EP0200929A2 - Dipped-beam headlight for vehicles - Google Patents

Dipped-beam headlight for vehicles Download PDF

Info

Publication number
EP0200929A2
EP0200929A2 EP86104626A EP86104626A EP0200929A2 EP 0200929 A2 EP0200929 A2 EP 0200929A2 EP 86104626 A EP86104626 A EP 86104626A EP 86104626 A EP86104626 A EP 86104626A EP 0200929 A2 EP0200929 A2 EP 0200929A2
Authority
EP
European Patent Office
Prior art keywords
ring
lens
vehicle headlight
reflector
frame
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
EP86104626A
Other languages
German (de)
French (fr)
Other versions
EP0200929A3 (en
EP0200929B1 (en
Inventor
Franz Dipl.-Ing. Feyerabend
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
Priority to AT86104626T priority Critical patent/ATE70347T1/en
Publication of EP0200929A2 publication Critical patent/EP0200929A2/en
Publication of EP0200929A3 publication Critical patent/EP0200929A3/en
Application granted granted Critical
Publication of EP0200929B1 publication Critical patent/EP0200929B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/47—Attachment thereof
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F21S41/295—Attachment thereof specially adapted to projection lenses
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses

Definitions

  • the invention relates to a dimmed vehicle headlight with an ellipsoidal reflector, with a light source arranged in the first focal point of the reflector, with a collecting lens inserted in the beam path behind the second focal point and carried by an annular part of a frame connected to the reflector, and with a collecting lens in the beam path arranged in front of the converging lens and in the focal point of the converging lens, the upper, essentially horizontal edge of which produces the light / dark boundary.
  • a dimmed vehicle headlight of this type is known from DE-GM 84 30 629, in which the frame supporting the panel has the shape of a table and connects the reflector, panel and converging lens to form a fixed unit.
  • the converging lens is inserted from below into an opening in the top of the frame and lies with its outer flange on the edge of the opening.
  • the converging lens can be fastened to the frame by gluing or by spring plates that are riveted or screwed to the frame on the outer flange under pretension.
  • the insertion of the converging lens between the legs in the opening of the frame and the attachment of the converging lens by gluing, riveting and screwing is cumbersome and time-consuming.
  • the converging lens attached by riveting or gluing cannot be dismantled. With a screw connection, a secure tight fit of the converging lens is not always guaranteed.
  • the lens can be automatically and simply assembled quickly, since the lens can be inserted from the outside into the receiving opening of the frame and can be securely fixed in the frame by means of a simple snap ring.
  • the lens can be removed if the frame is damaged, since it can be pushed out of the ring with great effort.
  • the ring has radially inwardly directed projections between the plane formed by the support points and the ring end with the smaller diameter on the circumference, whose mutually facing surfaces serve as centering surfaces for the outer edge of the lens.
  • the lens is centered on the optical axis after being inserted into the receiving opening of the frame.
  • the lugs and the projections are formed by regions cut free from the ring and bent radially inwards.
  • a frame made of sheet metal can be produced very inexpensively.
  • the ring has the shape of a truncated cone or a spherical section between the largest and smallest inside diameter.
  • the snap ring presses the converging lens with a relatively large force against the lugs of the frame which serve as support points.
  • the snap ring bears against the front outer circumferential edge of the converging lens under prestress, and the forces of the snap ring acting on the edge are directed to a common point on the optical axis.
  • the outer circumferential edge of the converging lens, against which the snap ring rests under prestress has a radius or a bevel.
  • the converging lens is fixed by the snap ring not only in the axial direction, but also in the radial direction. By fixing the converging lens in the radial direction, the converging lens is exactly centered on the optical axis.
  • a vehicle headlight which consists essentially of an ellipsoidal reflector 1 and a diaphragm 4 arranged between the converging lens 2 and the reflector 1.
  • the inner reflection surface of the reflector 1 forms a semi-ellipse in the axial longitudinal sections.
  • the filament 3 of an incandescent lamp 5 is arranged, which is carried by an annular lamp holder 6 inserted into the apex of the reflector 1 and glued to the rear of the reflector.
  • the incandescent lamp 5 is fixed by a spring 7 which can be placed under prestress on the base plate.
  • a cover cap 8 made of rubber is placed on the annular lamp holder 6.
  • the edge 13 of the diaphragm 4 which generates the light / dark boundary is misaligned with the second focal point of the reflector 1 and is arranged in the focal point of the lens 2.
  • the panel 4 is made in one piece with a cup-shaped frame 9 produced in the deep-drawing process.
  • the cup 9 tapers conically to the bottom surface 10 and carries the converging lens 2 inserted from the cut-out bottom surface 10.
  • Four arm-shaped webs 16 and 17 are cut free from the annular part 12 of the cup 9, the free ends 18 of which are cut by welding the outer circumferential reflector edge 14 are firmly connected.
  • the web 19 cut free from the cup 9 between the webs 17 serves with its free end section angled towards the optical axis as a diaphragm 4.
  • the webs 17 adjacent to the diaphragm 4 serve as diaphragm 4 as support elements, ie after the diaphragm 4 has been adjusted their lateral sections 27 are welded to the support elements 17.
  • the ring-shaped part 12 of the frame 9 is circular and tapers in its inner diameter in the part 11 of its height in the light exit direction.
  • the ring 12 has the shape of a spherical section between the largest and smallest inside diameter D 'and d.
  • the converging lens 2 inserted into the ring 12 from the smaller inside diameter d bears against lugs 30 which are evenly distributed on the circumference and which are cut out of the ring 12 and bent radially inwards.
  • the end faces 31 of the tongues 30 pointing towards the converging lens 2 serve as support points for the converging lens 2.
  • radially inward projections 33 are introduced into the ring 12 between the tongues 30.
  • the projections 33 form strips cut free from the ring 12, the longitudinal direction of which extends perpendicular to the optical axis and which are given an arcuate shape by pressure from outside.
  • the mutually facing surfaces 34 of the strips 33 serve to pre-center the converging lens 2.
  • a snap ring 15 is inserted from the front between the converging lens 2 and the part 11 tapering inwards of the ring 12.
  • the snap ring 15 presses into a gap formed by the converging lens 2 and the ring 12 without resting on the bottom of the gap.
  • the snap ring 15 bears against the front outer circumferential edge 35, which has a radius, under prestress.
  • the forces acting on the edge 35 of the converging lens 2 are directed to a common point on the optical axis.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Glass Compositions (AREA)

Abstract

This headlight consists of an ellipsoid reflector, a light source arranged at the inner focal point of the reflector, a collecting lens inserted in the beam path behind the second focal point and carried by an annular part of a frame connected to the reflector, and a diaphragm arranged in front of the collecting lens in the beam path and at the focal point of the collecting lens. The annular part of the frame is circular and tapers in a part of its height in its inside diameter, seen in the direction of light emergence. The ring exhibits projections protruding radially inwards and distributed around its circumference, which are used as support points for the lens inserted from the direction of the small inside diameter. Between the lens and the inwardly tapering ring, a spring ring is inserted under pretension which presses into a gap formed by the lens and the ring without resting on the bottom of the gap and which presses the lens against the support points. <IMAGE>

Description

Die Erfindung bezieht sich auf einen abgeblendeten Fahrzeugscheinwerfer mit einem ellipsoidförmigen Reflektor, mit einer im ersten Brennort des Reflektors angeordneten Lichtquelle, mit einer im Strahlengang hinter dem zweiten Brennort eingesetzten und von einem ringförmigen Teil eines mit dem Reflektor verbundenen Gestells getragenen Sammellinse und mit einer im Strahlengang vor der Sammellinse und im Brennort der Sammellinse angeordneten Blende, deren obere im wesentlichen horizontal verlaufende Kante die Hell/ Dunkel-Grenze erzeugt.The invention relates to a dimmed vehicle headlight with an ellipsoidal reflector, with a light source arranged in the first focal point of the reflector, with a collecting lens inserted in the beam path behind the second focal point and carried by an annular part of a frame connected to the reflector, and with a collecting lens in the beam path arranged in front of the converging lens and in the focal point of the converging lens, the upper, essentially horizontal edge of which produces the light / dark boundary.

Ein abgeblendeter Fahrzeugscheinwerfer dieser Art ist aus dem DE-GM 84 30 629 bekannt, bei dem das die Blende tragende Gestell die Form eines Tisches aufweist und den Reflektor, Blende und Sammellinse zu einer festen Einheit verbindet. Die Sammellinse ist von unten her in eine Öffnung der Oberseite des Gestells eingesetzt und liegt mit seinem Außenflansch an dem Rand der Öffnung an. Die Befestigung der Sammellinse an dem Gestell kann durch Kleben oder durch an dem Außenflansch unter Vorspannung anliegenden Federblechen, die an dem Gestell festgenietet oder festgeschraubt sind, erfolgen. Das Einsetzen der Sammellinse zwischen den Beinen in die Öffnung des Gestells und die Befestigung der Sammellinse durch Kleben, Nieten und Schrauben ist umständlich und zeitaufwendig. Außerdem kann bei einem beschädigten Gestell die durch Nieten oder Kleben befestigte Sammellinse nicht demontiert werden. Bei einer Schraub-Verbindung ist nicht immer ein sicherer Festsitz der Sammellinse gewährleistet.A dimmed vehicle headlight of this type is known from DE-GM 84 30 629, in which the frame supporting the panel has the shape of a table and connects the reflector, panel and converging lens to form a fixed unit. The converging lens is inserted from below into an opening in the top of the frame and lies with its outer flange on the edge of the opening. The converging lens can be fastened to the frame by gluing or by spring plates that are riveted or screwed to the frame on the outer flange under pretension. The insertion of the converging lens between the legs in the opening of the frame and the attachment of the converging lens by gluing, riveting and screwing is cumbersome and time-consuming. In addition, if the frame is damaged, the converging lens attached by riveting or gluing cannot be dismantled. With a screw connection, a secure tight fit of the converging lens is not always guaranteed.

Aufgabe der Erfindung ist es, einen Fahrzeugscheinwerfer mit einem den Reflektor, Blende und Sammellinse zu einer festen Einheit verbindenden Gestell derart auszubilden, daß die Sammellinse sich einfach und schnell von vorn montieren und demontieren läßt. Darüber hinaus soll die Sammellinse sicher festsitzen. Diese Aufgabe wird nach der Erfindung durch folgende Merkmale gelöst:

  • a) der ringförmige Teil des Gestells ist kreisförmig,
  • b) über zumindest einen Teil seiner Höhe verjüngt sich der Ring in Lichtaustrittsrichtung gesehen in seinem Innendurchmesser,
  • c) der kleinere Innendurchmesser des ringförmigen Teils entspricht dem Außendurchmesser der Linse,
  • d) der Ring weist auf dem Umfang verteilte radial nach innen vorspringende Ansätze auf,
  • e) die radial vorspringenden Ansätze dienen als Auflagepunkte für die von dem kleinen Innendurchmesser her eingesetzte Linse,
  • f) zwischen der Linse und dem sich nach innen verjüngenden Ring ist unter Vorspannung ein Sprengring eingesetzt,
  • g) der Sprengring preßt sich in einen von der Linse und dem Ring gebildeten Spalt, ohne am Grund des Spaltes aufzuliegen und preßt die Linse gegen die Auflagepunkte.
The object of the invention is to provide a vehicle headlamp with a frame connecting the reflector, diaphragm and converging lens to form a fixed unit such that the converging lens can be easily and quickly assembled and disassembled from the front. In addition, the converging lens should be stuck securely. This object is achieved according to the invention by the following features:
  • a) the ring-shaped part of the frame is circular,
  • b) the ring tapers in at least part of its height, seen in the light exit direction, in its inner diameter,
  • c) the smaller inside diameter of the annular part corresponds to the outside diameter of the lens,
  • d) the ring has radially inwardly projecting projections distributed over the circumference,
  • e) the radially projecting lugs serve as support points for the lens used from the small inside diameter,
  • f) a snap ring is inserted under prestress between the lens and the inwardly tapering ring,
  • g) the snap ring presses into a gap formed by the lens and the ring without resting on the bottom of the gap and presses the lens against the support points.

Bei einer solchen vorteilhaften Ausführungsform kann die Linse einfach und schnell automatisch montiert werden, da die Linse von außen in die Aufnahmeöffnung des Gestells einsetzbar ist und durch einen einfachen Sprengring sicher in dem Gestell festsetzbar ist. Die Demontage der Sammellinse ist bei einem beschädigten Gestell möglich, da sie mit großem Kraftaufwand aus dem Ring herausdrückbar ist.In such an advantageous embodiment, the lens can be automatically and simply assembled quickly, since the lens can be inserted from the outside into the receiving opening of the frame and can be securely fixed in the frame by means of a simple snap ring. The lens can be removed if the frame is damaged, since it can be pushed out of the ring with great effort.

Bei einer weiteren Ausführungsform der Erfindung ist es vorteilhaft, wenn der Ring zwischen der von den Auflagepunkten gebildeten Ebene und dem Ringende mit dem kleineren Durchmesser auf dem Umfang verteilte radial nach innen gerichtete Vorsprünge aufweist, deren zueinandergerichtete Flächen als Zentrierflächen für den Außenrand der Linse dienen. Dadurch ist die Linse nach dem Einsetzen in die Aufnahmeöffnung des Gestells zur optischen Achse zentriert.In a further embodiment of the invention, it is advantageous if the ring has radially inwardly directed projections between the plane formed by the support points and the ring end with the smaller diameter on the circumference, whose mutually facing surfaces serve as centering surfaces for the outer edge of the lens. As a result, the lens is centered on the optical axis after being inserted into the receiving opening of the frame.

Weiterhin ist es vorteilhaft, wenn bei einem im Druckgießverfahren hergestellten Gestell oberhalb der Ansätze und Vorsprünge jeweils eine Aussparung in den Ring eingebracht ist. Dadurch sind für die Entformung in diesen Bereichen keine verstellbaren Werkzeugteile erforderlich.Furthermore, it is advantageous if, in the case of a die-casting process, a recess is made in the ring above the projections and projections. As a result, no adjustable tool parts are required for demolding in these areas.

Ferner ist es vorteilhaft, wenn bei einem aus Blech hergestellten Gestell die Ansätze und die Vorsprünge von aus dem Ring freigeschnittenen und radial nach innen gebogenen Bereichen gebildet sind. Ein solches aus Blech bestehendes Gestell kann sehr kostengünstig hergestellt werden.Furthermore, it is advantageous if, in the case of a frame made of sheet metal, the lugs and the projections are formed by regions cut free from the ring and bent radially inwards. Such a frame made of sheet metal can be produced very inexpensively.

Ein weiterer Vorteil ist es, wenn der Ring zwischen dem größten und kleinsten Innendurchmesser die Form eines Kegelstumpfes oder eines Kugelabschnittes aufweist.It is a further advantage if the ring has the shape of a truncated cone or a spherical section between the largest and smallest inside diameter.

Bei einer solchen Ausführungsform drückt der Sprengring die Sammellinse mit einer relativ großen Kraft gegen die als Auflagepunkte dienenden Ansätze des Gestells.In such an embodiment, the snap ring presses the converging lens with a relatively large force against the lugs of the frame which serve as support points.

Bei einer besonders vorteilhaften-Ausführungsform der Erfindung liegt der Sprengring an der vorderen äußeren umlaufenden Kante der Sammellinse unter Vorspannung an,und die dabei auf die Kante wirkenden Kräfte des Sprengringes sind auf einen gemeinsamen Punkt auf der optischen Achse gerichtet. Hierbei ist es zweckmäßig, wenn die äußere umlaufende Kante der Sammellinse, an dem der Sprengring unter Vorspannung anliegt, einen Radius oder eine Abschrägung aufweist. Hierbei ist die Sammellinse durch den Sprengring nicht nur in axialer Richtung festgesetzt, sondern auch in radialer Richtung. Durch das Festsetzen der Sammellinse in radialer Richtung ist die Sammellinse genau zur optischen Achse zentriert.In a particularly advantageous embodiment of the invention, the snap ring bears against the front outer circumferential edge of the converging lens under prestress, and the forces of the snap ring acting on the edge are directed to a common point on the optical axis. It is expedient here if the outer circumferential edge of the converging lens, against which the snap ring rests under prestress, has a radius or a bevel. Here, the converging lens is fixed by the snap ring not only in the axial direction, but also in the radial direction. By fixing the converging lens in the radial direction, the converging lens is exactly centered on the optical axis.

Die Erfindung ist in der Zeichnung dargestellt, und zwar zeigt

  • Figur 1 einen vertikalen Längsschnitt entlang der optischen Achse durch die von Sammellinse, Blende und Reflektor gebildete optische Einheit des Scheinwerfers,
  • Figur-2 eine perspektivische Ansicht des einteilig mit der Blende ausgebildeten Gestells, das mit einem ringförmigen Teil die Sammellinse trägt, und
  • Figur 3 die Einzelheit X.
The invention is shown in the drawing, namely shows
  • 1 shows a vertical longitudinal section along the optical axis through the ge of the converging lens, diaphragm and reflector formed optical unit of the headlight,
  • FIG. 2 shows a perspective view of the frame which is formed in one piece with the diaphragm and which carries the collecting lens with an annular part, and
  • Figure 3 shows the detail X.

In der Zeichnung ist ein Fahrzeugscheinwerfer dargestellt, der im wesentlichen aus einem Ellipsoid-Reflektor 1 und einer zwischen der Sammellinse 2 und dem Reflektor 1 angeordneten Blende 4 besteht. Die innenliegende Reflexionsfläche des Reflektors 1 bildet in den axialen Längsschnitten jeweils eine Halbellipse. In dem Brennpunkt der Halbellipsen ist der Glühfaden 3 einer Glühlampe 5 angeordnet, die von einer ringförmigen in die.Scheitelöffnung des Reflektors 1 eingesetzten und mit der Reflektorrückseite verklebten Lampenfassung 6 getragen ist. In der Lampenfassung 6 ist die Glühlampe 5 durch eine an den Sockelteller unter Vorspannung anlegbare Feder 7 festgesetzt. Auf die ringförmige Lampenfassung 6 ist eine aus Gummi bestehende Abdeckkappe 8 aufgesetzt. Die die Hell/Dunkel-Grenze erzeugende Kante 13 der Blende 4 ist zum zweiten Brennort des Reflektors 1 dejustiert und im Brennpunkt der Linse 2 angeordnet.In the drawing, a vehicle headlight is shown, which consists essentially of an ellipsoidal reflector 1 and a diaphragm 4 arranged between the converging lens 2 and the reflector 1. The inner reflection surface of the reflector 1 forms a semi-ellipse in the axial longitudinal sections. In the focal point of the semi-ellipses, the filament 3 of an incandescent lamp 5 is arranged, which is carried by an annular lamp holder 6 inserted into the apex of the reflector 1 and glued to the rear of the reflector. In the lamp holder 6, the incandescent lamp 5 is fixed by a spring 7 which can be placed under prestress on the base plate. A cover cap 8 made of rubber is placed on the annular lamp holder 6. The edge 13 of the diaphragm 4 which generates the light / dark boundary is misaligned with the second focal point of the reflector 1 and is arranged in the focal point of the lens 2.

Die Blende 4 ist einteilig mit einem im Tiefziehverfahren hergestellten becherförmigen Gestell 9 hergestellt. Der Becher 9 verjüngt sich zur Bodenfläche 10 konisch und trägt die von der ausgeschnittenen Bodenfläche 10 her eingesetzte Sammellinse 2. Aus dem ringförmigen Teil 12 des Bechers 9 sind vier am Umfang gleichmäßig verteilte armförmige Stege 16 und 17 freigeschnitten, deren freie Enden 18 durch Schweißen mit dem äußeren umlaufenden Reflektorrand 14 fest verbunden sind. Der zwischen den Stegen 17 aus dem Becher 9 freigeschnittene Steg 19 dient mit seinem freien zur optischen Achse hin abgewinkelten Endabschnitt als Blende 4. Die der Blende 4 benachbarten Stege 17 dienen der Blende 4 als Stützelemente, d. h. nach dem Einjustieren der Blende 4 werden ihre seitlichen Abschnitte 27 mit den Stützelementen 17 verschweißt.The panel 4 is made in one piece with a cup-shaped frame 9 produced in the deep-drawing process. The cup 9 tapers conically to the bottom surface 10 and carries the converging lens 2 inserted from the cut-out bottom surface 10. Four arm-shaped webs 16 and 17 are cut free from the annular part 12 of the cup 9, the free ends 18 of which are cut by welding the outer circumferential reflector edge 14 are firmly connected. The web 19 cut free from the cup 9 between the webs 17 serves with its free end section angled towards the optical axis as a diaphragm 4. The webs 17 adjacent to the diaphragm 4 serve as diaphragm 4 as support elements, ie after the diaphragm 4 has been adjusted their lateral sections 27 are welded to the support elements 17.

Der ringförmige Teil 12 des Gestells 9 ist kreisförmig und verjüngt sich in dem Teil 11 seiner Höhe in Lichtaustrittsrichtung gesehen in seinem Innendurchmesser. Der Ring 12 weist zwischen dem größten und kleinsten Innendurchmesser D'und d die Form eines Kugelabschnittes auf. Die in den Ring 12 von dem kleineren Innendurchmesser d her eingesetzte Sammellinse 2 liegt an gleichmäßig auf dem Umfang verteilten von Zungen 30 gebildeten Ansätzen an, die aus dem Ring 12 freigeschnitten und radial nach innen gebogen sind. Die Stirnflächen 31 der zur Sammellinse 2 weisenden Zungen 30 dienen als Auflagepunkte für die Sammellinse 2. Hierbei ist es vorteilhaft, wenn die freien Enden 32 der Zungen 30 z. B. durch Abschneiden so nachgearbeitet sind, daß die Auflagepunkte 31 für die Sammellinse 2 in einer genau vertikal zur optischen Achse stehenden Ebene liegen. Das abgeschnittene freie Ende einer Zunge 30 ist in der Einzelheit X gestrichelt gezeichnet. Zwischen der von den Auflagepunkten der Zungen 30 gebildeten Ebene und dem Ringende 10 mit dem kleineren Durchmesser d sind zwischen den Zungen 30 radial nach innen gerichtete Vorsprünge 33 in den Ring 12 eingebracht. Die Vorsprünge 33 bilden aus dem Ring 12 freigeschnittene Streifen, deren Längsrichtung senkrecht zur optischen Achse verläuft und die durch einen Druck von auß en einen bogenförmigen Verlauf erhalten. Die zueinandergerichteten Flächen 34 der Streifen 33 dienen zur Vorzentrierung der Sammellinse 2. Damit die Sammellinse 2 in dem Ring 12 festsetzbar ist, ist zwischen der Sammellinse 2 und dem den Ring 12 nach innen verjüngenden Teil 11 von vorn ein Sprengring 15 unter Vorspannung eingesetzt. Der Sprengring 15 preßt sich in einen von der Sammellinse 2 und dem Ring 12 gebildeten Spalt,ohne am Grund des Spaltes aufzuliegen. An der Sammellinse 2 liegt der Sprengring 15 an der vorderen äußeren umlaufenden und einen Radius aufweisenden Kante 35 unter Vorspannung an. Hierbei sind die auf die Kante 35 der Sammellinse 2 wirkenden Kräfte auf einen gemeinsamen Punkt auf der optischen Achse gerichtet.The ring-shaped part 12 of the frame 9 is circular and tapers in its inner diameter in the part 11 of its height in the light exit direction. The ring 12 has the shape of a spherical section between the largest and smallest inside diameter D 'and d. The converging lens 2 inserted into the ring 12 from the smaller inside diameter d bears against lugs 30 which are evenly distributed on the circumference and which are cut out of the ring 12 and bent radially inwards. The end faces 31 of the tongues 30 pointing towards the converging lens 2 serve as support points for the converging lens 2. Here it is advantageous if the free ends 32 of the tongues 30 z. B. are reworked by cutting so that the support points 31 for the converging lens 2 lie in a plane exactly vertical to the optical axis. The cut free end of a tongue 30 is shown in dashed lines in detail X. Between the plane formed by the contact points of the tongues 30 and the ring end 10 with the smaller diameter d, radially inward projections 33 are introduced into the ring 12 between the tongues 30. The projections 33 form strips cut free from the ring 12, the longitudinal direction of which extends perpendicular to the optical axis and which are given an arcuate shape by pressure from outside. The mutually facing surfaces 34 of the strips 33 serve to pre-center the converging lens 2. So that the converging lens 2 can be fixed in the ring 12, a snap ring 15 is inserted from the front between the converging lens 2 and the part 11 tapering inwards of the ring 12. The snap ring 15 presses into a gap formed by the converging lens 2 and the ring 12 without resting on the bottom of the gap. On the converging lens 2, the snap ring 15 bears against the front outer circumferential edge 35, which has a radius, under prestress. Here, the forces acting on the edge 35 of the converging lens 2 are directed to a common point on the optical axis.

Claims (7)

1. Abgeblendeter Fahrzeugscheinwerfer mit einem ellipsoidförmigen Reflektor, mit einer im ersten Brennort des Reflektors angeordneten Lichtquelle, mit einer im Strahlengang hinter dem zweiten Brennort eingesetzten und von einem ringförmigen Teil eines mit dem Reflektor verbundenen Gestells getragenen Sammellinse und mit einer im Strahlengang vor der Sammellinse und im Brennort der Sammellinse angeordneten Blende, deren obere im wesentlichen horizontal verlaufende Kante die Hell/Dunkel-Grenze erzeugt, gekennzeichnet durch folgende Merkmale: a) der ringförmige Teil (12) des Gestells (9) ist kreisförmig, b) über zumindest einen Teil (11) seiner Höhe verjüngt sich der Ring (12) in Lichtaustrittsrichtung gesehen in seinem Innendurchmesser, c) der kleinere Innendurchmesser (d) des ringförmigen Teils (12) entspricht dem Außendurchmesser der Linse (2), d) der Ring (12) weist auf dem Umfang verteilte radial nach innen vorspringende Ansätze (30) auf, e) die radial vorspringenden Ansätze (30) dienen als Auflagepunkte für die von dem kleinen Innendurchmesser (d) her eingesetzte Linse (2), f) zwischen der Linse (2) und dem sich nach innen verjüngenden Ring (12) ist unter Vorspannung ein Sprengring (15) eingesetzt, g) der Sprengring (15) preßt sich in einen von der Linse (2) und dem Ring (12) gebildeten Spalt, ohne am Grund des Spaltes aufzuliegen und preßt die Linse (2) gegen die Auflagepunkte (31). 1.Dimmed vehicle headlight with an ellipsoidal reflector, with a light source arranged in the first focal point of the reflector, with a collecting lens inserted in the beam path behind the second focal point and carried by an annular part of a frame connected to the reflector, and with one in the beam path in front of the collecting lens and Aperture arranged in the focal point of the converging lens, the upper, essentially horizontal edge of which forms the light / dark boundary, characterized by the following features: a) the annular part (12) of the frame (9) is circular, b) the ring (12) tapers over at least a part (11) of its height, seen in the light exit direction, in its inner diameter, c) the smaller inside diameter (d) of the annular part (12) corresponds to the outside diameter of the lens (2), d) the ring (12) has radially inwardly projecting projections (30) distributed over the circumference, e) the radially projecting lugs (30) serve as support points for the lens (2) used from the small inside diameter (d), f) a snap ring (15) is inserted between the lens (2) and the inwardly tapering ring (12), g) the snap ring (15) presses into a gap formed by the lens (2) and the ring (12) without resting on the bottom of the gap and presses the lens (2) against the support points (31). 2. Abgeblendeter Fahrzeugscheinwerfer nach Anspruch 1, dadurch gekennzeichnet, daß der Ring (12) zwischen der von den Auflagepunkten (31) gebildeten Ebene und dem Ringende (10) mit dem kleineren Durchmesser auf dem Umfang verteilte, radial nach innen gerichtete Vorsprünge (33) aufweist, deren zueinandergerichtete Flächen (34) als Zentrierflächen für den Außenrand der Linse (2) dienen.2. Dimmed vehicle headlight according to claim 1, characterized in that the ring (12) between the plane formed by the support points (31) and the ring end (10) with the smaller diameter distributed on the circumference, radially inwardly directed projections (33) has, the mutually facing surfaces (34) serve as centering surfaces for the outer edge of the lens (2). 3. Abgeblendeter Fahrzeugscheinwerfer nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß bei einem im Druckgießverfahren hergestellten Gestell (9) oberhalb der Ansätze (30) und Vorsprünge (33) jeweils eine Aussparung in den Ring (12) eingebracht ist.3. Dimmed vehicle headlight according to claim 1 or 2, characterized in that in a die-cast frame (9) above the lugs (30) and projections (33) each have a recess in the ring (12). 4. Abgeblendeter Fahrzeugscheinwerfer nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß bei einem aus Blech hergestellten Gestell (9) die Ansätze (30) und die Vorsprünge (33) von aus dem Ring (12) freigeschnittenen und radial nach innen gebogenen Bereichen gebildet sind.4. Dimmed vehicle headlight according to one of the preceding claims, characterized in that in a frame made of sheet metal (9), the lugs (30) and the projections (33) from the ring (12) cut free and radially inwardly bent areas are formed . 5. Abgeblendeter Fahrzeugscheinwerfer nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Ring (12) zwischen dem größten und kleinsten Innendurchmesser die Form eines Kegelstumpfes oder eines Kugelabschnittes aufweist.5. Dimmed vehicle headlight according to one of the preceding claims, characterized in that the ring (12) between the largest and smallest inner diameter has the shape of a truncated cone or a spherical section. 6. Abgeblendeter Fahrzeugscheinwerfer nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Sprengring (15) an der vorderen äußeren umlaufenden Kante (35) der Sammellinse (2) unter Vorspannung anliegt und die dabei auf die Kante (35) wirkenden Kräfte des Sprengringes (15) auf einen gemeinsamen Punkt auf der optischen Achse gerichtet sind.6. Dimmed vehicle headlight according to one of the preceding claims, characterized in that the snap ring (15) on the front outer circumferential edge (35) of the converging lens (2) bears under tension and the forces acting on the edge (35) of the snap ring ( 15) are directed to a common point on the optical axis. 7. Abgeblendeter Fahrzeugscheinwerfer nach Anspruch 6, dadurch gekennzeichnet, daß die äußere umlaufende Kante (35) der Sammellinse (2), an der der Sprengring (15) unter Vorspannung anliegt, einen Radius oder eine Abschrägung aufweist.7. Dimmed vehicle headlight according to claim 6, characterized in that the outer circumferential edge (35) of the converging lens (2), on which the snap ring (15) under voltage is present, has a radius or a bevel.
EP86104626A 1985-05-10 1986-04-04 Dipped-beam headlight for vehicles Expired - Lifetime EP0200929B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86104626T ATE70347T1 (en) 1985-05-10 1986-04-04 DIMMED HEADLIGHTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853516812 DE3516812A1 (en) 1985-05-10 1985-05-10 Dimmed vehicle headlights
DE3516812 1985-05-10

Publications (3)

Publication Number Publication Date
EP0200929A2 true EP0200929A2 (en) 1986-11-12
EP0200929A3 EP0200929A3 (en) 1989-03-15
EP0200929B1 EP0200929B1 (en) 1991-12-11

Family

ID=6270329

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86104626A Expired - Lifetime EP0200929B1 (en) 1985-05-10 1986-04-04 Dipped-beam headlight for vehicles

Country Status (7)

Country Link
EP (1) EP0200929B1 (en)
JP (1) JPS61284001A (en)
AT (1) ATE70347T1 (en)
AU (1) AU573975B2 (en)
DD (1) DD245939A5 (en)
DE (1) DE3516812A1 (en)
ES (1) ES294067Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2687762A1 (en) * 1992-02-24 1993-08-27 Valeo Vision Headlamp with lens, equipped with improved lens mounting means
FR2687761A1 (en) * 1992-02-24 1993-08-27 Valeo Vision Headlamp including improved means for stopping certain parts of the radiation, especially for motor vehicles
GB2321100A (en) * 1997-01-10 1998-07-15 Koito Mfg Co Ltd Vehicle lamp
EP2327926A1 (en) * 2009-11-25 2011-06-01 Hella KGaA Hueck & Co. Light unit for vehicles and mounting method

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3516813A1 (en) * 1985-05-10 1986-11-13 Hella KG Hueck & Co, 4780 Lippstadt Dimmed vehicle headlights
DE3529546C1 (en) * 1985-08-17 1987-02-05 Hella Kg Hueck & Co Dimmed vehicle headlights with an ellipsoidal reflector
DE3640773A1 (en) * 1986-11-28 1988-06-09 Hella Kg Hueck & Co HEADLIGHTS FOR VEHICLES ACCORDING TO THE PROJECTION PRINCIPLE
JPS63125302U (en) * 1987-02-09 1988-08-16
JPH0412562Y2 (en) * 1987-02-20 1992-03-26
JPS63131006U (en) * 1987-02-20 1988-08-26
JP2691712B2 (en) * 1987-06-17 1997-12-17 日産自動車 株式会社 Projector type vehicle headlight
DE3827593A1 (en) * 1988-08-13 1990-02-15 Hella Kg Hueck & Co Dimmed vehicle headlights according to the projection principle
DE3827594A1 (en) * 1988-08-13 1990-02-15 Hella Kg Hueck & Co METHOD FOR PRODUCING AND MANUFACTURED FRAME FOR A VEHICLE HEADLAMP USING THE PROJECTION METHOD
JPH0277809U (en) * 1988-12-05 1990-06-14
JPH03130103U (en) * 1990-04-10 1991-12-26
DE4334719B4 (en) * 1993-10-12 2004-07-29 Robert Bosch Gmbh vehicle headlights
FR2753148B1 (en) * 1996-09-06 1998-12-04 Valeo Vision PROJECTOR FOR A MOTOR VEHICLE WITH SIMPLIFIED ASSEMBLY
DE10140943A1 (en) * 2001-08-21 2003-03-06 Hella Kg Hueck & Co vehicle headlights
DE102010020615B4 (en) 2010-05-14 2021-07-22 HELLA GmbH & Co. KGaA Snap ring, lens holder and headlight
FR2973478B1 (en) * 2011-03-31 2019-04-05 Valeo Vision DEVICE FOR CENTERING A LENS FOR A DEVICE FOR LIGHTING AND / OR SIGNALING A VEHICLE
JP5901036B2 (en) * 2012-07-27 2016-04-06 シャープ株式会社 Lighting device
JP6155839B2 (en) * 2013-05-17 2017-07-05 市光工業株式会社 Vehicle lighting
CN105247274B (en) 2013-05-17 2018-07-20 市光工业株式会社 Lamps apparatus for vehicle
JP6171207B2 (en) * 2013-05-17 2017-08-02 市光工業株式会社 Vehicle lighting

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH98941A (en) * 1922-01-19 1923-05-01 Ame Des Usines Jean Gallay Soc Lighting apparatus for vehicles.
GB450348A (en) * 1935-09-17 1936-07-15 Leslie Robert Morshead Improvements relating to the projection of light

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH55400A (en) * 1911-11-22 1912-08-16 Kaspar Keiser Glass lens for lanterns
FR2087318A5 (en) * 1970-05-14 1971-12-31 Cibie Pierre
DD154122A1 (en) * 1980-11-03 1982-02-24 Reiner Albrecht HOLDING DEVICE FOR THE OPTICAL SYSTEM OF A HEADLAMP
DE3241713A1 (en) * 1982-11-11 1984-05-17 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt DIMMED HEADLIGHT FOR MOTOR VEHICLES
DE8430631U1 (en) * 1984-10-18 1985-02-07 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Dimmed vehicle headlights
DE8430629U1 (en) * 1984-10-18 1985-02-07 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Dimmed vehicle headlights
DE3516813A1 (en) * 1985-05-10 1986-11-13 Hella KG Hueck & Co, 4780 Lippstadt Dimmed vehicle headlights

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH98941A (en) * 1922-01-19 1923-05-01 Ame Des Usines Jean Gallay Soc Lighting apparatus for vehicles.
GB450348A (en) * 1935-09-17 1936-07-15 Leslie Robert Morshead Improvements relating to the projection of light

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2687762A1 (en) * 1992-02-24 1993-08-27 Valeo Vision Headlamp with lens, equipped with improved lens mounting means
FR2687761A1 (en) * 1992-02-24 1993-08-27 Valeo Vision Headlamp including improved means for stopping certain parts of the radiation, especially for motor vehicles
GB2321100A (en) * 1997-01-10 1998-07-15 Koito Mfg Co Ltd Vehicle lamp
GB2321100B (en) * 1997-01-10 1998-11-25 Koito Mfg Co Ltd Vehicle lamp
US6086231A (en) * 1997-01-10 2000-07-11 Koito Manufacturing Co., Ltd. Vehicle lamp
EP2327926A1 (en) * 2009-11-25 2011-06-01 Hella KGaA Hueck & Co. Light unit for vehicles and mounting method

Also Published As

Publication number Publication date
JPH0315281B2 (en) 1991-02-28
AU5649086A (en) 1986-11-13
DD245939A5 (en) 1987-05-20
DE3516812A1 (en) 1986-11-13
ES294067U (en) 1987-02-16
ES294067Y (en) 1987-10-16
EP0200929A3 (en) 1989-03-15
ATE70347T1 (en) 1991-12-15
DE3516812C2 (en) 1987-11-19
AU573975B2 (en) 1988-06-23
JPS61284001A (en) 1986-12-15
EP0200929B1 (en) 1991-12-11

Similar Documents

Publication Publication Date Title
EP0200929B1 (en) Dipped-beam headlight for vehicles
EP0200928B1 (en) Dipped-beam headlight for vehicles
EP0355528B1 (en) Dipped vehicle headlamp
EP0637715B1 (en) Replaceable light bulb mounting to a vehicle headlamp reflector
EP0212211A2 (en) Dipped-beam headlamp with an elliptical reflector
EP3321571B1 (en) Monoreflector surgical room light
EP0590439B1 (en) Headlamp for vehicles
DE4133527C2 (en) Headlights for motor vehicles
EP0268759B1 (en) Headlamp of the projector type for vehicles
EP0590454B1 (en) Headlamp for vehicles
EP0355529B1 (en) Dipped vehicle headlamp of the projector type
EP0412367B1 (en) Automotive vehicle headlamp
DE2850296C3 (en) Method for manufacturing a motor vehicle headlight
EP1547862B1 (en) Vehicle headlight
EP0935727B1 (en) Headlight for vehicles
WO2013139896A1 (en) Headlamp for vehicles
DE3034361C2 (en)
EP0855551A1 (en) Fixation device for securing a lamp in a reflector opening of a vehicle headlamp
DE102004037244A1 (en) Lighting unit for vehicles
DE2208886A1 (en) GAS SEALED HEADLIGHT

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT FR GB IT NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT FR GB IT NL SE

17P Request for examination filed

Effective date: 19890724

17Q First examination report despatched

Effective date: 19910430

ITF It: translation for a ep patent filed

Owner name: INTERPATENT ST.TECN. BREV.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT FR GB IT NL SE

REF Corresponds to:

Ref document number: 70347

Country of ref document: AT

Date of ref document: 19911215

Kind code of ref document: T

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19930430

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19941101

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
EAL Se: european patent in force in sweden

Ref document number: 86104626.6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19970423

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980405

EUG Se: european patent has lapsed

Ref document number: 86104626.6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19990426

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20000323

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000404

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010404

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20010404

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20030417

Year of fee payment: 18

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041231

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050404