EP1052446A2 - Vehicle headlamp - Google Patents

Vehicle headlamp Download PDF

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Publication number
EP1052446A2
EP1052446A2 EP00109699A EP00109699A EP1052446A2 EP 1052446 A2 EP1052446 A2 EP 1052446A2 EP 00109699 A EP00109699 A EP 00109699A EP 00109699 A EP00109699 A EP 00109699A EP 1052446 A2 EP1052446 A2 EP 1052446A2
Authority
EP
European Patent Office
Prior art keywords
shaft
diaphragm shaft
reflector
drive means
headlight according
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.)
Granted
Application number
EP00109699A
Other languages
German (de)
French (fr)
Other versions
EP1052446A3 (en
EP1052446B1 (en
Inventor
Reinhold Brummel
Gerhard Priesnitz
Christian Schmidt
Ulrich Witt
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 EP1052446A2 publication Critical patent/EP1052446A2/en
Publication of EP1052446A3 publication Critical patent/EP1052446A3/en
Application granted granted Critical
Publication of EP1052446B1 publication Critical patent/EP1052446B1/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
    • 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
    • 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
    • F21S41/50—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
    • F21S41/55—Attachment thereof

Definitions

  • the invention relates to headlights for vehicles with a cup-shaped Reflector, with a light source assigned to the reflector, with a between a lens and the reflector arranged aperture shaft, with one with the Aperture shaft coupled drive means through which the aperture shaft by one horizontal and perpendicular to the optical axis of rotation in several Rotational positions is adjustable, and with one the aperture shaft and that Holder carrying drive means.
  • Such a headlight for vehicles is known from DE 43 35 286 A1.
  • On Light module of the headlight has an ellipsoidal reflector, one in the Beam path of the reflector and a lens arranged between the reflector and Lens inserted lens.
  • the outer surface of the diaphragm shaft points for each rotational position of the diaphragm shaft on an aperture line, which a Light-dark boundary generated by a light figure.
  • the aperture wave runs between two legs of a U-shaped holder and engages in bearing openings of the legs on.
  • a drive means of the diaphragm shaft has an electric motor and Gearbox, which couples the aperture shaft with the gearbox.
  • the engine is attached to the outside of one leg of the U-shaped holder and leads with it Drive shaft through an opening of the leg of the holder. This through the opening protruding end of the diaphragm shaft is via the gearbox with the Aperture shaft coupled.
  • the gearbox consists of two gears, one of which one sits on the aperture shaft and the other sits on the drive shaft of the engine. It is disadvantageous here that the holder is composed of several parts and light rays of the light source reflected by the reflector through the Can pass through the U-shaped holder and dazzle oncoming traffic.
  • the object of the invention is to design the headlights for vehicles described in the preamble of claim 1 such that the light rays of the light source are shielded below the aperture shaft and the holder consists of as few parts as possible.
  • This object is achieved according to the invention in that a shader arranged below the diaphragm shaft is the holder for the diaphragm shaft and the drive means, the diaphragm shaft being arranged with a section in an upwardly open receiving groove of the shader and the shading device on the side of its receiving groove being a receiving element for the drive means.
  • the shading device and the diaphragm shaft together shield light rays from the light source assigned to the reflector, and the shading device is stiffened by the receiving channel.
  • the shader is heat-resistant if it consists of a cast metal alloy. In addition, it guides the inside of the headlight over the receiving element or a light module of the headlamp from the heat generated to the outside.
  • the aperture shaft and the shader are also lightproof together if the receiving channel is caused by a irregular shape of the diaphragm shaft a greater distance from the diaphragm shaft having.
  • the shader has a high one in the area holding the diaphragm shaft Stiffness when the receiving channel is limited in its length by side walls is introduced into the bearing openings for the diaphragm shaft.
  • a smooth one Swiveling of the diaphragm shaft is guaranteed when in the bearing openings respectively a sliding sleeve is used for the journal of the diaphragm shaft.
  • the receiving element for the drive means forms together with the shader a stable unit if the receiving element is connected to a side wall through the Side walls stiffened receiving channel is attached.
  • the drive means is arranged on the headlamp to save space if that Receiving element in its main dimension transverse to the axis of rotation of the Aperture shaft runs and points towards the back of the headlight, with a Electric motor of the drive means on the side of the reflector facing Receiving element is arranged and the electric motor via a gearbox Drive means is coupled to the aperture shaft.
  • the electric motor builds not on the side, since it is adjacent to the back of the headlight tapered reflector is arranged.
  • the gear is arranged protected when the receiving element is a housing part for the transmission. This prevents objects such as Example electrical cables that can get between the gear wheels of the transmission and thus blocking the function of the electric drive.
  • the housing part can be completed by a removable housing cover.
  • the shader forms one together with its receiving channel torsionally stiff holder when the shader angled edge sections having.
  • the invention is on the inside the receiving channel attached at least one stop for the diaphragm shaft.
  • the Stop is used to adjust the aperture shaft and can be made in one piece with the Shadows are executed.
  • a shader with two stops can also other headlight variants with different aperture shafts are used become.
  • the headlight for vehicles has a light module, which is not in a shown headlight housing can be used.
  • the light module is in the Headlight housing pivoted about at least one axis and is used for Generation of different dimmed light beams.
  • the light module has an ellipsoidal reflector 1, in the latter Apex region an opening for receiving a light source 2 is introduced.
  • the light source can be an incandescent lamp or a gas discharge lamp.
  • To the front edge of the reflector 1 is attached to a frame 18 made of sheet metal.
  • the frame 18 accommodates a lens 3 in a central opening
  • a shader 8 is arranged below an optical axis 6 of the reflector 1.
  • the shader 8 runs with a plate-shaped section vertically and transversely optical axis 6.
  • the plate-shaped section of the shader 8 is with its outer edge, which has angled edge portions 17 towards the lens 3 attached to the front edge of the reflector 1. Above the plate-shaped Section, the shader 8 has a receiving groove 9 for the diaphragm shaft 4.
  • the receiving channel 4 extends from the plate-shaped section on the side of the diaphragm shaft 4 facing the lens 3.
  • the receiving groove 9 extends with its upper edge to the optical axis 6 of the reflector 1 and surrounds the aperture shaft 4 at a distance.
  • the receiving channel 9 points to both Ends formed on side walls 11, in which bearing openings 12 for Bearing journals 20 of the aperture shaft 4 are introduced.
  • bearing openings 12 are Sliding sleeves 19 used.
  • the aperture shaft 4 points for at least two Rotational positions another aperture line, which to generate a The light-dark boundary of a dimmed light beam is used.
  • To one of the two Side walls 11 of the receiving channel 9 is a receiving element 10 for an outside Drive means 5 integrally formed.
  • the receiving element 10 is plate-shaped and runs transversely to the axis of rotation 7 of the diaphragm shaft 4. Through an opening of the Receiving element 10 projects through one of the journals 20 of the diaphragm shaft 4.
  • the bearing pin 20 engages in an opening of a large gear of a transmission 14 a.
  • the large gear meshes with its teeth in the teeth of a small one Gear of the transmission 14. Both gears lie with their large ones Side surfaces on the plate-shaped receiving element 10.
  • the gears of the Gear 14 are in a laterally open housing of the receiving element 10 arranged.
  • the receiving element 10 extends to the rear of the Headlights out and carries on the bowl-shaped reflector 1 Side an electric motor 13 of the drive means 5.
  • the motor 13 is over his Drive shaft connected to the small gear of the transmission 14.
  • On one of the Both side walls 11 of the receiving channel 9 is above the aperture shaft 4 stop 16 for adjustment and calibration of the diaphragm shaft appropriate.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The head lamp has a shell-shaped reflector (1), a light source (2) associated with the reflector, an aperture shaft (4) betw a lens and the reflector, a drive mechanism coupled to the aperture shaft to move the shaft into various angle settings and a hold for the aperture shaft and drive mechanism. A screen (8) mounted beneath the shaft forms the holder, whereby the shaft is mounte with one section in an upwardly open bearer channel (9) of the screen, which has a holding element (10) for the drive mechanism.

Description

Die Erfindung bezieht Scheinwerfer für Fahrzeuge mit einem schalenförmigen Reflektor, mit einer dem Reflektor zugeordneten Lichtquelle, mit einer zwischen einer Linse und dem Reflektor angeordneten Blendenwelle, mit einem mit der Blendenwelle gekoppelten Antriebsmittel, durch welche die Blendenwelle um eine horizontale und quer zur optischen Achse verlaufende Drehachse in mehrere Drehstellungen verstellbar ist, und mit einem die Blendenwelle und das Antriebsmittel tragenden Halter.The invention relates to headlights for vehicles with a cup-shaped Reflector, with a light source assigned to the reflector, with a between a lens and the reflector arranged aperture shaft, with one with the Aperture shaft coupled drive means through which the aperture shaft by one horizontal and perpendicular to the optical axis of rotation in several Rotational positions is adjustable, and with one the aperture shaft and that Holder carrying drive means.

Ein solcher Scheinwerfer für Fahrzeuge ist aus der DE 43 35 286 A1 bekannt. Ein Lichtmodul des Scheinwerfers weist einen ellipsoidförmigen Reflektor, eine in dem Strahlengang des Reflektors angeordnete Linse und eine zwischen Reflektor und Linse eingesetzte Blendenwelle auf. Die Mantelfläche der Blendenwelle weist für jede Drehstellung der Blendenwelle eine Blendenlinie auf, welche eine Hell-Dunkel-Grenze einer Lichtfigur erzeugt. Die Blendenwelle verläuft zwischen zwei Schenkeln eines U-förmigen Halters und greift in Lageröffnungen der Schenkel ein. Ein Antriebsmittel der Blendenwelle weist einen elektrischen Motor und ein Getriebe auf, welches die Blendenwelle mit dem Getriebe koppelt. Der Motor ist außen an einem Schenkel des U-förmigen Halters angebracht und führt mit seiner Antriebswelle durch eine Öffnung des Schenkels des Halters hindurch. Dieses durch die Öffnung hindurchragende Ende der Blendenwelle ist über das Getriebe mit der Blendenwelle gekoppelt. Das Getriebe besteht aus zwei Zahnrädern, von denen eines auf der Blendenwelle und das andere auf der Antriebswelle des Motors sitzt. Hierbei ist es nachteilig, daß der Halter aus mehreren Teilen zusammengesetzt ist und von dem Reflektor reflektierte Lichtstrahlen der Lichtquelle durch den U-förmigen Halter hindurchtreten und den Gegenverkehr blenden können. Such a headlight for vehicles is known from DE 43 35 286 A1. On Light module of the headlight has an ellipsoidal reflector, one in the Beam path of the reflector and a lens arranged between the reflector and Lens inserted lens. The outer surface of the diaphragm shaft points for each rotational position of the diaphragm shaft on an aperture line, which a Light-dark boundary generated by a light figure. The aperture wave runs between two legs of a U-shaped holder and engages in bearing openings of the legs on. A drive means of the diaphragm shaft has an electric motor and Gearbox, which couples the aperture shaft with the gearbox. The engine is attached to the outside of one leg of the U-shaped holder and leads with it Drive shaft through an opening of the leg of the holder. This through the opening protruding end of the diaphragm shaft is via the gearbox with the Aperture shaft coupled. The gearbox consists of two gears, one of which one sits on the aperture shaft and the other sits on the drive shaft of the engine. It is disadvantageous here that the holder is composed of several parts and light rays of the light source reflected by the reflector through the Can pass through the U-shaped holder and dazzle oncoming traffic.

Aufgabe der Erfindung ist es, den im Oberbegriff des Anspruchs 1 beschriebenen Scheinwerfer für Fahrzeuge derart zu gestalten, daß die Lichtstrahlen der Lichtquelle unterhalb der Blendenwelle abgeschirmt sind und der Halter aus möglichst wenigen Teilen besteht. Diese Aufgabe wird nach der Erfindung dadurch gelöst, daß ein unterhalb der Blendenwelle angeordneter Abschatter der Halter für die Blendenwelle und das Antriebsmittel ist, wobei die Blendenwelle mit einem Abschnitt in einer nach oben geöffneten Aufnahmerinne des Abschatters angeordnet ist und der Abschatter seitlich seiner Aufnahmerinne ein Aufnahmeelement für das Antriebsmittel aufweist.
Hierbei schirmen der Abschatter und die Blendenwelle zusammen Lichtstrahlen der dem Reflektor zugeordneten Lichtqelle ab, und der Abschatter ist durch die Aufnahmerinne versteift.The object of the invention is to design the headlights for vehicles described in the preamble of claim 1 such that the light rays of the light source are shielded below the aperture shaft and the holder consists of as few parts as possible. This object is achieved according to the invention in that a shader arranged below the diaphragm shaft is the holder for the diaphragm shaft and the drive means, the diaphragm shaft being arranged with a section in an upwardly open receiving groove of the shader and the shading device on the side of its receiving groove being a receiving element for the drive means.
Here, the shading device and the diaphragm shaft together shield light rays from the light source assigned to the reflector, and the shading device is stiffened by the receiving channel.

Zwischen dem Antriebsmittel und der Blendenwelle bestehen nur sehr kleine Toleranzen, wenn der die Aufnahmerinne für die Blendenwelle aufweisende Abschatter und zumindest ein Teil des Aufnahmeelements einstückig ausgeführt sind. Dadurch ist die Funktion des Scheinwerfers sicher. Der Abschatter ist wärmebeständig, wenn er aus einer gegossenen Metall-Legierung besteht. Außerdem führt er über das Aufnahmeelement die im Inneren des Scheinwerfers bzw. eines Lichtmoduls des Scheinwerfers entstehende Wärme nach außen ab.There are only very small ones between the drive means and the diaphragm shaft Tolerances if the one that has the receiving channel for the diaphragm shaft Shadows and at least part of the receiving element made in one piece are. This ensures that the headlights function correctly. The shader is heat-resistant if it consists of a cast metal alloy. In addition, it guides the inside of the headlight over the receiving element or a light module of the headlamp from the heat generated to the outside.

Zwischen der Blendenwelle und dem Abschatter können keine Lichtstrahlen der Lichtquelle hindurchtreten, wenn die Aufnahmerinne sich zwischen Blendenwelle und Reflektor oder Blendenwelle und Linse erstreckt und ein oberer Rand der Aufnahmerinne im Bereich einer horizontalen Ebene angeordnet ist, in der die Drehachse der Blendenwelle verläuft. Die Blendenwelle und der Abschatter sind auch dann zusammen lichtdicht, wenn die Aufnahmerinne bedingt durch eine unregelmäßige Form der Blendenwelle einen größeren Abstand zur Blendenwelle aufweist.No light rays can between the aperture shaft and the shading Pass the light source through if the receiving channel is between the diaphragm shaft and reflector or aperture shaft and lens extends and an upper edge of the Receiving groove is arranged in the area of a horizontal plane in which the The axis of rotation of the diaphragm shaft runs. The aperture shaft and the shader are also lightproof together if the receiving channel is caused by a irregular shape of the diaphragm shaft a greater distance from the diaphragm shaft having.

Der Abschatter weist in dem die Blendenwelle halternden Bereich eine hohe Steifigkeit auf, wenn die Aufnahmerinne in ihrer Länge durch Seitenwände begrenzt ist, in die Lageröffnungen für die Blendenwelle eingebracht sind. Ein leichtgängiges Schwenken der Blendenwelle ist gewährleistet, wenn in die Lageröffnungen jeweils eine Gleithülse für Lagerzapfen der Blendenwelle eingesetzt sind.The shader has a high one in the area holding the diaphragm shaft Stiffness when the receiving channel is limited in its length by side walls is introduced into the bearing openings for the diaphragm shaft. A smooth one Swiveling of the diaphragm shaft is guaranteed when in the bearing openings respectively a sliding sleeve is used for the journal of the diaphragm shaft.

Das Aufnahmeelement für das Antriebsmittel bildet zusammen mit dem Abschatter eine stabile Einheit, wenn das Aufnahmeelement an eine Seitenwand der durch die Seitenwände versteiften Aufnahmerinne angebracht ist.The receiving element for the drive means forms together with the shader a stable unit if the receiving element is connected to a side wall through the Side walls stiffened receiving channel is attached.

Das Antriebsmittel ist platzsparend am Scheinwerfer angeordnet, wenn das Aufnahmeelement in seiner Hauptausdehnung quer zur Drehachse der Blendenwelle verläuft und zur Rückseite des Scheinwerfers hin weist, wobei ein elektrischer Motor des Antriebsmittels auf der dem Reflektor zugewandten Seite des Aufnahmeelements angeordnet ist und der elektrische Motor über ein Getriebe des Antriebmittels mit der Blendenwelle gekoppelt ist. Hierbei baut der elektrische Motor seitlich nicht auf, da er benachbart zu dem zur Rückseite des Scheinwerfers sich verjüngenden Reflektor angeordnet ist.The drive means is arranged on the headlamp to save space if that Receiving element in its main dimension transverse to the axis of rotation of the Aperture shaft runs and points towards the back of the headlight, with a Electric motor of the drive means on the side of the reflector facing Receiving element is arranged and the electric motor via a gearbox Drive means is coupled to the aperture shaft. Here the electric motor builds not on the side, since it is adjacent to the back of the headlight tapered reflector is arranged.

Das Getriebe ist geschützt angeordnet, wenn das Aufnahmeelement ein Gehäuseteil für das Getriebe aufweist. Dadurch wird verhindert, daß Gegenstände, wie zum Beispiel elektrische Kabel, zwischen Zahnräder des Getriebes gelangen können und somit die Funktion des elektrischen Antriebs blockieren. Das Gehäuseteil kann durch einen abnehmbaren Gehäusedeckel abgeschlossen sein.The gear is arranged protected when the receiving element is a housing part for the transmission. This prevents objects such as Example electrical cables that can get between the gear wheels of the transmission and thus blocking the function of the electric drive. The housing part can be completed by a removable housing cover.

Der Abschatter bildet zusammen mit seiner Aufnahmerinne einen verwindungssteifen Halter, wenn der Abschatter abgewinkelte Randabschnitte aufweist.The shader forms one together with its receiving channel torsionally stiff holder when the shader angled edge sections having.

Bei einer besonders vorteilhaften Weiterbildung der Erfindung ist an der Innenseite der Aufnahmerinne mindestens ein Anschlag für die Blendenwelle angebracht. Der Anschlag dient zur Justage der Blendenwelle und kann einstückig mit dem Abschatter ausgeführt sein. Ein Abschatter mit zwei Anschlägen kann auch bei anderen Scheinwerfervarianten mit unterschiedlichen Blendenwellen verwendet werden.In a particularly advantageous development of the invention is on the inside the receiving channel attached at least one stop for the diaphragm shaft. The Stop is used to adjust the aperture shaft and can be made in one piece with the Shadows are executed. A shader with two stops can also other headlight variants with different aperture shafts are used become.

Ein Ausführungsbeispiel nach der Erfindung ist in der Zeichnung dargestellt, und zwar zeigen

Figur 1
in einer perspektivischen Ansicht ein Lichtmodul eines Scheinwerfers für Fahrzeuge mit einem Abschatter und einer Blendenwelle, welche zwischen einer Linse und einem Reflektor angeordnet sind,
Figur 2
in einer anderen perspektivischen Ansicht das Lichtmodul von Figur 1 mit einem seitlich des Reflektors angeordneten Antriebsmittel für die Blendenwelle,
Figur 3
in einer Vorderansicht, entgegen der Lichtaustrittsrichtung gesehen, den Abschatter mit der Blendenwelle und dem Antriebsmittel,
Figur 4
eine Draufsicht auf den Abschatter von Figur 3 und
Figur 5
in einer perspektivischen Ansicht den Abschatter von Figur 3 und 4 ohne Blendenwelle und Antriebsmittel.
An embodiment of the invention is shown in the drawing, namely show
Figure 1
a perspective view of a light module of a headlight for vehicles with a shading device and an aperture shaft, which are arranged between a lens and a reflector,
Figure 2
1 shows another perspective view of the light module from FIG. 1 with a drive means for the diaphragm shaft arranged on the side of the reflector,
Figure 3
in a front view, seen against the light exit direction, the shading device with the diaphragm shaft and the drive means,
Figure 4
a plan view of the shader of Figure 3 and
Figure 5
3 and 4 in a perspective view without the shutter shaft and drive means.

Der Scheinwerfer für Fahrzeuge weist ein Lichtmodul auf, welches in ein nicht dargestelltes Scheinwerfergehäuse einsetzbar ist. Das Lichtmodul ist in dem Scheinwerfergehäuse um mindestens eine Achse schwenkbar gelagert und dient zur Erzeugung von unterschiedlichen abgeblendeten Lichtbündeln.The headlight for vehicles has a light module, which is not in a shown headlight housing can be used. The light module is in the Headlight housing pivoted about at least one axis and is used for Generation of different dimmed light beams.

Das Lichtmodul weist einen ellipsoidförmigen Reflektor 1 auf, in dessem Scheitelbereich eine Öffnung zur Aufnahme einer Lichtquelle 2 eingebracht ist. Als Lichtquelle kann eine Glühlampe oder eine Gasentladungslampe dienen. An dem vorderen Rand des Reflektors 1 ist ein aus Blech bestehendes Gestell 18 befestigt. Das Gestell 18 nimmt in einer zentralen Öffnung eine Linse 3 auf Weiterhin ist unterhalb einer optischen Achse 6 des Reflektors 1 ein Abschatter 8 angeordnet. Der Abschatter 8 verläuft mit einem plattenförmigen Abschnitt vertikal und quer zur optischen Achse 6. Der plattenförmige Abschnitt des Abschatters 8 ist mit seinem äußeren Rand, welcher zur Linse 3 hin abgewinkelte Randabschnitte 17 aufweist, an dem vorderen Rand des Reflektors 1 befestigt. Oberhalb des plattenförmigen Abschnitts weist der Abschatter 8 eine Aufnahmerinne 9 für die Blendenwelle 4 auf. Die Aufnahmerinne 4 erstreckt sich ausgehend von dem plattenförmigen Abschnitt auf dem der Linse 3 zugewandten Seite der Blendenwelle 4. Die Aufnahmerinne 9 erstreckt sich mit ihrem oberen Rand bis zur optischen Achse 6 des Reflektors 1 und umgibt die Blendenwelle 4 beabstandet. Die Aufnahmerinne 9 weist an beiden Enden angeformte Seitenwände 11 auf, in welche Lageröffnungen 12 für Lagerzapfen 20 der Blendenwelle 4 eingebracht sind. In die Lageröffnungen 12 sind Gleithülsen 19 eingesetzt. Die Blendenwelle 4 weist für mindestens zwei Drehstellungen eine andere Blendenlinie auf, welche zur Erzeugung einer Hell-Dunkel-Grenze eines abgeblendeten Lichtbündels dient. An eine der beiden Seitenwände 11 der Aufnahmerinne 9 ist außen ein Aufnahmeelement 10 für ein Antriebsmittel 5 angeformt. Das Aufnahmeelement 10 ist plattenförmig ausgeführt und verläuft quer zur Drehachse 7 der Blendenwelle 4. Durch eine Öffnung des Aufnahmeelementes 10 ragt einer der Lagerzapfen 20 der Blendenwelle 4 hindurch. Der Lagerzapfen 20 greift in eine Öffnung eines großen Zahnrades eines Getriebes 14 ein. Das große Zahnrad kämmt mit seinen Zähnen in den Zähnen eines kleinen Zahnrades des Getriebes 14. Beide Zahnräder liegen mit ihren großen Seitenflächen an dem plattenförmigen Aufnahmeelement 10 an. Die Zahnräder des Getriebes 14 sind in einem seitlich geöffneten Gehäuse des Aufnahmeelementes 10 angeordnet. Das Aufnahmeelement 10 erstreckt sich zur Rückseite des Scheinwerfers hin und trägt auf der dem schalenförmigen Reflektor 1 zugewandten Seite einen elektrischen Motor 13 des Antriebsmittels 5. Der Motor 13 ist über seine Antriebswelle mit dem kleinen Zahnrad des Getriebes 14 verbunden. An einer der beiden Seitenwände 11 der Aufnahmerinne 9 ist oberhalb der Blendenwelle 4 ein zur Justage und zur Kalibrierung der Blendenwelle dienender Anschlag 16 angebracht. The light module has an ellipsoidal reflector 1, in the latter Apex region an opening for receiving a light source 2 is introduced. As The light source can be an incandescent lamp or a gas discharge lamp. To the the front edge of the reflector 1 is attached to a frame 18 made of sheet metal. The frame 18 accommodates a lens 3 in a central opening A shader 8 is arranged below an optical axis 6 of the reflector 1. The shader 8 runs with a plate-shaped section vertically and transversely optical axis 6. The plate-shaped section of the shader 8 is with its outer edge, which has angled edge portions 17 towards the lens 3 attached to the front edge of the reflector 1. Above the plate-shaped Section, the shader 8 has a receiving groove 9 for the diaphragm shaft 4. The receiving channel 4 extends from the plate-shaped section on the side of the diaphragm shaft 4 facing the lens 3. The receiving groove 9 extends with its upper edge to the optical axis 6 of the reflector 1 and surrounds the aperture shaft 4 at a distance. The receiving channel 9 points to both Ends formed on side walls 11, in which bearing openings 12 for Bearing journals 20 of the aperture shaft 4 are introduced. In the bearing openings 12 are Sliding sleeves 19 used. The aperture shaft 4 points for at least two Rotational positions another aperture line, which to generate a The light-dark boundary of a dimmed light beam is used. To one of the two Side walls 11 of the receiving channel 9 is a receiving element 10 for an outside Drive means 5 integrally formed. The receiving element 10 is plate-shaped and runs transversely to the axis of rotation 7 of the diaphragm shaft 4. Through an opening of the Receiving element 10 projects through one of the journals 20 of the diaphragm shaft 4. The bearing pin 20 engages in an opening of a large gear of a transmission 14 a. The large gear meshes with its teeth in the teeth of a small one Gear of the transmission 14. Both gears lie with their large ones Side surfaces on the plate-shaped receiving element 10. The gears of the Gear 14 are in a laterally open housing of the receiving element 10 arranged. The receiving element 10 extends to the rear of the Headlights out and carries on the bowl-shaped reflector 1 Side an electric motor 13 of the drive means 5. The motor 13 is over his Drive shaft connected to the small gear of the transmission 14. On one of the Both side walls 11 of the receiving channel 9 is above the aperture shaft 4 stop 16 for adjustment and calibration of the diaphragm shaft appropriate.

BezugszeichenlisteReference list

1.1.
Reflektorreflector
2.2nd
LichtquelleLight source
3.3rd
Linselens
4.4th
BlendenwelleAperture shaft
5.5.
AntriebsmittelDrive means
6.6.
optische Achseoptical axis
7.7.
DrehachseAxis of rotation
8.8th.
AbschatterShadows
9.9.
AufnahmerinneReceiving channel
10.10th
AufnahmeelementReceiving element
11.11.
Seitenwändeside walls
12.12th
LageröffnungenWarehouse openings
13.13.
elektrischer Motorelectric motor
14.14.
Getriebetransmission
15.15.
oberer Randupper edge
16.16.
Anschlagattack
17.17th
RandabschnitteEdge sections
18.18th
Gestellframe
19.19th
GleithülsenSliding sleeves
20.20th
LagerzapfenBearing journal

Claims (10)

Scheinwerfer für Fahrzeuge mit einem schalenförmigen Reflektor (1), mit einer dem Reflektor (1) zugeordneten Lichtquelle (2), mit einer zwischen einer Linse (3) und dem Reflektor (1) angeordneten Blendenwelle (4), mit einem mit der Blendenwelle (4) gekoppelten Antriebsmittel (5), durch welche die Blendenwelle (4) um eine horizontale und quer zur optischen Achse (6) verlaufende Drehachse (7) in mehrere Drehstellungen verstellbar ist, und mit einem die Blendenwelle (4) und das Antriebsmittel (5) tragenden Halter, dadurch gekennzeichnet, daß ein unterhalb der Blendenwelle (4) angeordneter Abschatter (8) der Halter für die Blendenwelle (4) und das Antriebsmittel (5) ist, wobei die Blendenwelle (4) mit einem Abschnitt in einer nach oben geöffneten Aufnahmerinne (9) des Abschatters (8) angeordnet ist und der Abschatter (8) seitlich seiner Aufnahmerinne (9) ein Aufnahmeelement (10) für das Antriebsmittel (5) aufweist.Headlights for vehicles with a bowl-shaped reflector (1), with a light source (2) assigned to the reflector (1), with a between a lens (3) and the reflector (1) arranged diaphragm shaft (4), with a drive means (5) coupled to the diaphragm shaft (4), through which the diaphragm shaft (4) around a horizontal and transverse to the optical axis (6) extending axis of rotation (7) is adjustable in several rotational positions, and with a holder supporting the diaphragm shaft (4) and the drive means (5), characterized in that a below the diaphragm shaft (4) arranged shading (8) of the holder for the diaphragm shaft (4) and that Drive means (5), the diaphragm shaft (4) having a section in a upwardly open receiving groove (9) of the shader (8) is arranged and the shader (8) on the side of its receiving groove (9) Has receiving element (10) for the drive means (5). Scheinwerfer nach Anspruch (1), dadurch gekennzeichnet, daß der die Aufnahmerinne (9) für die Blendenwelle (4) aufweisende Abschatter (8) und zumindest ein Teil des Aufnahmeelements (10) für das Antriebsmmittel (5) einstückig ausgeführt sind.Headlight according to claim (1), characterized in that the Receiving channel (9) for the shutter shaft (4) having shading (8) and at least part of the receiving element (10) for the drive means (5) are made in one piece. Scheinwerfer nach Anspruch (1) oder (2), dadurch gekennzeichnet, daß die Aufnahmerinne (9) sich zwischen Blendenwelle (4) und Reflektor (1) oder Blendenwelle (4) und Linse (3) erstreckt.Headlight according to claim (1) or (2), characterized in that the Receiving channel (9) between the diaphragm shaft (4) and reflector (1) or Aperture shaft (4) and lens (3) extends. Scheinwerfer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß ein oberer Rand (15) der Aufnahmerinne (9) des Abschatters (8) zusammen mit der Drehachse (7) der Blendenwelle (4) in einer in Lichtaustrittsrichtung verlaufenden Fläche liegt. Headlight according to one of claims 1 to 3, characterized in that that an upper edge (15) of the receiving groove (9) of the shader (8) together with the axis of rotation (7) of the diaphragm shaft (4) in one Light exit direction is surface. Scheinwerfer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Aufnahmerinne (9) in ihrer Länge durch Seitenwände (11) begrenzt ist, in die Lageröffnungen (12) für die Blendenwelle (4) eingebracht sind.Headlight according to one of claims 1 to 4, characterized in that that the receiving channel (9) is limited in length by side walls (11) is introduced into the bearing openings (12) for the diaphragm shaft (4). Scheinwerfer nach Anspruch 5, dadurch gekennzeichnet, daß an eine der beiden Seitenwände (11) das Aufnahmeelement (10) für das Antriebsmittel (5) angeformt ist.Headlight according to claim 5, characterized in that one of the two side walls (11) the receiving element (10) for the drive means (5) is molded. Scheinwerfer nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Aufnahmeelement (10) in seiner Hauptausdehnung quer zur Drehachse (7) der Blendenwelle (4) verläuft und zur Rückseite des Scheinwerfers hin weist, wobei ein elektrischer Motor (13) des Antriebsmittels (5) auf der dem Reflektor (1) zugewandten Seite des Aufnahmeelements (10) angeordnet ist und der elektrische Motor (13) über ein Getriebe (14) des Antriebsmittels (5) mit der Blendenwelle (4) gekoppelt ist.Headlight according to one of claims 1 to 6, characterized in that that the receiving element (10) in its main dimension transverse to The axis of rotation (7) of the diaphragm shaft (4) runs and to the rear of the Headlight points, wherein an electric motor (13) of the drive means (5) on the side of the receiving element (10) facing the reflector (1) is arranged and the electric motor (13) via a gear (14) of the Drive means (5) is coupled to the diaphragm shaft (4). Scheinwerfer nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das Aufnahmeelement (10) ein Gehäuseteil für das Getriebe (14) aufweist.Headlight according to one of claims 1 to 7, characterized in that that the receiving element (10) is a housing part for the transmission (14) having. Scheinwerfer nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß der Abschatter (8) abgewinkelte äußere Randabschnitte (17) aufweist und an einem vorderen Rand des Reflektors (1) befestigt ist.Headlight according to one of claims 1 to 8, characterized in that that the shader (8) has angled outer edge portions (17) and is attached to a front edge of the reflector (1). Scheinwerfer nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß an die Innenseite der Aufnahmerinne (9) mindestens ein Anschlag (16) für die Blendenwelle (4) angebracht ist.Headlight according to one of claims 1 to 9, characterized in that that at least one stop (16) on the inside of the receiving channel (9) for the diaphragm shaft (4) is attached.
EP00109699A 1999-05-12 2000-05-08 Vehicle headlamp Expired - Lifetime EP1052446B1 (en)

Applications Claiming Priority (2)

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DE19921907A DE19921907A1 (en) 1999-05-12 1999-05-12 Headlights for vehicles
DE19921907 1999-05-12

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EP1052446A2 true EP1052446A2 (en) 2000-11-15
EP1052446A3 EP1052446A3 (en) 2002-03-13
EP1052446B1 EP1052446B1 (en) 2004-02-25

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005024296A1 (en) * 2003-09-05 2005-03-17 Hella Kgaa Hueck & Co. Headlight for vehicles
FR2868149A1 (en) * 2004-03-26 2005-09-30 Valeo Vision Sa Headlight device e.g. low beam/high beam headlamp, for motor vehicle, has case with compartment for receiving motor and lens support maintaining lens and integrated to reflector, where case and lens support form monoblock casting
FR2868507A1 (en) * 2004-04-02 2005-10-07 Valeo Vision Sa Headlight device for motor vehicle, has case, and support units to maintain rod of support part of swiveling shutter, so that motor and shutter rotational axes are parallel, and toothed wheel and terminal pinion of motor constitute gear
EP1962015A1 (en) 2007-02-22 2008-08-27 Valeo Vision Headlight for automobile
DE102009027850A1 (en) 2008-07-21 2010-03-25 Visteon Global Technologies, Inc., Van Buren Township Adaptive projection system for motor vehicle headlight, has rotary mobile part and/or screen cap mounted on output shaft of motor in projecting manner, where cap is fastened to various defined positions by its rotation
DE102010031620A1 (en) 2009-07-28 2011-05-12 Visteon Global Technologies Inc., Van Buren Adaptive projector system for motor vehicle headlights

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3967153B2 (en) * 2002-03-04 2007-08-29 株式会社小糸製作所 Vehicle headlamp
DE10340962A1 (en) 2003-09-05 2005-05-19 Hella Kgaa Hueck & Co. Headlights for vehicles
DE102005021695B4 (en) * 2005-05-11 2014-10-09 Hella Kgaa Hueck & Co. Projection headlights for vehicles

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4335286A1 (en) 1992-10-21 1994-04-28 Koito Mfg Co Ltd Spotlamp for a car - has motorised shutter between reflector and lens, comprising two eccentric cylinders of different diameters on shaft

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2777052B2 (en) * 1993-10-13 1998-07-16 株式会社小糸製作所 Automotive headlamp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4335286A1 (en) 1992-10-21 1994-04-28 Koito Mfg Co Ltd Spotlamp for a car - has motorised shutter between reflector and lens, comprising two eccentric cylinders of different diameters on shaft

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005024296A1 (en) * 2003-09-05 2005-03-17 Hella Kgaa Hueck & Co. Headlight for vehicles
FR2868149A1 (en) * 2004-03-26 2005-09-30 Valeo Vision Sa Headlight device e.g. low beam/high beam headlamp, for motor vehicle, has case with compartment for receiving motor and lens support maintaining lens and integrated to reflector, where case and lens support form monoblock casting
FR2868507A1 (en) * 2004-04-02 2005-10-07 Valeo Vision Sa Headlight device for motor vehicle, has case, and support units to maintain rod of support part of swiveling shutter, so that motor and shutter rotational axes are parallel, and toothed wheel and terminal pinion of motor constitute gear
EP1962015A1 (en) 2007-02-22 2008-08-27 Valeo Vision Headlight for automobile
FR2913094A1 (en) 2007-02-22 2008-08-29 Valeo Vision Sa PROJECTOR FOR MOTOR VEHICLE.
DE102009027850A1 (en) 2008-07-21 2010-03-25 Visteon Global Technologies, Inc., Van Buren Township Adaptive projection system for motor vehicle headlight, has rotary mobile part and/or screen cap mounted on output shaft of motor in projecting manner, where cap is fastened to various defined positions by its rotation
DE102010031620A1 (en) 2009-07-28 2011-05-12 Visteon Global Technologies Inc., Van Buren Adaptive projector system for motor vehicle headlights
US8646954B2 (en) 2009-07-28 2014-02-11 Varroc Lighting Systems S.R.O. Adaptive projector system for motor vehicle headlights

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DE50005376D1 (en) 2004-04-01
DE19921907A1 (en) 2000-11-16
EP1052446A3 (en) 2002-03-13
EP1052446B1 (en) 2004-02-25

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