 (en) * 2015-11-26 2020-10-02 Valeo Vision Belgique LIGHTING AND / OR SIGNALING DEVICE FOR MOTOR VEHICLES
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Also Published As

Publication number Publication date
DE50012749D1 (en) 2006-06-22
ES2262465T3 (en) 2006-12-01
DE19919296A1 (en) 2000-12-21
EP1048893A2 (en) 2000-11-02
EP1048893A3 (en) 2002-04-24

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