EP0936402A1 - Kraftfahrzeugscheinwerfer - Google Patents

Kraftfahrzeugscheinwerfer Download PDF

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Publication number
EP0936402A1
EP0936402A1 EP99102421A EP99102421A EP0936402A1 EP 0936402 A1 EP0936402 A1 EP 0936402A1 EP 99102421 A EP99102421 A EP 99102421A EP 99102421 A EP99102421 A EP 99102421A EP 0936402 A1 EP0936402 A1 EP 0936402A1
Authority
EP
European Patent Office
Prior art keywords
headlamp
reflector
cover
annular member
support member
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.)
Withdrawn
Application number
EP99102421A
Other languages
English (en)
French (fr)
Inventor
Flavio Vigna
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.)
Marelli Automotive Lighting Italy SpA
Original Assignee
Magneti Marelli SpA
Automotive Lighting Italia SpA
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 Magneti Marelli SpA, Automotive Lighting Italia SpA filed Critical Magneti Marelli SpA
Publication of EP0936402A1 publication Critical patent/EP0936402A1/de
Withdrawn legal-status Critical Current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
    • F21S41/47—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 present invention relates to a headlamp for automobile vehicles.
  • the present invention relates in particular to a dipped headlight comprising a reflector provided with a support member, a dimmer screen and a polyellipsoidal cover secured to the support member and/or to a spacer rigid with the reflector.
  • a headlamp for automobile vehicles comprising a reflector 31 having an optical axis 32, a lamp 33, a support body 34 for the lamp 33, a support member 35 and a cover 36, for instance of polyellipsoidal type, is shown overall by 30.
  • the support member 35 comprises an axial portion 36 secured at its end to the reflector 31, an annular support portion 37 and a dimmer body 38 adapted to intercept, when the headlamp 30 is on, the portion of light reflected from the lower half of the reflector 31, allowing the generation of a beam of light cut off above a cut-off line.
  • the cover is locked on the support member by relatively complex mechanical operations or by the use of supplementary components.
  • the object of the present invention to provide a headlamp for automobile vehicles which is free from the above-mentioned drawbacks and which, in particular, has a structure allowing the cover to be rapidly and reliably secured to the support member.
  • the present invention therefore relates to a headlamp for automobile vehicles comprising a reflector having an optical axis and defining a concavity, a lamp housed in this concavity, a support member rigid with the reflector and having a dimmer body adapted to intercept part of the light transmitted by the lamp, and a cover rigid with the support member and adapted to direct the light reflected by the reflector in a direction generally parallel to the optical axis, characterised in that the support member comprises an annular member and in that the cover can be coupled to this annular member.
  • a headlamp for automobile vehicles comprising a reflector 2, a lamp 3, a support body 4 for the lamp 3, a support member 5 and a cover 6 which is of polyellipsoidal type in the non-limiting embodiment shown, is shown overall by 1.
  • the headlamp 1 further comprises a retaining structure 7 adapted to house the reflector 2.
  • the reflector 2 is substantially of ellipsoidal shape, has an optical axis 10 and a reflecting inner surface 2a adapted to reflect the light transmitted by the lamp 3 to the exterior of the headlamp 1.
  • the support body 4 is secured to the rear portion of the reflector 2 (the rear and front portions of a member being understood, in this case and below, as the portion facing in the direction opposite to or in the same direction respectively as the direction of light projection) and supports the lamp 3 within the concavity formed by the reflector 2 in a position aligned with the axis 10.
  • the support member is obtained from drawn and bent metal sheet and comprises a support ring 12 and a dimmer body 11 having the shape of a quarter of a sphere.
  • the ring 12 supports the dimmer body 11 along one of the two plane edges of the latter.
  • the ring 12 is substantially cup-shaped and is formed by a radial portion 12a and by an axial portion 12b; the latter extends from the outer edge of the radial portion 12a and on the opposite side with respect to the dimmer body 11.
  • the radial portion 12a is disposed in abutment against a front peripheral edge 13 of the reflector 2.
  • the ring 12 is provided with three tongues 14a, 14b and 14c (Fig. 2) which also extend from the outer edge of the radial portion 12a, but in an opposite direction with respect to the axial portion 12b and are adapted to allow the ready application and immediate centring of the support member 5 on the reflector 2.
  • the three tongues, shown by 14a, 14b and 14c, are disposed in a peripheral position on the ring 12 and have a profile complementary with the profile of corresponding projections 15 provided rigidly on the outer surface of the reflector 2.
  • the support member 5 is positioned such that the tongues 14a-14c are disposed in contact with the projections 15: the tongues 14a-14c are successively folded about the projections 15 as shown in Fig. 1 for the tongue 14a.
  • the dimmer body 11 With the support member 5 mounted in this way on the reflector 2, the dimmer body 11 is disposed below a plane passing through the axis 10 and at right angles to the plane of Fig. 1. In this position, the dimmer body 11 is adapted to intercept, when the headlamp 1 is on, the portion of light reflected by that half of the reflecting surface 2a disposed below this plane, enabling the generation of a beam of light cut off below a cut-off line.
  • the ring 12 is further provided with a pair of substantially L-shaped brackets 16 (Fig. 2) which are disposed on opposite sides of the tongue 14a, extend in parallel to one another and to the tongue 14a and enable, in a manner which is not shown, the support member 5 to be secured to the structure 7 of the headlamp 1.
  • the ring 12 is lastly provided with three flexible flanges 17 disposed at 120o from one another, extending axially from a front peripheral edge of the axial portion 12b and folded radially inwards.
  • the flanges 17 are adapted, as will be explained below, to couple the support member 5 to the cover 6.
  • the cover 6 is centred along the optical axis 10 and is adapted to direct the light reflected by the reflector 2 in a direction substantially parallel to this optical axis 10.
  • the cover 6 rigidly comprises a collar 20 having an outer diameter slightly smaller than the inner diameter of the axial portion 12b of the ring 12.
  • the collar 20 is provided with six equally spaced notches 21 which bound the same number of teeth 22 between one another.
  • This configuration of the cover 6 is designed to enable, as a result also of the presence of the flexible flanges 17 on the ring 12, the bayonet connection of the cover 6 to the support member 5.
  • the cover 6 is disposed facing the support member 5 with its convexity facing away from this support member 5 and angularly oriented to cause the angular position of the flanges 17 to coincide with that of the respective notches 21.
  • the collar 20 is then disposed within the radial portion 12b by passing the flanges 17 through the respective notches 21, after which the cover 6 is rotated, in one or other direction, until the flanges 17 are "hooked" on respective teeth 22. Any rotation, arising from vibration stresses on the cover 6, with respect to the support member 5, is prevented by known systems not used on bayonet couplings.
  • the cover 6 can be mounted on the screening body 5 in a particularly simple and rapid way.
  • the radial portion 12a has three projections 23 (only one of which is shown in Fig. 1) projecting from the front surface of this radial portion 12a, angularly spaced from one another and defining the same number of support points for the collar 20.
  • the axial portion 12b of the ring 12 is provided with three inwardly projecting ribs 24 (Fig. 2), angularly spaced from one another and defining the same number of radial support points for the collar 20.
  • the headlamp 1 of the present invention has the following advantages.
  • the coupling formed in this way while particularly secure, does not exert structural stresses on the cover, thereby ensuring its integrity.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP99102421A 1998-02-10 1999-02-08 Kraftfahrzeugscheinwerfer Withdrawn EP0936402A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT98TO000102A ITTO980102A1 (it) 1998-02-10 1998-02-10 Proiettore per autoveicoli
ITTO980102 1998-02-10

Publications (1)

Publication Number Publication Date
EP0936402A1 true EP0936402A1 (de) 1999-08-18

Family

ID=11416404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99102421A Withdrawn EP0936402A1 (de) 1998-02-10 1999-02-08 Kraftfahrzeugscheinwerfer

Country Status (2)

Country Link
EP (1) EP0936402A1 (de)
IT (1) ITTO980102A1 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2836714A1 (fr) * 2002-03-01 2003-09-05 Holophane Projecteur comprenant une lentille en verre et un support de lentille en matiere plastique et outil de surmoulage du support sur la lentille
EP1684007A2 (de) 2005-01-20 2006-07-26 Hella KG Hueck & Co. Projektionsscheinwerfer für Fahrzeuge
EP2157368A1 (de) * 2008-08-21 2010-02-24 Peugeot Citroën Automobiles Société Anonyme Optische Einheit für Fahrzeug, mit einer an dem Leuchtgehäuse aufgehängten Blende
EP2385298A1 (de) * 2010-05-07 2011-11-09 Hella KGaA Hueck & Co. Projektionsmodul für Fahrzeuge
DE102012102922A1 (de) * 2012-04-04 2013-10-10 Hella Kgaa Hueck & Co. Abdeckblende
JP2014127298A (ja) * 2012-12-26 2014-07-07 Ichikoh Ind Ltd 車両用灯具
WO2014185511A1 (ja) * 2013-05-17 2014-11-20 市光工業株式会社 車両用灯具
JP2014229346A (ja) * 2013-05-17 2014-12-08 市光工業株式会社 車両用灯具
JP2014229347A (ja) * 2013-05-17 2014-12-08 市光工業株式会社 車両用灯具
EP3567305A1 (de) * 2018-05-08 2019-11-13 ZKW Group GmbH Lichtmodul für kraftfahrzeugscheinwerfer
DE102021134391A1 (de) 2021-12-22 2023-06-22 Marelli Automotive Lighting Reutlingen (Germany) GmbH Beleuchtungseinrichtung für ein Kraftfahrzeug und Montage von Bauteilen der Beleuchtungseinrichtung
US12000554B2 (en) 2021-12-22 2024-06-04 Marelli Automotive Lighting Reutlingen (Germany) GmbH Lighting apparatus for a motor vehicle and assembly of the components of the lighting apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537249A1 (fr) * 1982-12-02 1984-06-08 Cibie Projecteurs Projecteur a faisceau coupe a reflecteur elliptique pour vehicule automobile
EP0355529A2 (de) * 1988-08-13 1990-02-28 Hella KG Hueck & Co. Abgeblendeter Fahrzeugscheinwerfer nach dem Projektionsprinzip
DE4029123A1 (de) * 1989-09-13 1991-03-21 Koito Mfg Co Ltd Fahrzeugleuchteneinheit
DE19621254A1 (de) * 1996-05-25 1997-11-27 Bosch Gmbh Robert Scheinwerfer für Fahrzeuge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537249A1 (fr) * 1982-12-02 1984-06-08 Cibie Projecteurs Projecteur a faisceau coupe a reflecteur elliptique pour vehicule automobile
EP0355529A2 (de) * 1988-08-13 1990-02-28 Hella KG Hueck & Co. Abgeblendeter Fahrzeugscheinwerfer nach dem Projektionsprinzip
DE4029123A1 (de) * 1989-09-13 1991-03-21 Koito Mfg Co Ltd Fahrzeugleuchteneinheit
DE19621254A1 (de) * 1996-05-25 1997-11-27 Bosch Gmbh Robert Scheinwerfer für Fahrzeuge

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003074251A1 (fr) * 2002-03-01 2003-09-12 Holophane Projecteur comprenant une lentille en verre et un support de lentille en matiere plastique et outil de surmoulage du support sur la lentille
US7234851B2 (en) 2002-03-01 2007-06-26 Holophane S.A. Projector comprising a glass lens and a plastic lens support and tool for overmoulding the support of the lens
US7815478B2 (en) 2002-03-01 2010-10-19 Holophane S.A. Process of manufacturing a lamp assembly by overmolding a lens support over a portion of a lens
FR2836714A1 (fr) * 2002-03-01 2003-09-05 Holophane Projecteur comprenant une lentille en verre et un support de lentille en matiere plastique et outil de surmoulage du support sur la lentille
EP1684007A2 (de) 2005-01-20 2006-07-26 Hella KG Hueck & Co. Projektionsscheinwerfer für Fahrzeuge
DE102005002685A1 (de) * 2005-01-20 2006-08-03 Hella Kgaa Hueck & Co. Projektionsscheinwerfer für Fahrzeuge
EP2157368A1 (de) * 2008-08-21 2010-02-24 Peugeot Citroën Automobiles Société Anonyme Optische Einheit für Fahrzeug, mit einer an dem Leuchtgehäuse aufgehängten Blende
FR2935114A1 (fr) * 2008-08-21 2010-02-26 Peugeot Citroen Automobiles Sa Bloc avant de vehicule automobile, a ecran suspendu au masque
CN102252280B (zh) * 2010-05-07 2015-05-27 黑拉许克联合股份有限公司 用于汽车的投射模块
EP2385298A1 (de) * 2010-05-07 2011-11-09 Hella KGaA Hueck & Co. Projektionsmodul für Fahrzeuge
CN102252280A (zh) * 2010-05-07 2011-11-23 黑拉许克联合股份有限公司 用于汽车的投射模块
US8616743B2 (en) 2010-05-07 2013-12-31 Hella Kgaa Hueck & Co. Projection module for vehicles
DE102012102922A1 (de) * 2012-04-04 2013-10-10 Hella Kgaa Hueck & Co. Abdeckblende
JP2014127298A (ja) * 2012-12-26 2014-07-07 Ichikoh Ind Ltd 車両用灯具
WO2014185511A1 (ja) * 2013-05-17 2014-11-20 市光工業株式会社 車両用灯具
JP2014229346A (ja) * 2013-05-17 2014-12-08 市光工業株式会社 車両用灯具
JP2014229347A (ja) * 2013-05-17 2014-12-08 市光工業株式会社 車両用灯具
US10006602B2 (en) 2013-05-17 2018-06-26 Ichikoh Industries, Ltd. Lamp for vehicles
EP3567305A1 (de) * 2018-05-08 2019-11-13 ZKW Group GmbH Lichtmodul für kraftfahrzeugscheinwerfer
CN110454742A (zh) * 2018-05-08 2019-11-15 Zkw集团有限责任公司 用于机动车前大灯的光模块
DE102021134391A1 (de) 2021-12-22 2023-06-22 Marelli Automotive Lighting Reutlingen (Germany) GmbH Beleuchtungseinrichtung für ein Kraftfahrzeug und Montage von Bauteilen der Beleuchtungseinrichtung
EP4202291A1 (de) * 2021-12-22 2023-06-28 Marelli Automotive Lighting Reutlingen (Germany) GmbH Beleuchtungseinrichtung für ein kraftfahrzeug und montage von bauteilen der beleuchtungseinrichtung
US12000554B2 (en) 2021-12-22 2024-06-04 Marelli Automotive Lighting Reutlingen (Germany) GmbH Lighting apparatus for a motor vehicle and assembly of the components of the lighting apparatus

Also Published As

Publication number Publication date
ITTO980102A1 (it) 1999-08-10

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