EP0355528B1 - Phare de croisement - Google Patents

Phare de croisement Download PDF

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Publication number
EP0355528B1
EP0355528B1 EP89114441A EP89114441A EP0355528B1 EP 0355528 B1 EP0355528 B1 EP 0355528B1 EP 89114441 A EP89114441 A EP 89114441A EP 89114441 A EP89114441 A EP 89114441A EP 0355528 B1 EP0355528 B1 EP 0355528B1
Authority
EP
European Patent Office
Prior art keywords
lens
frame
reflector
cap
diaphragm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89114441A
Other languages
German (de)
English (en)
Other versions
EP0355528A3 (en
EP0355528A2 (fr
Inventor
Franz-Josef Böckeler
Horst Jackenkroll
Karl Witte
Axel Buchhorn
Hubert Marks
Wolfgang Gossmann
Diethard Schnelle
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 EP0355528A2 publication Critical patent/EP0355528A2/fr
Publication of EP0355528A3 publication Critical patent/EP0355528A3/de
Application granted granted Critical
Publication of EP0355528B1 publication Critical patent/EP0355528B1/fr
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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape 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
    • F21S41/50—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 a vehicle headlight with the features according to the preamble of claim 1.
  • the frame is formed by a cup-shaped sheet metal part produced in the deep-drawing process.
  • the arms of the frame attached to the reflector are cut free from the wall of the cup-shaped sheet metal part forming the lateral surface.
  • Another arm cut free from this wall has an end section which is angled towards the optical and which serves as a diaphragm.
  • An opening is cut out of the bottom of the cup-shaped sheet metal part, the peripheral region of which is the lens frame, which surrounds it and extends to the arms.
  • the contact surface for the lens inserted into the lens frame from the underside of the cup-shaped frame is the free ends of tongues, which are cut free from the lens frame and bent radially inwards.
  • the bearing surfaces are exactly in a vertical plane to the optical axis, it is necessary to remove the free ends of the tongues by an additional operation such. B. by cutting, need to be reworked.
  • the tongues can only be made using adjustable tool parts.
  • the panel is adjusted by an additional operation, such as. B. laser welding. (See DE-PS 35 16 812).
  • the lens is inserted between the arms of the frame in the lens frame and rests on an annular support surface of the lens frame facing the reflector. Furthermore, the screen is inserted between the arms of the frame and attached to the lens frame.
  • the diaphragm is made from a sheet metal strip, which is formed into a semicircular arc around an infinite number of bending lines running transversely to its longitudinal extent. Since such an arch can spring up with its end sections to a different degree, there is a relatively large tolerance range for the distance between the central region of the diaphragm edge and the contact surface for the lens. This does not guarantee that the central area of the diaphragm edge is exactly in the focal point of the lens. Only in this case is the cut-off line clearly shown.
  • the object of the invention is to improve the headlights described in the preamble of claim 1 such that the distance between the diaphragm edge generating the light-dark boundary is a fixed, unchangeable dimension, which is most safely ensured by this distance dimension the distance from tool parts is specified, which are arranged within a tool half.
  • the lens should continue from the front, i. H. even after installing the frame with the reflector can be easily placed on the lens frame and the screen can be very rigid in itself without additional fasteners.
  • the dome-shaped bulge can be produced using the deep-drawing process.
  • the opening is formed by the entire region of the dome-shaped bulge cut out above the diaphragm edge.
  • all light rays passing through the opening are not directed upwards and therefore cannot dazzle oncoming traffic.
  • the mass decreases in the area of the frame that carries the relatively heavy lens.
  • annular contact surface for the lens runs offset from the reflector by a circumferential step in the lens frame.
  • the position of the diaphragm edge towards the lens is also very precise, since the stepped circular ring surface together with the dome-shaped bulge can be pulled out of the central area of the frame receiving the lens .
  • the screen and the frame do not have to have any blackening on the sides facing the reflector in order to absorb light.
  • a blackening of these sides is not necessary, since all light rays of the incandescent lamp are shielded from the aperture and the frame to the outside below the edge of the aperture and the light rays striking the dome-shaped aperture are diffusely scattered in the direction of the reflector and therefore cannot dazzle oncoming traffic .
  • the lower half of the dome-shaped bulge of the frame has a punched-out opening.
  • the drawing shows a dimmed vehicle headlight which essentially consists of an ellipsoidal reflector (1) and an aperture (3) arranged between the convex lens (2) and the reflector (1).
  • the internal reflection surface of the reflector (1) forms a semi-ellipse in the axial longitudinal sections.
  • the filament (4) of the incandescent lamp (5) is arranged in the focal point of the semi-ellipses.
  • the diaphragm edge (6) of the diaphragm (3) which produces the light-dark boundary is arranged in the focal point of the lens (2).
  • the ellipsoidal reflector (1) has an opening (7) on the apex for receiving an annular lamp holder (8).
  • the incandescent lamp (5) is inserted into the lamp holder from the rear of the reflector and is pressed against the outside of the lamp holder (8) by the wire spring (9) with its flange projecting radially outwards.
  • a rubber cap (10) is placed on the lamp holder (8).
  • the diaphragm (3) is made in one piece with a frame (11) made of sheet metal, the arms (12) of which are firmly connected to the edge region of the reflector (1).
  • the arms (12) of the frame are connected to the outer edge of the lens frame (13) of the frame.
  • the lens (2) is inserted into the frame in the lens frame (13) from the light exit side.
  • the dome-shaped bulge (3) of the frame is created by deep-drawing the surface area within the lens frame (13).
  • the diameter of the outer edge of the dome-shaped bulge (3) is slightly smaller than the outer diameter of the lens.
  • the contact surface is then formed by a circular ring surface (15) which is offset in a stepped manner towards the reflector (1).
  • a cutout which extends into the side walls of the frame (11), is cut out from the upper and lower edge of the opening (14) receiving the light bulb (5).
  • the back of the lens lies against the circular surface (15).
  • the first and second retaining tabs (16 and 17) formed on the outer edge of the surface (13) are then bent with their free end towards the lens center.
  • the free end of the first retaining tab lies against the edge of the lens under prestress and is held in this position by the second retaining tab (17) cut free from the first retaining tab (16), that is to say that the first retaining tab cannot after bending spring back.
  • a rattle-free tight fit of the lens (2) in the frame (11) is thus ensured.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (5)

  1. Phare de feu de croisement comportant:
    - un réflecteur (1) en forme d'ellipsoïde,
    - une source de lumière (4) disposée dans le foyer intérieur du réflecteur (1),
    - une lentille (2) qui est placée dans un cadre de lentille (13) d'un support (11) en tôle, dont les bras (12) attachés au bord extérieur du cadre de lentille (13) sont fixés sur le réflecteur (1),
    - un diaphragme (3) fabriqué d'une seule pièce avec le support (11), dont l'arête de diaphragme (6) agencée dans le foyer intérieur de la lentille (2) produit la limite claire obscure du faisceau de lumière émergeant du phare,
    caractérisé en ce que
    - le diaphragme (3) est formé par un évasement en forme de calotte dirigé vers la source de lumière (4), lequel est pressé de la région de surface du support (11) se trouvant à l'intérieur du cadre de lentille (13),
    - l'arête de diaphragme (6) est formée par le bord d'une ouverture (14) découpée dans la moitié supérieure de l'évasement en forme de calotte (3),
    - le bord de l'évasement en forme de calotte (3) est de diamètre au moins légèrement plus petit que le diamètre extérieur de la lentille (2),
    - le rayon de l'évasement en forme de calotte (3) est si grand qu'au moins la région médiane de l'arête de diaphragme (6) s'étend dans le foyer de la lentille (2),
    - la lentille (2) repose sur une surface (15) en forme de couronne du cadre de lentille (13) opposée au réflecteur.
  2. Phare de feu de croisement selon la revendication 1, caractérisé en ce que l'ouverture est formée par toute la région de l'évasement (3) en forme de calotte découpée au-dessus de l'arête de diaphragme (6).
  3. Phare de feu de croisement selon la revendication 1 ou 2, caractérisé en ce que la surface d'appui en forme de couronne (15) pour la lentille (2) s'étend à travers un gradin circonférentiel dans le cadre de lentille (13) de manière décalée par rapport au réflecteur (1).
  4. Phare de feu de croisement selon l'une des revendications 1 à 3, caractérisé en ce que la moitié inférieure de l'évasement du support en forme de calotte présente une ouverture découpée.
  5. Phare de feu de croisement selon la revendication 1, caractérisé en ce que l'ouverture (14) dans l'évasement du support (11) en forme de calotte est réalisée sous la forme d'une fente longitudinale.
EP89114441A 1988-08-13 1989-08-04 Phare de croisement Expired - Lifetime EP0355528B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3827594 1988-08-13
DE3827594A DE3827594A1 (de) 1988-08-13 1988-08-13 Verfahren zur herstellung und nach dem verfahren hergestelltes gestell fuer einen fahrzeugscheinwerfer nach dem projektionsverfahren

Publications (3)

Publication Number Publication Date
EP0355528A2 EP0355528A2 (fr) 1990-02-28
EP0355528A3 EP0355528A3 (en) 1990-12-19
EP0355528B1 true EP0355528B1 (fr) 1994-02-16

Family

ID=6360841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89114441A Expired - Lifetime EP0355528B1 (fr) 1988-08-13 1989-08-04 Phare de croisement

Country Status (5)

Country Link
US (1) US4922386A (fr)
EP (1) EP0355528B1 (fr)
DD (1) DD284080A5 (fr)
DE (2) DE3827594A1 (fr)
ES (1) ES2049282T3 (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0821243B2 (ja) * 1990-06-19 1996-03-04 株式会社小糸製作所 投射型自動車用ヘッドランプ
JP2655741B2 (ja) * 1990-06-25 1997-09-24 株式会社小糸製作所 投射型自動車用ヘッドランプ
DE4305633A1 (de) * 1992-02-24 1993-10-07 Valeo Vision Verbesserung an Linsen-Scheinwerfern
FR2754039B1 (fr) * 1996-10-02 1998-12-18 Valeo Vision Projecteur du genre elliptique pour vehicule automobile, comportant un cache de coupure perfectionne, et procede de fabrication du cache
US6255114B1 (en) 1997-05-07 2001-07-03 E. I. Du Pont De Nemours & Company Starch biosynthetic enzymes
DE19738831A1 (de) * 1997-09-05 1999-05-20 Hella Kg Hueck & Co Scheinwerfer für Fahrzeuge
DE19813597A1 (de) * 1998-03-27 1999-09-30 Volkswagen Ag Beleuchtungseinrichtung. insbesondere Scheinwerfer nach dem Projektionsprinzip für Kraftfahrzeuge
DE19829345B4 (de) 1998-07-01 2009-11-26 Volkswagen Ag Projektionsscheinwerfer für Kraftfahrzeuge
FR2790542B1 (fr) 1999-03-02 2001-04-27 Valeo Vision Projecteur elliptique pour vehicule automobile comportant des moyens d'etalement d'une partie de la lumiere emise vers l'exterieur du projecteur
US6382821B1 (en) 2000-10-30 2002-05-07 Excel Products Inc. Ornamental vehicle lighting cover formed from flexible light transmissive sheet material
DE20107299U1 (de) * 2001-04-23 2001-08-09 Arnold & Richter Kg Scheinwerfer mit einem Gehäuse mit Halteklauen
JP2002367411A (ja) * 2001-06-05 2002-12-20 Koito Mfg Co Ltd 車輌用前照灯
AT502161B1 (de) * 2004-03-02 2007-05-15 Zizala Lichtsysteme Gmbh Fahrzeugscheinwerfer für kurvenlicht
DE102004011090B4 (de) * 2004-03-06 2007-01-04 Daimlerchrysler Ag Scheinwerfer für Fahrzeuge
DE102004050680B4 (de) * 2004-10-18 2017-11-23 Volkswagen Ag Reflektor mit einer Glühlampenfassung für einen Fahrzeugscheinwerfer
DE102005025481A1 (de) * 2005-06-03 2006-12-07 Audi Ag Beleuchtungseinrichtung für ein Kraftfahrzeug
US7578605B1 (en) * 2006-09-06 2009-08-25 Patrick Stuart Mullins Light shaping reflector system and method of manufacture and use
US20090185382A1 (en) * 2008-01-18 2009-07-23 Ekpac Taiwan Limited Light Cover Structure
US20100053988A1 (en) * 2008-08-29 2010-03-04 Strazzanti Michael A Vehicle Projector Lamp
EP2327926B2 (fr) * 2009-11-25 2016-12-14 Hella KGaA Hueck & Co. Unité de lampe pour véhicules et procédé de montage
JP5535663B2 (ja) * 2010-01-14 2014-07-02 株式会社小糸製作所 車両用ヘッドランプ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1694593A (en) * 1926-07-29 1928-12-11 Graf Lite Corp Lamp
DE3516812A1 (de) * 1985-05-10 1986-11-13 Hella KG Hueck & Co, 4780 Lippstadt Abgeblendeter fahrzeugscheinwerfer
US4797790A (en) * 1985-05-10 1989-01-10 Westfalische Metall Industrie Kg, Hueck & Co. Dimmed motor vehicle headlight
DE3519271C1 (de) * 1985-05-30 1986-08-28 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Abgeblendeter Fahrzeugscheinwerfer nach dem Projektionsprinzip
DE3529546C1 (de) * 1985-08-17 1987-02-05 Hella Kg Hueck & Co Abgeblendeter Fahrzeugscheinwerfer mit einem ellipsoidfoermigen Reflektor

Also Published As

Publication number Publication date
US4922386A (en) 1990-05-01
ES2049282T3 (es) 1994-04-16
DE58906974D1 (de) 1994-03-24
EP0355528A3 (en) 1990-12-19
DD284080A5 (de) 1990-10-31
EP0355528A2 (fr) 1990-02-28
DE3827594A1 (de) 1990-02-15
DE3827594C2 (fr) 1991-10-24

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