EP0984222B1 - Kraftfahrzeugscheinwerfer mit querliegender Lampe und mit verbesserten Lampenmontagemitteln - Google Patents

Kraftfahrzeugscheinwerfer mit querliegender Lampe und mit verbesserten Lampenmontagemitteln Download PDF

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Publication number
EP0984222B1
EP0984222B1 EP99401794A EP99401794A EP0984222B1 EP 0984222 B1 EP0984222 B1 EP 0984222B1 EP 99401794 A EP99401794 A EP 99401794A EP 99401794 A EP99401794 A EP 99401794A EP 0984222 B1 EP0984222 B1 EP 0984222B1
Authority
EP
European Patent Office
Prior art keywords
lamp
headlight according
mirror
adaptation
axis
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
EP99401794A
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English (en)
French (fr)
Other versions
EP0984222A1 (de
Inventor
Maurice Montet
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.)
Valeo Vision SAS
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Valeo Vision SAS
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Filing date
Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP0984222A1 publication Critical patent/EP0984222A1/de
Application granted granted Critical
Publication of EP0984222B1 publication Critical patent/EP0984222B1/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
    • F21S41/50—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
    • 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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/196—Wire spring attachments

Definitions

  • the present invention relates generally to motor vehicle headlamps, and more particularly to a headlamp equipped with a lamp whose axis is oriented perpendicularly to the optical axis of its mirror.
  • the background zone of the mirror becomes usable for the formation of the beam, which is particularly advantageous in the case of mirrors capable of generating beams of the required photometry, such as cut-off beams, in themselves. particular fog beams.
  • Another advantage of this type of known projector is that access to the lamp for its replacement, from above, or from the side of the projector, or even from below, can be facilitated in certain types of configurations.
  • Document FR-A-2 701 539 gives an example of such a projector.
  • This known projector however has the disadvantage of requiring, for the mounting of the lamp, a special lamp holder which is mounted on appropriate arrangements of the mirror and which has clean facilities for receiving the lamp.
  • Such a lamp holder can be visible through the projector glass, and impair its appearance when turned off.
  • the present invention aims to overcome the drawbacks of the state of the art, and to provide a transverse lamp projector in which the lamp can be mounted directly on appropriate arrangements of the mirror and can be easily replaced, this without compromising or making particularly delicate realization of this mirror by molding.
  • the present invention proposes a motor vehicle headlamp, comprising a lamp mounted in a mirror and a closure glass, the lamp having support arrangements in a plane perpendicular to its axis and being mounted in the mirror with its axis perpendicular to an optical axis of the mirror, and the mirror being made by injecting plastic material by being demolded in a direction parallel to said optical axis, and the mirror having at least one cheek adjacent to a bottom zone, characterized in that a hole of lamp is formed directly in said cheek, in that an outer surface of a wall of the mirror surrounding the lamp hole has relative to the demolding direction a clearance angle, and in that it is provided between said surface and said support arrangements of the lamp of the adaptation means forming for said arrangements supporting the lamp support surfaces extending in a plane parallel to said optical axis.
  • a projector which comprises a lamp 10 and a mirror 20, and, as is well known and not shown, an ice and optionally a housing.
  • the lamp 10 comprises a filament 11 along its axis inside a bulb 12, and a base 13, a feed connector 14 also being illustrated.
  • the mirror comprises a bottom portion 21 adapted to cooperate with the lamp to generate a beam of desired photometry, for example a fog beam, and two cheeks 22, 23. It is in this case side cheeks, but it could be also upper and lower cheeks.
  • the embodiment of the mirror by molding involves the use of a mold cavity and a mold punch whose surfaces have relative to the demolding direction a relief angle, which is here revealed by the inclination of the cheeks 22 and 23 relative to the optical axis xx of the mirror which corresponds to the demolding direction.
  • the lamp holder 200 is defined in the first place by particular arrangements of molding during the manufacture of the mirror. These arrangements essentially comprise a cavity whose bottom is defined by a wall 201 at a draft angle of eg 7 ° and further delimited by a side wall 202 in the general shape of "U".
  • a through opening 204 for the passage of the lamp, the opening of which dimension is such that the bottom wall 201 forms a shoulder substantially all around it.
  • the bottom wall 201 also has localized around the opening 204 three discrete support pads 2011, 2012 and 2013 for three reference projections provided on the collar of a standard lamp such as a lamp type " H1 ",” H4 "or” H7 ".
  • These three support pads extend in a common plane which is as rigorously as possible to the optical axis xx of the mirror, and thanks to the fact that they each occupy a limited area, it remains possible to unmold the mirror despite the fact that absence of clearance angle at the surfaces of these pads.
  • the support pads 2011 and 2012 are situated at the curved portion of the U-shaped wall 202, while the third support pad 2013 is located at the level of the part of the bottom wall 201 adjacent to the bottom 21 of the mirror.
  • the angular positions of these pads relative to the center of the lamp opening 204 are chosen according to the lamp type, to correspond with reference bosses or the like provided on the lamp flange.
  • a recess 2021 intended to receive, as shown in particular in FIG. 3, a bracket 151 of a concealer 15 intended to be placed in front of the lamp to avoid the direct light emission, the lug 151 being fixed by means of a screw or pin 16 engaged in a hole 2027 formed at the bottom of the recess 2021 during molding.
  • a protuberance intended for the coding of the lamp here an "H7" type lamp
  • the tab 151 of the shield has at its outer end a portion 152 curved at 180 ° to form jointly with the outer face of the cheek 22 a retaining bearing a lock pin 300 of the lamp.
  • This pin made traditionally by folding a wire spring, comprises two branches extending from the two ends of an attachment section 305 housed in the aforementioned bearing, each of these two branches having a section for maneuvering and locking 301 essentially straight and ending at the free end of the branch by a terminal section 302 curved at 180 °. Between the section 301 and the attachment section 305 is provided in each branch a bearing section consisting of two subsections 303, 304 together defining a "V" whose apex is intended to abut against the outside the flange 13 of the lamp to ensure its locking in position.
  • Unlocking the pin 300 is performed simply by manually bringing the ends of its two branches together, to clear the sections 301 of their respective notches 2025.
  • a lamp holder ensures a positioning and a very satisfactory maintenance of the lamp, and this despite clearance angles required for demolding.
  • Figures 6 to 8 illustrate an alternative embodiment of the invention for improving the positioning accuracy of the lamp 10 transversely to its axis.
  • the tab 151 for attaching the occluder also has, with respect to the previous embodiment, an elastic tongue 153 made by cutting and permanent deformation, the cutting of this tongue being for example made in the continuity of the contour of the hole 154 for the screw or pin 16, between this hole and the occluder 15 in the longitudinal direction of the tab 151.
  • the tab 153 is deformed inwardly so as to be elastically applied against the edge of the flange 13 of the lamp at this location.
  • the opening 204 for the lamp is shaped, in its region diametrically opposed to the tab 151 of the concealer, so as to have two radial support faces in "V", respectively 2015 and 2016, defined by the wall 201 surrounding the opening.
  • the tongue 153 by biasing the flange 13 towards these bearing faces (according to the arrow F in FIG. 8), performs a referencing of the position of the flange 13 of the lamp in the direction transverse to the axis of the lamp. It is therefore sufficient in this case, to ensure the positioning of the lamp with the required accuracy, particularly care during the design of the reflector mold the position of these surfaces relative to the bottom surface of the mirror.
  • the fixation of the lamp is no longer performed by a locking pin, but by a bayonet mechanism.
  • the region of the mirror for mounting the lamp is similar to that described with reference to the preceding figures, except that the opening 204 for the lamp is bordered by the wall 201 which forms a shoulder 201 completely smooth and plane , inclined along the clearance axis (typically 7 °) necessary for demolding.
  • the wall 201 is thus devoid here of the support pads of the previous embodiment.
  • the lamp holder comprises a generally cylindrical metal element, illustrated in FIGS. 9 and 10, generally designated by reference numeral 500.
  • This element in the developed state (FIG. 9), comprises a rectilinear upper edge 501 and a sinuous-shaped lower edge 501 'intended, after shaping the element according to a circular generatrix, to form a circle contained in a plane inclined at 7 ° with respect to the plane containing the circle formed during this same shaping by the upper edge 501.
  • the element 500 furthermore comprises three bearing lugs 502, 503 and 504 intended to be bent outwards at 90 ° so as to form three support pads for the lamp, as well as three notches 505 in the general shape of "L", typical of a Bayonet mount.
  • the shaping of the element 500 also involves folding about 90 ° along lines that separate an area 512 and two edge areas 510, 511, so as to form in the shaped element a portion protruding outwardly, intended to fit tightly in a recess of the type of recess 2021 described above, this to ensure, when mounting the element on the reflector, the indexing of its angular position.
  • the edge 501 'of the volume element comes to bear against the wall 201 oriented along the draft angle, then the upper edge 501 of the element forms a circle which extends into a plane perpendicular to the axis of the element 500, itself perpendicular to the optical axis of the mirror.
  • the lamp based on the three support lugs 502, 503 and 504 disposed in this same plane, will therefore adopt in the mirror the correct orientation.
  • the shaping of the element 500 is carried out by rolling the flat metal sheet illustrated in FIG. 9, the matching of the free ends of this sheet at their level. meeting being provided here by fingers 506 and notches 507 mutually nested.
  • the orifice 509 is intended to be traversed by a screw or pin 16 engaged in a hole such as the hole 2027 described above, and that diametrically opposed to this orifice 509 is a hole more large 508 for the passage of a screwdriver for the screw 16.
  • FIG. 11 illustrates a variant of this embodiment, according to which the lower circle of the element 500, as defined by its edge 501 ', can not rest on the plane wall 201 inclined according to the draft angle , but on a number of studs, including in particular two studs 2017 and 2018.
  • These studs may be, as for the studs 2011 to 2013 of the first embodiment, in a plane parallel to the optical axis of the mirror, in which case the element 500 is modified to assume the shape of a cylinder of any height.
  • FIG. 12 illustrates another variant embodiment, which relates to the element 500. It has the same arrangements as those of FIG. 9, designated by the same reference signs, but the union of the two ends of the element when of its formatting cylindrical is performed not at the opening 508 for the screwing tool, but at the wall 512 of the recess. In this case, the screw 16 is useful in maintaining the element 500 in the closed position on itself.

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  • 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)

Claims (15)

  1. Kraftfahrzeugscheinwerfer, mit einer in einem Reflektor (20) angebrachten Lampe (10) und einer Abschlussscheibe, wobei die Lampe über Einrichtungen (13) zur Anlage in einer zu ihrer Achse lotrecht verlaufenden Ebene verfügt und in dem Reflektor mit ihrer Achse lotrecht zu einer optischen Achse (x-x) des Reflektors angebracht ist, und wobei der Reflektor durch Kunststoffspritzgießen ausgeführt und parallel zu der optischen Achse entformt ist, und wobei der Reflektor wenigstens eine einem Bodenbereich (21) benachbarte Wandung (22) besitzt und eine Lampenöffnung (204) unmittelbar in der Wandung ausgebildet ist,
    dadurch gekennzeichnet, dass eine Außenseite einer die Lampenöffnung umgebenden Wand (201) des Reflektors bezüglich der Entformungsrichtung einen Freiwinkel aufweist, und dass zwischen dieser Seite und den Lampenanlageeinrichtungen Anpassungsmittel (2011, 2012, 2013; 500, 2017, 2018) vorgesehen sind, die für die Lampenanlageeinrichtungen Anlageflächen bilden, die sich in einer Ebene parallel zur optischen Achse erstrecken.
  2. Scheinwerfer nach Anspruch 1,
    dadurch gekennzeichnet, dass die Lampenöffnung (204) und die sie umgebende Fläche in einer in der Wandung ausgebildeten Vertiefung gebildet sind.
  3. Scheinwerfer nach Anspruch 2,
    dadurch gekennzeichnet, dass die Vertiefung von einer allgemein U-förmigen Wand (202) begrenzt ist.
  4. Scheinwerfer nach Anspruch 3,
    dadurch gekennzeichnet, dass die allgemein U-förmige Wand wenigstens eine Unverwechselbarkeitseinrichtung (2022) zum winkelgerechten Positionieren der Lampe besitzt.
  5. Scheinwerfer nach einem der Ansprüche 3 oder 4,
    dadurch gekennzeichnet, dass die allgemein U-förmige Wand (202) wenigstens einen Rücksprung (2021) besitzt, der eine Klammer (151) zur Befestigung eines Abschatters (15) der Lampe aufzunehmen vermag.
  6. Scheinwerfer nach Anspruch 5,
    dadurch gekennzeichnet, dass die Befestigungsklammer (151) ein Teil aufweist, welches eine elastische Zunge (153) bildet, die die Lampe in eine Richtung quer zur Achse der Lampe zu drängen vermag.
  7. Scheinwerfer nach einem der Ansprüche 1 bis 6,
    dadurch gekennzeichnet, dass die Anpassungsmittel eine Vielzahl von Stufen (2011, 2012, 2013) aufweisen, die an der Außenseite vorspringen und bei der Herstellung des Reflektors angeformt werden.
  8. Scheinwerfer nach Anspruch 7,
    dadurch gekennzeichnet, dass er auch ein Organ (300) zum Halten der Lampe aufweist, das das Andrücken der Lampenanlageeinrichtungen auf den Stufen gewährleistet.
  9. Scheinwerfer nach Anspruch 8 in Verbindung mit einem der Ansprüche 5 oder 6,
    dadurch gekennzeichnet, dass das Halteorgan (300) von einer Nadel gebildet ist, die an der Befestigungsklammer (151) des Abschatters angelenkt ist.
  10. Scheinwerfer nach einem der Ansprüche 1 bis 6,
    dadurch gekennzeichnet, dass die Anpassungsmittel ein allgemein zylindrisches Anpassstück (500) aufweisen, das die Lampenöffnung (204) umgibt und einen ersten an der Außenseite anliegenden Rand (501') und einen zweiten entgegengesetzt angeordneten Rand (501) besitzt, der für die Lampenanlageeinrichtungen Auflageflächen (502, 503, 504) bildet.
  11. Scheinwerfer nach Anspruch 10,
    dadurch gekennzeichnet, dass der erste (501') und der zweite (501) Rand des Anpassstücks im Wesentlichen durch Kreise gebildet sind, die in Ebenen liegen, die zueinander in einem dem Freiwinkel entsprechenden Winkel geneigt sind.
  12. Scheinwerfer nach Anspruch 10,
    dadurch gekennzeichnet, dass der erste Rand (501') des Anpassstücks auf den angeformten und an der Außenseite vorspringenden Stufen (2017, 2018) aufliegt.
  13. Scheinwerfer nach einem der Ansprüche 10 bis 12,
    dadurch gekennzeichnet, dass das Anpassstück (500) Einkerbungen (505) zur Montage der Lampe mit einem Bajonett-Mechanismus aufweist.
  14. Scheinwerfer nach einem der Ansprüche 10 bis 13,
    dadurch gekennzeichnet, dass sich die durch den zweiten Rand (501) des Anpassstücks (500) gebildeten Auflageflächen (502, 503, 504) in einer Ebene lotrecht zur Achse dieses Stücks erstrecken.
  15. Scheinwerfer nach einem der Ansprüche 10 bis 14,
    dadurch gekennzeichnet, dass das Anpassstück (500) durch Rollbiegen eines dünnen Metallblechs ausgeführt ist.
EP99401794A 1998-09-04 1999-07-16 Kraftfahrzeugscheinwerfer mit querliegender Lampe und mit verbesserten Lampenmontagemitteln Expired - Lifetime EP0984222B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9811078 1998-09-04
FR9811078A FR2783038B1 (fr) 1998-09-04 1998-09-04 Projecteur de vehicule automobile a lampe transversale, equipe de moyens perfectionnes de montage de la lampe

Publications (2)

Publication Number Publication Date
EP0984222A1 EP0984222A1 (de) 2000-03-08
EP0984222B1 true EP0984222B1 (de) 2006-05-03

Family

ID=9530129

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Application Number Title Priority Date Filing Date
EP99401794A Expired - Lifetime EP0984222B1 (de) 1998-09-04 1999-07-16 Kraftfahrzeugscheinwerfer mit querliegender Lampe und mit verbesserten Lampenmontagemitteln

Country Status (6)

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US (1) US6250790B1 (de)
EP (1) EP0984222B1 (de)
JP (1) JP2000082305A (de)
DE (1) DE69931117T2 (de)
ES (1) ES2264247T3 (de)
FR (1) FR2783038B1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2811408B1 (fr) * 2000-07-07 2002-10-18 Valeo Vision Projecteur du genre elliptique notamment pour eclairage de route a photometrie basse amelioree
US6997583B2 (en) * 2002-05-10 2006-02-14 Goodrich Hella Aerospace Lighting Systems Gmbh Lamp for a vehicle, in particular reading lamp for an aircraft
EP1605202B1 (de) * 2004-06-09 2016-10-05 Valeo Vision Multifunktionales Scheinwerfergerät
JP2006019049A (ja) * 2004-06-30 2006-01-19 Ichikoh Ind Ltd 車両用灯具
US7712948B2 (en) * 2005-02-02 2010-05-11 Koninklijke Philips Electronics N.V. Light-source module and holder therefor
US8760589B2 (en) * 2007-05-03 2014-06-24 Seiko Epson Corporation Retention of a replaceable part within a device
DE202012004090U1 (de) * 2012-04-24 2012-05-31 Automotive Lighting Reutlingen Gmbh Lampenträger und Kraftfahrzeugscheinwerfer mit einem solchen Lampenträger

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2701539B1 (fr) 1993-02-12 1995-05-12 Valeo Vision Dispositif d'éclairage ou de signalisation pour automobile à moyens perfectionnés de montage de la lampe.
US5727863A (en) * 1995-06-15 1998-03-17 Grimes Aerospace Company Aircraft wing inspection light system

Also Published As

Publication number Publication date
ES2264247T3 (es) 2006-12-16
JP2000082305A (ja) 2000-03-21
FR2783038B1 (fr) 2000-12-01
FR2783038A1 (fr) 2000-03-10
EP0984222A1 (de) 2000-03-08
DE69931117T2 (de) 2007-04-05
DE69931117D1 (de) 2006-06-08
US6250790B1 (en) 2001-06-26

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