WO2010031743A1 - Headlamp for vehicles, and production method for diaphragm device - Google Patents

Headlamp for vehicles, and production method for diaphragm device Download PDF

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Publication number
WO2010031743A1
WO2010031743A1 PCT/EP2009/061863 EP2009061863W WO2010031743A1 WO 2010031743 A1 WO2010031743 A1 WO 2010031743A1 EP 2009061863 W EP2009061863 W EP 2009061863W WO 2010031743 A1 WO2010031743 A1 WO 2010031743A1
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WO
WIPO (PCT)
Prior art keywords
hollow body
reflector
elongated hollow
light distribution
diaphragm device
Prior art date
Application number
PCT/EP2009/061863
Other languages
German (de)
French (fr)
Inventor
Reinhold Brummel
Daniel Süsselbeck
Original Assignee
Hella Kgaa Hueck & Co.
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Filing date
Publication date
Application filed by Hella Kgaa Hueck & Co. filed Critical Hella Kgaa Hueck & Co.
Publication of WO2010031743A1 publication Critical patent/WO2010031743A1/en

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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
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/698—Shaft-shaped screens rotating along its longitudinal axis

Definitions

  • the invention relates to a headlamp for vehicles according to the preamble of patent claim 1.
  • the invention relates to a method for producing a diaphragm device for a headlight according to the preamble of patent claim 7.
  • a headlight for vehicles is known, which is designed as a projection headlight.
  • This has in addition to a light source and a reflector in the main emission direction of the reflector upstream lens and a diaphragm device, wherein by rotational position of the diaphragm device different light distributions, such as low beam distribution or high beam distribution can be generated.
  • a light-dark boundary of the light distribution is generated by means of an extending in the longitudinal direction of the diaphragm device glare edge.
  • the known diaphragm device may comprise an elongated hollow body, wherein the contouring of the hollow body is formed by generating an internal high pressure.
  • the production of the hollow body by high-pressure forming requires the application of a plate-shaped semifinished product with a Wirkmediendruck, which due to the slow pressure build-up and the sequential forming steps very high cycle times are needed. The production cost is therefore relatively high.
  • the object of the present invention is to specify a headlight for vehicles or a production method for a diaphragm device of the headlight such that the manufacturing outlay is reduced.
  • the particular advantage of the invention is that the production cost can be substantially reduced by the formation of an elongated hollow body of the diaphragm device as a bent part or deep-drawn part.
  • a plate-shaped semifinished product which may be formed as a sheet blank, provided and formed by Werstedumformen or by Biegeum- forms to an elongated hollow body having a number of extending in the longitudinal direction of the hollow body Blendkanten.
  • the blend edges can be made in the Werstedumformen or bending forming, so that a relatively rapid shaping of the aperture device is made possible.
  • a bearing element or a drive element is injection-molded on at least one end of the elongate hollow body, so that on the one hand a storage of the diaphragm device allows, for example, at the front edge region of the reflector and on the other hand, the stability of the tubular hollow body is improved.
  • the bearing element can also be positively connected to one end of the elongated hollow body.
  • the hollow body thus has a closed shape, which acts stabilizing.
  • the bearing element on a sliding surface, so that the bearing element has relatively good sliding properties, which favors a precise adjustment of the rotational position.
  • Fig. 1 is a perspective view of an elongated hollow body with end bearing elements
  • FIG. 3 shows a cross section through the elongate hollow body along the section line III-III in FIG. 2, FIG.
  • Fig. 5 is a front view of the elongated hollow body, wherein at one end a drive element is molded onto the bearing element.
  • a headlamp for vehicles is designed as a projection headlamp, which has a shell-shaped reflector, in whose first focal point a light source and in the second focal point of a lens is arranged. Between the lens and the reflector, a diaphragm device 1 is provided, which is rotatable by means of an actuating unit, not shown, about a horizontal and transverse to the optical axis of the light source axis of rotation D in different rotational positions.
  • the diaphragm device 1 has an elongate hollow body 2 with glare edges 3, 4 which are distributed in the direction of rotation and which extend in each case in the longitudinal direction of the hollow body 2.
  • FIG. 1 clearly shows a first blend edge 3 for producing a cut-off line for a low-beam light distribution and a blend edge 4 for generating a cut-off for a high-beam distribution by a widened line.
  • the blend edge 3 has a vertical section 3 '.
  • the blend edge for generating the low beam distribution 3 and / or a blend edge for generating a city light distribution and / or a blend edge for generating a Land Beaun- light distribution and / or a blend edge for generating a motorway light distribution be arranged.
  • the diaphragm device 1 thus enables the generation of a plurality of different light distributions.
  • each end openings of the hollow body 2 occluding bearing elements 7 and 8 are arranged, which allow storage of the hollow body 2 at a front edge region of the reflector, not shown.
  • the bearing elements 7, 8 each have a bearing pin T or 8 ', wherein the first bearing element 7 is connected via the bearing pin T with a drive element 9.
  • the drive element 9 may be part of a transmission, such as a gear, which is connected to a not shown E- lektromotor the actuator.
  • the bearing elements 7, 8 each have a bearing plate 10, 11 which extends perpendicular to the axis of rotation D and is connected by positive engagement or by injection with the front end 5, 6 of the hollow body 2. On a side facing away from the hollow body 2, the bearing pin T or 8 'adjoins in a central region of the bearing plate 10, 11.
  • the diaphragm device 1 is produced as follows:
  • a plate-shaped semifinished product for example a sheet metal blank, is provided. Then, the plate-shaped semi-finished product is formed by deep drawing or bending to the elongated hollow body 2, wherein at the same time the intended shutter edges 3, 4 are formed.
  • the hollow body 2 thus forms a bent part or a deep-drawn part.
  • Opposite longitudinal edges of the plate-shaped semifinished product, which preferably extend in the direction of the axis of rotation D, are then joined together by welding or gluing.
  • the bearing elements 7, 8 produced by injection molding at the front ends 5, 6 of the hollow body 2.
  • the drive element 9 molded become.
  • the drive element 9 is molded together with the first bearing element 7 at the same time to the first end of the hollow body 2.
  • the bearing element 7, 8 and / or the drive element 9 can be connected by positive engagement with the hollow body 2 or with the bearing element 7.
  • the joining of the longitudinal edges of the semifinished product can also take place after formation or connection of the bearing elements 7, 8 on the hollow body 2.

Abstract

The invention relates to a headlamp for vehicles, having a reflector which has two focal points, having a light source arranged at a first focal point of the reflector, having a lens positioned in front of the reflector in the main emission direction, the focal point of which lens is arranged in the vicinity of the second focal point of the reflector, and having a diaphragm device arranged between the lens and the reflector, which diaphragm device comprises an elongate hollow body, wherein the diaphragm device can be rotated by means of an actuating unit about a horizontal axis perpendicular to the optical axis into a plurality of rotational positions, and wherein the rotational positions are assigned in each case one diaphragm edge running in the longitudinal direction of the hollow body in order to produce a light-dark boundary for a predefined light distribution, wherein the elongate hollow body is formed as a bent part or as a deep-drawn part.

Description

SCHEINWERFER FUR FAHRZEUGE UND HERSTELLUNGSVERFAHREN FÜR BLENDENEINRICHTUNG HEADLIGHTS FOR VEHICLES AND MANUFACTURING METHOD FOR APERTURE EQUIPMENT
Beschreibungdescription
Die Erfindung betrifft einen Scheinwerfer für Fahrzeuge nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a headlamp for vehicles according to the preamble of patent claim 1.
Ferner betrifft die Erfindung ein Verfahren zur Herstellung einer Blendeneinrichtung für einen Scheinwerfer nach dem Oberbegriff des Patentanspruchs 7.Furthermore, the invention relates to a method for producing a diaphragm device for a headlight according to the preamble of patent claim 7.
Aus der DE 103 40 961 A1 ist ein Scheinwerfer für Fahrzeuge bekannt, der als ein Projektionsscheinwerfer ausgebildet ist. Dieser weist neben einer Lichtquelle und einem Reflektor eine in Hauptabstrahlrichtung dem Reflektor vorgelagerte Linse sowie eine Blendeneinrichtung auf, wobei durch Drehstellung der Blendeneinrichtung unterschiedliche Lichtverteilungen, wie Abblendlichtverteilung bzw. Fernlichtverteilung, erzeugbar sind. Eine Hell-Dunkel-Grenze der Lichtverteilung wird mittels einer in Längsrichtung der Blendeneinrichtung verlaufende Blendkante erzeugt. Die bekannte Blendeneinrichtung kann einen langgestreckten Hohlkörper umfassen, wobei die Konturie- rung des Hohlkörpers durch Erzeugen eines inneren Hochdrucks gebildet wird. Die Herstellung des Hohlkörpers durch Hochdruckumformen erfordert das Beaufschlagen eines plattenförmigen Halbzeugs mit einem Wirkmediendruck, wobei aufgrund des langsamen Druckaufbaus und der sequentiell ablaufenden Umformschritte sehr hohe Taktzeiten benötigt werden. Der Herstellungsaufwand ist damit relativ hoch.From DE 103 40 961 A1 discloses a headlight for vehicles is known, which is designed as a projection headlight. This has in addition to a light source and a reflector in the main emission direction of the reflector upstream lens and a diaphragm device, wherein by rotational position of the diaphragm device different light distributions, such as low beam distribution or high beam distribution can be generated. A light-dark boundary of the light distribution is generated by means of an extending in the longitudinal direction of the diaphragm device glare edge. The known diaphragm device may comprise an elongated hollow body, wherein the contouring of the hollow body is formed by generating an internal high pressure. The production of the hollow body by high-pressure forming requires the application of a plate-shaped semifinished product with a Wirkmediendruck, which due to the slow pressure build-up and the sequential forming steps very high cycle times are needed. The production cost is therefore relatively high.
Aufgabe der vorliegenden Erfindung ist es, einen Scheinwerfer für Fahrzeuge bzw. ein Herstellungsverfahren für eine Blendeneinrichtung des Scheinwerfers derart anzugeben, dass der Herstellungsaufwand verringert wird.The object of the present invention is to specify a headlight for vehicles or a production method for a diaphragm device of the headlight such that the manufacturing outlay is reduced.
Zur Lösung dieser Aufgabe weist die Erfindung die Merkmale des Patentanspruchs 1 bzw. des Patentanspruchs 7 auf. Der besondere Vorteil der Erfindung besteht darin, dass durch die Ausbildung eines langgestreckten Hohlkörpers der Blendeneinrichtung als Biegeteil oder Tiefziehteil der Herstellungsaufwand wesentlich reduziert werden kann. Zur Herstellung des langgestreckten Hohlkörpers wird ein plattenförmiges Halbzeug, das als Blechzuschnitt ausgebildet sein kann, bereitgestellt und durch Zugdruckumformen oder durch Biegeum- formen zu einem langgestreckten Hohlkörper umgeformt, der eine Anzahl von in Längsrichtung des Hohlkörpers verlaufende Blendkanten aufweist. Vorteilhaft können die Blendkanten beim Zugdruckumformen bzw. Biegeumformen hergestellt werden, so dass eine relativ schnelle Formgebung der Blendeneinrichtung ermöglicht wird.To solve this problem, the invention, the features of claim 1 and of claim 7. The particular advantage of the invention is that the production cost can be substantially reduced by the formation of an elongated hollow body of the diaphragm device as a bent part or deep-drawn part. To produce the elongated hollow body, a plate-shaped semifinished product, which may be formed as a sheet blank, provided and formed by Zugdruckumformen or by Biegeum- forms to an elongated hollow body having a number of extending in the longitudinal direction of the hollow body Blendkanten. Advantageously, the blend edges can be made in the Zugdruckumformen or bending forming, so that a relatively rapid shaping of the aperture device is made possible.
Nach einer bevorzugten Ausführungsform der Erfindung ist an mindestens einem Ende des langgestreckten Hohlkörpers ein Lagerelement bzw. ein Antriebselement angespritzt, so dass zum einen eine Lagerung der Blendeneinrichtung beispielsweise am vorderen Randbereich des Reflektors ermöglicht und zum anderen die Stabilität des rohrförmigen Hohlkörpers verbessert wird.According to a preferred embodiment of the invention, a bearing element or a drive element is injection-molded on at least one end of the elongate hollow body, so that on the one hand a storage of the diaphragm device allows, for example, at the front edge region of the reflector and on the other hand, the stability of the tubular hollow body is improved.
Nach einer Weiterbildung der Erfindung kann das Lagerelement auch formschlüssig mit einem Ende des langgestreckten Hohlkörpers verbunden sein. Der Hohlkörper weist somit eine geschlossene Form auf, die stabilisierend wirkt.According to a development of the invention, the bearing element can also be positively connected to one end of the elongated hollow body. The hollow body thus has a closed shape, which acts stabilizing.
Nach einer Weiterbildung der Erfindung weist das Lagerelement eine Gleitfläche auf, so dass das Lagerelement über relativ gute Gleiteigenschaften verfügt, die ein präzises Einstellen der Drehstellung begünstigt.According to a development of the invention, the bearing element on a sliding surface, so that the bearing element has relatively good sliding properties, which favors a precise adjustment of the rotational position.
Weitere Vorteile der Erfindung ergeben sich aus den weiteren Unteransprüchen.Further advantages of the invention will become apparent from the further subclaims.
Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnungen näher erläutert.An embodiment of the invention will be explained in more detail with reference to the drawings.
Es zeigen:Show it:
Fig. 1 eine perspektivische Darstellung eines langgestreckten Hohlkörpers mit endseitigen Lagerelementen,Fig. 1 is a perspective view of an elongated hollow body with end bearing elements,
Fig. 2 eine Vorderansicht des langgestreckten Hohlkörpers,2 is a front view of the elongated hollow body,
Fig. 3 einen Querschnitt durch den langgestreckten Hohlkörper entlang der Schnittlinie Ill-Ill in Figur 2,3 shows a cross section through the elongate hollow body along the section line III-III in FIG. 2, FIG.
Fig. 4 einen Querschnitt durch den langgestreckten Hohlkörper entlang der Schnittlinie IV-IV in Figur 2 und4 shows a cross section through the elongated hollow body along the section line IV-IV in Figure 2 and
Fig. 5 eine Vorderansicht des langgestreckten Hohlkörpers, wobei an einem Ende ein Antriebselement an das Lagerelement angespritzt ist.Fig. 5 is a front view of the elongated hollow body, wherein at one end a drive element is molded onto the bearing element.
Ein Scheinwerfer für Fahrzeuge ist als ein Projektionsscheinwerfer ausgebildet, der einen schalenförmigen Reflektor aufweist, in dessen ersten Brennort eine Lichtquelle sowie in dessen zweitem Brennort eine Linse angeordnet ist. Zwischen der Linse und dem Reflektor ist eine Blendeneinrichtung 1 vorgesehen, die mittels einer nicht dargestellten Stelleinheit um eine horizontale und quer zur optischen Achse der Lichtquelle verlaufende Drehachse D in unterschiedliche Drehstellungen verdrehbar ist.A headlamp for vehicles is designed as a projection headlamp, which has a shell-shaped reflector, in whose first focal point a light source and in the second focal point of a lens is arranged. Between the lens and the reflector, a diaphragm device 1 is provided, which is rotatable by means of an actuating unit, not shown, about a horizontal and transverse to the optical axis of the light source axis of rotation D in different rotational positions.
Die Blendeneinrichtung 1 weist einen langgestreckten Hohlkörper 2 mit in Drehrichtung verteilt angeordnete Blendkanten 3, 4 auf, die sich jeweils in Längsrichtung des Hohlkörpers 2 erstrecken. In Figur 1 sind eine erste Blendkante 3 zur Erzeugung einer Hell-Dunkel-Grenze für eine Abblendlichtverteilung und eine Blendkante 4 zur Erzeugung einer Hell-Dunkel-Grenze für eine Fernlichtverteilung durch eine verbreiterte Linie deutlich dargestellt. Die Blendkante 3 weist einen vertikalen Abschnitt 3' auf.The diaphragm device 1 has an elongate hollow body 2 with glare edges 3, 4 which are distributed in the direction of rotation and which extend in each case in the longitudinal direction of the hollow body 2. FIG. 1 clearly shows a first blend edge 3 for producing a cut-off line for a low-beam light distribution and a blend edge 4 for generating a cut-off for a high-beam distribution by a widened line. The blend edge 3 has a vertical section 3 '.
Nach einer nicht dargestellten Ausführungsform der Erfindung kann in einem spitzen oder rechten oder stumpfen Drehwinkelbereich W des Hohlkörpers 2 die Blendkante zur Erzeugung der Abblendlichtverteilung 3 und/oder eine Blendkante zur Erzeugung einer Stadtlichtverteilung und/oder eine Blendkante zur Erzeugung einer Landstraßen- lichtverteilung und/oder eine Blendkante zur Erzeugung einer Autobahnlichtverteilung angeordnet sein. Die Blendeneinrichtung 1 ermöglicht somit die Erzeugung einer Mehrzahl von unterschiedlichen Lichtverteilungen.According to an embodiment of the invention, not shown, in a pointed or right or obtuse rotational angle range W of the hollow body 2, the blend edge for generating the low beam distribution 3 and / or a blend edge for generating a city light distribution and / or a blend edge for generating a Landstraßen- light distribution and / or a blend edge for generating a motorway light distribution be arranged. The diaphragm device 1 thus enables the generation of a plurality of different light distributions.
An gegenüberliegenden stirnseitigen Enden 5, 6 des Hohlkörpers 2 sind jeweils Stirnöffnungen des Hohlkörpers 2 verschließende Lagerelemente 7 bzw. 8 angeordnet, die eine Lagerung des Hohlkörpers 2 an einem vorderen Randbereich des nicht dargestellten Reflektors ermöglichen. Die Lagerelemente 7, 8 weisen jeweils einen Lagerzapfen T bzw. 8' auf, wobei das erste Lagerelement 7 über den Lagerzapfen T mit einem Antriebselement 9 verbunden ist. Das Antriebselement 9 kann Bestandteil eines Getriebes, beispielsweise ein Zahnrad sein, das mit einem nicht dargestellten E- lektromotor der Stelleinheit verbunden ist.At opposite end faces 5, 6 of the hollow body 2 each end openings of the hollow body 2 occluding bearing elements 7 and 8 are arranged, which allow storage of the hollow body 2 at a front edge region of the reflector, not shown. The bearing elements 7, 8 each have a bearing pin T or 8 ', wherein the first bearing element 7 is connected via the bearing pin T with a drive element 9. The drive element 9 may be part of a transmission, such as a gear, which is connected to a not shown E- lektromotor the actuator.
Die Lagerelemente 7, 8 weisen jeweils einen Lagerteller 10, 11 auf, der sich senkrecht zur Drehachse D erstreckt und durch Formschluss oder durch Anspritzen mit dem stirnseitigen Ende 5, 6 des Hohlkörpers 2 verbunden ist. Auf einer dem Hohlkörper 2 abgewandten Seite schließt sich in einem zentralen Bereich des Lagertellers 10, 11 der Lagerzapfen T bzw. 8' an.The bearing elements 7, 8 each have a bearing plate 10, 11 which extends perpendicular to the axis of rotation D and is connected by positive engagement or by injection with the front end 5, 6 of the hollow body 2. On a side facing away from the hollow body 2, the bearing pin T or 8 'adjoins in a central region of the bearing plate 10, 11.
Die Blendeneinrichtung 1 wird folgendermaßen hergestellt:The diaphragm device 1 is produced as follows:
Es wird ein plattenförmiges Halbzeug, beispielsweise ein Blechzuschnitt, bereitgestellt. Dann wird das plattenförmige Halbzeug durch Tiefziehen oder Biegen zu dem langgestreckten Hohlkörper 2 umgeformt, wobei gleichzeitig die vorgesehenen Blendkanten 3, 4 ausgeformt werden. Der Hohlkörper 2 bildet somit ein Biegeteil bzw. ein Tiefziehteil. Gegenüberliegende längsseitige Ränder des plattenförmigen Halbzeugs, die sich vorzugsweise in Richtung der Drehachse D erstrecken, werden dann durch Schweißen oder Kleben fest miteinander verbunden.A plate-shaped semifinished product, for example a sheet metal blank, is provided. Then, the plate-shaped semi-finished product is formed by deep drawing or bending to the elongated hollow body 2, wherein at the same time the intended shutter edges 3, 4 are formed. The hollow body 2 thus forms a bent part or a deep-drawn part. Opposite longitudinal edges of the plate-shaped semifinished product, which preferably extend in the direction of the axis of rotation D, are then joined together by welding or gluing.
Dann werden nach einer ersten Variante der Erfindung die Lagerelemente 7, 8 durch Anspritzen an den stirnseitigen Enden 5, 6 des Hohlkörpers 2 hergestellt. Gegebenenfalls kann zusätzlich an dem ersten Lagerelement 7 das Antriebselement 9 angespritzt werden. Vorzugsweise wird das Antriebselement 9 zusammen mit dem ersten Lagerelement 7 gleichzeitig an das erste Ende des Hohlkörpers 2 angespritzt.Then, according to a first variant of the invention, the bearing elements 7, 8 produced by injection molding at the front ends 5, 6 of the hollow body 2. Optionally, in addition to the first bearing element 7, the drive element 9 molded become. Preferably, the drive element 9 is molded together with the first bearing element 7 at the same time to the first end of the hollow body 2.
Nach einer alternativen Variante der Erfindung kann das Lagerelement 7, 8 und/oder das Antriebselement 9 durch Formschluss mit dem Hohlkörper 2 bzw. mit dem Lagerelement 7 verbunden werden.According to an alternative variant of the invention, the bearing element 7, 8 and / or the drive element 9 can be connected by positive engagement with the hollow body 2 or with the bearing element 7.
Alternativ kann das Zusammenfügen der längsseitigen Ränder des Halbzeugs auch nach Anformung oder Anbindung der Lagerelemente 7, 8 an dem Hohlkörper 2 erfolgen. Alternatively, the joining of the longitudinal edges of the semifinished product can also take place after formation or connection of the bearing elements 7, 8 on the hollow body 2.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Blendeneinrichtung1 aperture device
2 Hohlkörper2 hollow bodies
3, 3' erste Blend kante3, 3 'first blend edge
4 zweite Blendkante4 second blend edge
5 Ende5 end
6 Ende6 end
7, 7' erstes Lagerelement / Zapfen7, 7 'first bearing element / pin
8, 8' zweites Lagerelement8, 8 'second bearing element
9 Antriebselement9 drive element
10 Lagerteller10 storage plates
11 Lagerteller11 storage plates
D DrehachseD rotation axis
W Drehwinkelbereich W rotation angle range

Claims

Scheinwerfer für Fahrzeuge und HerstellungsverfahrenPatentansprüche Headlamps for vehicles and manufacturing processesPatent claims
1. Scheinwerfer für Fahrzeuge mit einem zwei Brennorte aufweisenden Reflektor, mit einer in einem ersten Brennort des Reflektors angeordneten Lichtquelle, mit einer dem Reflektor in Hauptabstrahlrichtung vorgelagerten Linse, und mit einer zwischen der Linse und dem Reflektor angeordneten Blendeneinrichtung enthaltend einen langgestreckten Hohlkörper, wobei die Blendeneinrichtung mittels einer Stelleinheit um eine horizontale und quer zur optischen Achse verlaufenden Drehachse in mehrere Drehstellungen verdrehbar ist und wobei den Drehstellungen jeweils eine in Längsrichtung des Hohlkörpers verlaufende Blendkante zugeordnet ist zur Erstellung einer Hell-Dunkel-Grenze für eine vorgegebene Lichtverteilung, dadurch gekennzeichnet, dass der langgestreckte Hohlkörper (2) als ein Biegeteil oder als ein Tiefziehteil ausgebildet ist.1. A headlamp for vehicles with a reflector having two focal points, with a arranged in a first focal point of the reflector light source, with a reflector disposed in the main emission direction lens, and with an arranged between the lens and the reflector diaphragm device comprising an elongated hollow body, wherein the Aperture device by means of an adjusting unit about a horizontal and transverse to the optical axis axis of rotation in a plurality of rotational positions and wherein the rotational positions each associated with a running in the longitudinal direction of the hollow body glare is assigned to create a cut-off for a given light distribution, characterized in that the elongated hollow body (2) is designed as a bent part or as a deep-drawn part.
2. Scheinwerfer nach Anspruch 1 , dadurch gekennzeichnet, dass an mindestens einem stirnseitigen Ende (5, 6) des langgestreckten Hohlkörpers (2) ein Lagerelement (7, 8) und/oder ein Antriebselement (9) angespritzt ist.2. Headlight according to claim 1, characterized in that on at least one end face (5, 6) of the elongated hollow body (2) a bearing element (7, 8) and / or a drive element (9) is molded.
3. Scheinwerfer nach Anspruch 1 , dadurch gekennzeichnet, dass an mindestens einem stirnseitigen Ende (5,6) des Hohlkörpers (2) ein Lagerelement (7, 8) formschlüssig mit dem Ende (5,6) des Hohlkörpers (2) verbunden ist.3. Headlight according to claim 1, characterized in that at least one end face (5,6) of the hollow body (2) a bearing element (7, 8) is positively connected to the end (5,6) of the hollow body (2).
4. Scheinwerfer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Lagerelement (7, 8) eine Gleitfläche aufweist.4. Headlight according to one of claims 1 to 3, characterized in that the bearing element (7, 8) has a sliding surface.
5. Scheinwerfer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der langgestreckte Hohlkörper (2) aus einem Blechmaterial hergestellt ist. 5. Headlight according to one of claims 1 to 4, characterized in that the elongated hollow body (2) is made of a sheet metal material.
6. Scheinwerfer nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass sich in einem spitzen oder rechten oder stumpfen Drehwinkelbereich (W) des langgestreckten Hohlkörpers (2) eine Anzahl von Blendkanten (3, 4) zur Erzeugung einer Abblendlichtverteilung und/oder einer Stadtlichtverteilung und/oder einer Landstraßenlichtverteilung und/oder Autobahnlichtverteilung erstreckt.6. Headlight according to one of claims 1 to 5, characterized in that in a pointed or right or obtuse rotational angle range (W) of the elongated hollow body (2) has a number of Blendkanten (3, 4) for generating a low beam light distribution and / or a Urban light distribution and / or a highway light distribution and / or motorway light distribution extends.
7. Verfahren zur Herstellung einer Blendeneinrichtung für Scheinwerfer nach einem der Ansprüche 1 bis 6, wobei ein plattenförmiges Halbzeug zu einem langgestreckten Hohlkörper mit einer Anzahl von Blendkanten umgeformt wird, dadurch gekennzeichnet, dass das plattenförmige Halbzeug durch Tiefziehen oder durch Biegen zu dem langgestreckten Hohlkörper (2) umgeformt wird.7. A method for producing a shutter device for headlights according to one of claims 1 to 6, wherein a plate-shaped semi-finished product is formed into an elongated hollow body with a number of Blendkanten, characterized in that the plate-shaped semi-finished by deep drawing or by bending to the elongated hollow body ( 2) is transformed.
8. Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass an mindestens einem Ende (5, 6) des langgestreckten Hohlkörpers (2) ein Lagerelement (7, 8) und/oder ein Antriebselement (9) angespritzt wird.8. The method according to claim 7, characterized in that at least one end (5, 6) of the elongated hollow body (2) a bearing element (7, 8) and / or a drive element (9) is molded.
9. Verfahren nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass das plattenförmige Halbzeug zugeschnitten wird und dass nach dem Umformen des plattenförmigen Halbzeugs längsseitige Ränder desselben fest miteinander verbunden werden.9. The method according to claim 7 or 8, characterized in that the plate-shaped semifinished product is cut to size and that after the forming of the plate-shaped semifinished product longitudinal edges thereof are firmly connected to each other.
10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass die längsseitigen Ränder des Halbzeugs durch Schweißen oder durch Kleben fest miteinander verbunden werden. 10. The method according to claim 9, characterized in that the longitudinal edges of the semifinished product are joined together by welding or by gluing.
PCT/EP2009/061863 2008-09-16 2009-09-14 Headlamp for vehicles, and production method for diaphragm device WO2010031743A1 (en)

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EP2418121A3 (en) * 2010-08-09 2017-09-13 Koito Manufacturing Co., Ltd. Vehicular headlamp

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