EP0200928B1 - Abgeblendeter Fahrzeugscheinwerfer - Google Patents

Abgeblendeter Fahrzeugscheinwerfer Download PDF

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Publication number
EP0200928B1
EP0200928B1 EP86104625A EP86104625A EP0200928B1 EP 0200928 B1 EP0200928 B1 EP 0200928B1 EP 86104625 A EP86104625 A EP 86104625A EP 86104625 A EP86104625 A EP 86104625A EP 0200928 B1 EP0200928 B1 EP 0200928B1
Authority
EP
European Patent Office
Prior art keywords
diaphragm
vehicle headlight
headlight according
dipped
webs
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
EP86104625A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0200928A3 (en
EP0200928A2 (de
Inventor
Günter Brödling
Franz Feyerabend
Peter Hubert
Franz Krähling
Wolfgang Peitz
Karlernst Sewing
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
Priority to AT86104625T priority Critical patent/ATE70119T1/de
Publication of EP0200928A2 publication Critical patent/EP0200928A2/de
Publication of EP0200928A3 publication Critical patent/EP0200928A3/de
Application granted granted Critical
Publication of EP0200928B1 publication Critical patent/EP0200928B1/de
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
    • F21S41/20—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
    • F21S41/40—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

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 for adjustment, the upper, essentially horizontal edge of which creates the light / dark boundary.
  • This embodiment has the advantage that the diaphragm edge generating the light / dark boundary can be set in a precisely defined position relative to the focal point of the converging lens.
  • a dimmed vehicle headlight of this type is known from DE-GM 84 30 629, in which the frame and the panel are made in two parts and in the die casting process.
  • the frame has the shape of a table and firmly connects the reflector and the converging lens to one unit.
  • the screen On two legs of the table, the screen can be moved in the direction of the optical axis and, after adjustment, can be fixed on the legs of the table by means of screws.
  • the adjustment of the panel is too cumbersome and also too expensive due to the high labor costs.
  • improper storage and installation of the panel can damage the panel edge. It is also disadvantageous to produce the panel and the frame in separate tools and in the relatively expensive die casting process.
  • the object of the invention is to improve the vehicle headlights described in the preamble in such a way that the cumbersome installation of the panel is eliminated and possible damage to the panel edge is largely avoided without increasing the manufacturing outlay and thus the manufacturing costs.
  • the diaphragm can be adjusted for adjustment around the bending line of the web angled towards the optical axis.
  • the frame which has a high rigidity due to the cup shape, carries the relatively large mass of the lens without vibration.
  • the free end section of the web which serves as a diaphragm, is adjustable for adjustment about a predetermined bending line, which is formed by a section of the web that is weakened in cross section. It is expedient here if the region of the web forming the predetermined bending line is weakened by at least one opening made in the web. This makes the cover simple and with little effort easily pivotable around the predetermined bending line in the optimal position to the rigid unit reflector converging lens.
  • the diaphragm can be fixed on the webs serving as support elements after adjustment.
  • This can e.g. B. by screwing, riveting, soldering or welding.
  • welding is an option, since welding can be carried out easily and quickly and also results in a secure and permanent, firm connection.
  • Laser welding is particularly advantageous in automatic production because the contactless welding allows the aperture to be fixed in the precisely set position.
  • a further advantage is if the diaphragm has a tongue angled towards the converging lens at its lateral edges and when the diaphragm is adjusted, the tongues of the diaphragm with their outward-facing surfaces slide along one edge of a support element and after adjusting the diaphragm the edge of the respective support element can be fixed by welding. In the case of automatic production, this allows the welding device to be aligned precisely with the welding point formed by the edge of the respective support element.
  • the webs of the diaphragm serving as support elements each have a cut-out, recessed inward approach, which rests with its free end section on the outwardly facing surface of the respective tongue.
  • the shape of the frame means that distances between the webs serving as support elements and the respective tongue of the panel can be bridged.
  • the inwardly projecting lugs of the webs and the panel at the free ends of the tongues each have a run-up slope.
  • the run-on bevels serve to thread the screen between the adjacent support elements when the web serving as the screen is angled. Another advantage is when the diaphragm is at an acute angle to the plane running vertically to the optical axis after being bent. As a result, in the case of automatic production, the diaphragm is only ever to be pressed in the direction of the converging lens or the reflector during adjustment by a device.
  • the web forming the diaphragm is made flat, the transition from the cylindrical outer surface to the flat diaphragm being produced by a flare. It is expedient if the straight bending line of the web angled towards the reflector touches the arcuate line of the flanging or is at least arranged in its vicinity. Such a flat web is angled easily and simply towards the optical axis. In addition, the resulting course of the diaphragm edge in a plane perpendicular to the optical axis is optimal.
  • a vehicle headlight which consists essentially of the ellipsoid reflector 1 and one between the converging lens 2 and the reflector 1 Aperture 4 exists.
  • 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 opening 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 arranged in the focal point of the converging lens 2.
  • a cup-shaped frame 9 made of sheet metal is fastened to the outer peripheral reflector edge 14 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.
  • the converging lens 2 inserted from the open bottom surface 10 lies on radially inwardly projecting lugs 30 of the cup 9 and is through in the cup a snap ring 15, which presses into a gap formed by the converging lens 2 and the inwardly tapering part 11 of the cup 9.
  • the free end section of the web 19, which forms the diaphragm 4 is, as shown in dashed lines in the drawing, after being bent toward the optical axis at an acute angle ⁇ to the plane running vertically to the optical axis.
  • the aperture 4 laterally has a tongue 26 angled toward the converging lens 2, which with its outwardly facing surface 27 bears against the edge 28 of a shoulder 29, which is cut free by a web 17 adjacent to the aperture 4 and bent back inwardly Rag is formed.
  • the diaphragm 4 is adjusted, the outwardly facing surfaces 27 of the tongues 26 slide along the respective edge 28 of the tabs 29.
  • the edges 28 of the tabs 29 are fixed to the outwardly facing surfaces 27 of the tongues 26 by laser welding. This is very advantageous in the case of automatic production, since the laser welding device does not have to track the adjusted aperture 4, but is always aligned with the fixed edges 28 of the tabs 29.

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)
  • Glass Compositions (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
EP86104625A 1985-05-10 1986-04-04 Abgeblendeter Fahrzeugscheinwerfer Expired - Lifetime EP0200928B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86104625T ATE70119T1 (de) 1985-05-10 1986-04-04 Abgeblendeter fahrzeugscheinwerfer.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853516813 DE3516813A1 (de) 1985-05-10 1985-05-10 Abgeblendeter fahrzeugscheinwerfer
DE3516813 1985-05-10

Publications (3)

Publication Number Publication Date
EP0200928A2 EP0200928A2 (de) 1986-11-12
EP0200928A3 EP0200928A3 (en) 1989-03-15
EP0200928B1 true EP0200928B1 (de) 1991-12-04

Family

ID=6270330

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86104625A Expired - Lifetime EP0200928B1 (de) 1985-05-10 1986-04-04 Abgeblendeter Fahrzeugscheinwerfer

Country Status (7)

Country Link
EP (1) EP0200928B1 (ja)
JP (1) JPS61259402A (ja)
AT (1) ATE70119T1 (ja)
AU (1) AU576082B2 (ja)
DD (1) DD247259A5 (ja)
DE (1) DE3516813A1 (ja)
ES (1) ES294068Y (ja)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3516812A1 (de) * 1985-05-10 1986-11-13 Hella KG Hueck & Co, 4780 Lippstadt Abgeblendeter fahrzeugscheinwerfer
DE3529546C1 (de) * 1985-08-17 1987-02-05 Hella Kg Hueck & Co Abgeblendeter Fahrzeugscheinwerfer mit einem ellipsoidfoermigen Reflektor
JPS642301U (ja) * 1987-06-25 1989-01-09
JPH03130103U (ja) * 1990-04-10 1991-12-26
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
DE4124374A1 (de) * 1991-07-23 1993-01-28 Hella Kg Hueck & Co Scheinwerfer fuer fahrzeuge
DE4305633A1 (de) * 1992-02-24 1993-10-07 Valeo Vision Verbesserung an Linsen-Scheinwerfern
DE4233030C2 (de) * 1992-10-01 1995-03-30 Hella Kg Hueck & Co Abgeblendeter Fahrzeugscheinwerfer
FR2753148B1 (fr) * 1996-09-06 1998-12-04 Valeo Vision Projecteur pour vehicule automobile a assemblage simplifie
FR2767183B1 (fr) * 1997-08-05 1999-10-22 Holophane Systeme optique destine a etre monte dans un boitier de phare de vehicule
DE19738831A1 (de) * 1997-09-05 1999-05-20 Hella Kg Hueck & Co Scheinwerfer für Fahrzeuge
FR2769688B1 (fr) * 1997-10-14 2000-03-10 Valeo Vision Projecteur elliptique a coupure attenuee
DE19829343A1 (de) 1998-07-01 2000-01-05 Volkswagen Ag Scheinwerferanordnung nach dem Projektionstyp für Kraftfahrzeuge
DE19829345B4 (de) 1998-07-01 2009-11-26 Volkswagen Ag Projektionsscheinwerfer für Kraftfahrzeuge
DE19841584A1 (de) 1998-09-11 2000-03-16 Hella Kg Hueck & Co Scheinwerfer und Verfahren zur Herstellung eines Scheinwerfers
DE19857439A1 (de) * 1998-12-12 2000-06-15 Hella Kg Hueck & Co Scheinwerfer
DE19908642A1 (de) * 1999-02-27 2000-12-21 Hella Kg Hueck & Co Scheinwerfer für Fahrzeuge
FR2775058B1 (fr) 1999-03-26 2001-05-18 Valeo Vision Projecteur a lentille, notamment pour vehicule automobile, comportant des moyens perfectionnes de montage de la lentille
DE19933414B4 (de) * 1999-07-16 2005-02-03 Automotive Lighting Reutlingen Gmbh Scheinwerfer für Kraftfahrzeuge
JP3961737B2 (ja) * 2000-02-29 2007-08-22 株式会社小糸製作所 車両用灯具およびその製造方法
JP3913435B2 (ja) * 2000-02-29 2007-05-09 株式会社小糸製作所 車両用灯具の製造方法
DE102004050744A1 (de) * 2004-10-19 2006-05-24 Hella Kgaa Hueck & Co. Scheinwerfer für Fahrzeuge und Herstellungsverfahren
DE102005002685A1 (de) * 2005-01-20 2006-08-03 Hella Kgaa Hueck & Co. Projektionsscheinwerfer für Fahrzeuge
JP4527165B2 (ja) * 2008-08-08 2010-08-18 株式会社小糸製作所 車両用前照灯
DE102012102435A1 (de) * 2012-03-22 2013-09-26 Hella Kgaa Hueck & Co. Scheinwerfer für Fahrzeuge
EP2966344B1 (fr) 2014-06-30 2022-01-12 Valeo Vision Module optique a lentille pour projecteur de vehicule automobile
CZ2015224A3 (cs) 2015-03-30 2017-01-18 Varroc Lighting Systems, s.r.o. Způsob a zařízení pro redukci okrajů světelného obrazu světlometu a světlomet

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB450348A (en) * 1935-09-17 1936-07-15 Leslie Robert Morshead Improvements relating to the projection of light
US2338901A (en) * 1939-05-22 1944-01-11 Chiti Aroldo Vehicle lamp
US3737653A (en) * 1972-02-14 1973-06-05 Sylvania Electric Prod Automotive headlight
JPS6129123Y2 (ja) * 1977-12-29 1986-08-28
DE3241713A1 (de) * 1982-11-11 1984-05-17 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Abgeblendeter scheinwerfer fuer kraftfahrzeuge
FR2537249B1 (fr) * 1982-12-02 1987-12-31 Cibie Projecteurs Projecteur a faisceau coupe a reflecteur elliptique pour vehicule automobile
DE8430630U1 (de) * 1984-10-18 1985-02-07 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Abgeblendeter Fahrzeugscheinwerfer
DE8430629U1 (de) * 1984-10-18 1985-02-07 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Abgeblendeter fahrzeugscheinwerfer
DE3516812A1 (de) * 1985-05-10 1986-11-13 Hella KG Hueck & Co, 4780 Lippstadt Abgeblendeter fahrzeugscheinwerfer

Also Published As

Publication number Publication date
JPS61259402A (ja) 1986-11-17
ES294068U (es) 1986-11-01
DE3516813A1 (de) 1986-11-13
ES294068Y (es) 1987-07-16
AU5648986A (en) 1986-11-13
EP0200928A3 (en) 1989-03-15
JPH0348601B2 (ja) 1991-07-25
EP0200928A2 (de) 1986-11-12
DD247259A5 (de) 1987-07-01
DE3516813C2 (ja) 1987-11-19
AU576082B2 (en) 1988-08-11
ATE70119T1 (de) 1991-12-15

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