EP0578552B1 - Kfz-Scheinwerfer mit einstellbarem Reflektor - Google Patents

Kfz-Scheinwerfer mit einstellbarem Reflektor Download PDF

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Publication number
EP0578552B1
EP0578552B1 EP93401734A EP93401734A EP0578552B1 EP 0578552 B1 EP0578552 B1 EP 0578552B1 EP 93401734 A EP93401734 A EP 93401734A EP 93401734 A EP93401734 A EP 93401734A EP 0578552 B1 EP0578552 B1 EP 0578552B1
Authority
EP
European Patent Office
Prior art keywords
reflector
face
seal
integral
lips
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
EP93401734A
Other languages
English (en)
French (fr)
Other versions
EP0578552A2 (de
EP0578552A3 (de
Inventor
Laurent Duchenne
Jacques Schiettecatte
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
Original Assignee
Valeo Vision SAS
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 Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP0578552A2 publication Critical patent/EP0578552A2/de
Publication of EP0578552A3 publication Critical patent/EP0578552A3/xx
Application granted granted Critical
Publication of EP0578552B1 publication Critical patent/EP0578552B1/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
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/50—Waterproofing
    • 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
    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors

Definitions

  • the present invention generally relates to headlamps in particular for motor vehicles, of the "optical unit” type, comprising an orientable reflector pivotally assembled on a support part mounted on a closing glass, and sealing means arranged between the reflector and said support part.
  • European patent EP 0 224 739 discloses a projector of this type according to the preamble of claim 1, comprising a reflector connected to an annular support by two pivoting bearings and able to pivot by means of an adjustment device around an axis of horizontal pivoting in the mounting position of the projector.
  • Said annular support is closed towards the exit of the light by a closing glass and has a part turned towards the reflector, facing a part of the reflector by covering it, an annular seal being disposed between said parts.
  • the overlapping surfaces have a generally cylindrical shape of revolution or not from their respective edge so as to allow, when mounting the projector or else during the orientation by pivoting of the reflector, a rolling movement of the annular seal. sealing between said surfaces. It should be noted that the gap between the two overlapping surfaces has a width slightly less than the diameter of the section of the annular seal so that said slightly crushed seal remains in contact with the two surfaces during its movement. rolling.
  • FR-A-1 235 402 also discloses a projector in which a joint with several lips establishes a seal between two parallel and fixed surfaces with respect to one another.
  • the present invention aims to take advantage in a different way of such a seal with several lips to solve the aforementioned problem due to the mobility of surfaces.
  • the present invention provides a headlamp in particular for a motor vehicle as defined in claim 1.
  • the interval between the two facing surfaces is such that when the projector is mounted, the lips of said seal are slightly compressed. Therefore, when orienting the reflector, one of the lips extends radially while the other is compressed so as to allow the angular offset of one of said faces relative to the other and the sliding of the other face, and maintain the seal between said reflector and the support part.
  • a projector 100 of the type "optical unit” in particular for a motor vehicle comprising a reflector 110 of optical axis X-X 'carrying a lamp 120 fixed in a socket 121 placed at the bottom of said reflector.
  • This reflector 110 is assembled with a support part 130, itself connected to a closing glass 160 by means of an intermediate piece 150.
  • said reflector comprises two lateral holding fingers 111 which are capable of sliding in lateral slides 131 of said support part 130.
  • the two slides 131 advantageously have a profile in an arc of a circle, the centers of curvature of the arcs of a circle defining a horizontal axis Y-Y ', crossing the optical axis XX' perpendicular to it.
  • the reflector guided by the slides, can tilt by pivoting about the axis Y-Y 'to perform a beam adjustment in elevation.
  • the headlight 100 includes a peripheral elastic seal 140 here of essentially cylindrical shape and disposed between a solid face 112 of the reflector 110 and a solid face 132 of the support part 130 opposite one of the other, and whose normals N 1 , N 2 are essentially perpendicular to the optical axis XX ′.
  • This cylindrical seal 140 is fixed relative to one of the faces, here the integral face 112 of the reflector 110, and comprises, as best shown in Figure 3, on an outer surface 142 in contact with the second opposite face, here the face 132 of the support part 130, three elastic lips 142a, 142b, 142c, allowing an angular offset of one of the faces with respect to the other and a sliding in a direction substantially parallel to the optical axis XX 'of the second face relative to that which pivots, caused by the changes in orientation of the reflector 110.
  • the inner surface 141 of said seal 140 opposite said outer surface 142 carrying said lips 142a, 142b, 142c is a substantially cylindrical surface.
  • the elastic lips are distributed regularly over said radial surface 142 of said seal. More particularly, in FIG. 3 there are two elastic lips 142a, 142c adjacent to the lateral edges 140a, 140b, of said seal and a central lip 142b.
  • the seal 140 is positioned so that its substantially planar inner surface is in contact with said reflector 110, that one of its side edges 140b is wedged against a stop 113 provided on the integral face 112 of the reflector 110, the external surface 142 carrying said lips 142a, 142b, 142c being in contact with the integral face 132 of the support part 130.
  • the pivoting of the reflector 110 around the axis YY ' causes an angular offset of the optical axis XX' of said reflector 110 relative to an axis substantially perpendicular to the closing glass 160.
  • the reflector 110 is oriented in such a way that its optical axis XX ′ has an angular offset ⁇ 1 equal to approximately -5 degrees relative to the axis ⁇ .
  • the upper part of the reflector 110 and of the seal 140 have slid slightly forward relative to the adjacent part of the support 130, while in the lower region, a rearward sliding s 'is produced relative to its position shown in Figure 4, in which the reflector is oriented so that its optical axis XX' is coincident with the axis ⁇ .
  • the lip 142c of said seal adjacent to the edge 140b in contact with the stop 113 has compressed radially at the top and relaxed radially at the bottom while the lip 142a of said seal adjacent to the outer edge 140a facing the closing glass 160 has relaxed, at the top and compressed at the bottom and this way the joint maintains the seal between the two parts.
  • the reflector 110 is oriented in such a way that its optical axis XX ′ has an angular offset ⁇ 2 equal to approximately + 5 degrees relative to the axis ⁇ .
  • ⁇ 2 angular offset
  • the lips 142a and 142c behave in the opposite way to that illustrated in FIG. 5, and here again the seal 140 maintains the seal between the two parts.

Claims (6)

  1. Scheinwerfer (100), insbesondere für Kraftfahrzeuge, mit einem Reflektor (110), der mit einem Halterungsteil (130) verbunden ist, wobei der besagte Reflektor (110) im Verhältnis zu dem besagten Teil (130) durch Schwenkung um wenigstens eine quer zur optischen Achse (X-X') des Reflektors (110) verlaufende Schwenkachse (Y-Y') einstellbar ist, wobei eine elastische Umfangsdichtung (140) zwischen einer fest mit dem Reflektor (110) verbundenen Fläche (112) und einer fest mit dem Halterungsteil (130) verbundenen Fläche (132) angeordnet ist, wobei die besagten Flächen einander gegenüberliegen und gerade Profile mit Senkrechten (N1, N2) aufweisen, die in etwa rechtwinklig zu der besagten optischen Achse (X-X') verlaufen , dadurch gekennzeichnet, daß die besagte Dichtung (140) im Verhältnis zu einer der beiden Flächen (112, 132) feststehend ist und an einer Fläche (142), die mit der gegenüberliegenden zweiten Fläche (132) in Berührung steht, wenigstens zwei elastische Dichtlippen (142a, 142c) umfaßt, die eine Winkelverschiebung einer der Flächen im Verhältnis zur anderen und eine Gleitbewegung entlang einer Richtung, die in etwa parallel zur optischen Achse (X-X') der zweiten Fläche im Verhältnis zu der verschwenkten Fläche verläuft, ermöglicht, welche durch die Ausrichtungsänderungen des Reflektors (110) bewirkt wird.
  2. Scheinwerfer nach Anspruch 1 , dadurch gekennzeichnet, daß die Dichtung (140) auf der besagten Fläche (142) drei elastische Dichtlippen (142a, 142b, 142c) umfaßt, die aus zwei Dichtlippen (142a, 142c), die an den Seitenkanten (140a, 140b) der besagten Dichtung (140) angrenzen, und aus einer mittleren Dichtlippe (142b) bestehen.
  3. Scheinwerfer nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Fläche (141) der Dichtung (140), die der besagten Fläche (142) mit den besagten Dichtlippen (142a, 142b, 142c) gegenüberliegt, eine in etwa ebene Fläche ist.
  4. Scheinwerfer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die besagte Dichtung (140) im Verhältnis zu der fest mit dem Reflektor (110) verbundenen Fläche (112) feststehend und so positioniert ist, daß ihre in etwa zylindrische Fläche (141) mit dem besagten Reflektor (110) in Berührung kommt und daß eine ihrer Seitenkanten (140b) fest an einem Anschlag (113) anliegt, der an der fest mit dem Reflektor (110) verbundenen Fläche (112) vorgesehen ist, wobei die Fläche (142), welche die besagten Dichtlippen (142a, 142b, 142c) trägt mit der Fläche (132) in Berührung steht, die fest mit dem Halterungsteil (130) verbunden ist, die dann eine Winkelverschiebung der fest mit dem Reflektor (110) verbundenen Fläche (112) im Verhältnis zu der fest mit dem Halterungsteil (130) verbundenen Fläche (132) und die besagte Gleitbewegung der fest mit dem Halterungsteil (130) verbundenen Fläche (132) im Verhältnis zu der des Reflektors (110) ermöglichen, welche durch die Ausrichtungsänderungen des Reflektors (110) bewirkt wird.
  5. Scheinwerfer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Schwenkachse (Y-Y') durch eine Ebene der Dichtung (140) verläuft.
  6. Scheinwerfer nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Schwenkachse (Y-Y') durch die Krümmungsmittelpunkte von wenigstens zwei kreisbogenförmigen Führungsbahnen (131) definiert ist, die fest mit dem Halterungsteil verbunden sind und durch die fest mit dem Reflektor (110) verbundene Finger (111) hindurchgehen.
EP93401734A 1992-07-06 1993-07-05 Kfz-Scheinwerfer mit einstellbarem Reflektor Expired - Lifetime EP0578552B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR929208312A FR2693253B1 (fr) 1992-07-06 1992-07-06 Projecteur pour véhicule automobile, comprenant un réflecteur orientale.
FR9208312 1992-07-06

Publications (3)

Publication Number Publication Date
EP0578552A2 EP0578552A2 (de) 1994-01-12
EP0578552A3 EP0578552A3 (de) 1994-03-23
EP0578552B1 true EP0578552B1 (de) 1996-10-02

Family

ID=9431583

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93401734A Expired - Lifetime EP0578552B1 (de) 1992-07-06 1993-07-05 Kfz-Scheinwerfer mit einstellbarem Reflektor

Country Status (4)

Country Link
EP (1) EP0578552B1 (de)
DE (1) DE69305114T2 (de)
ES (1) ES2095600T3 (de)
FR (1) FR2693253B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19519655B4 (de) * 1995-05-30 2010-04-08 Automotive Lighting Reutlingen Gmbh An einem Frontteil eines Fahrzeugs angeordnete Beleuchtungseinrichtung
DE19519653A1 (de) * 1995-05-30 1996-12-05 Bosch Gmbh Robert Beleuchtungseinrichtung für Fahrzeuge
DE19643461A1 (de) * 1996-10-22 1998-04-23 Hella Kg Hueck & Co Scheinwerfer für Fahrzeuge
SI23213A (sl) * 2009-11-24 2011-05-31 Hella Saturnus Slovenija, Proizvodnja Svetlobne Opreme Za Motorna In Druga Vozila, D.O.O. Tesnilo med ohišjem in položajno nastavljivim reflektorjem svetila motornega vozila

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1235402A (fr) * 1959-05-25 1960-07-08 Machal Projecteurs Projecteur étanche notamment pour véhicules automobiles
FR2445484A1 (fr) * 1978-12-27 1980-07-25 Cibie Projecteurs Perfectionnements aux projecteurs de vehicules automobiles
IT1221123B (it) * 1983-06-24 1990-06-21 Limaverne Investment Proiettore per autoveicoli regolabile e almeno parzialmente smontabile
DE3542784A1 (de) * 1985-12-04 1987-06-11 Hella Kg Hueck & Co Scheinwerfer fuer kraftfahrzeuge

Also Published As

Publication number Publication date
FR2693253A1 (fr) 1994-01-07
DE69305114T2 (de) 1997-03-13
EP0578552A2 (de) 1994-01-12
ES2095600T3 (es) 1997-02-16
DE69305114D1 (de) 1996-11-07
FR2693253B1 (fr) 1994-09-30
EP0578552A3 (de) 1994-03-23

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