EP1108950B1 - Kraftfahrzeugscheinwerfer mit verbesserten Lampenverriegelungsmitteln - Google Patents

Kraftfahrzeugscheinwerfer mit verbesserten Lampenverriegelungsmitteln Download PDF

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Publication number
EP1108950B1
EP1108950B1 EP00403193A EP00403193A EP1108950B1 EP 1108950 B1 EP1108950 B1 EP 1108950B1 EP 00403193 A EP00403193 A EP 00403193A EP 00403193 A EP00403193 A EP 00403193A EP 1108950 B1 EP1108950 B1 EP 1108950B1
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EP
European Patent Office
Prior art keywords
ring
lamp
reflector
elastically deformable
rigid element
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
EP00403193A
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English (en)
French (fr)
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EP1108950A1 (de
Inventor
Daniel Josquin
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 EP1108950A1 publication Critical patent/EP1108950A1/de
Application granted granted Critical
Publication of EP1108950B1 publication Critical patent/EP1108950B1/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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/194—Bayonet attachments

Definitions

  • the present invention relates to motor vehicle headlights.
  • the invention relates to a projector comprising improved means for fixing a lamp in a reflector of the projector.
  • the angular position of the lamp relative to the reflector is fixed by polarizing means, and the spring prevents the removal of the lamp.
  • a projector having the features of the preamble of claim 1 is known from DE-A-4123379.
  • the object of the invention is to make it possible to produce a motor vehicle headlamp comprising means for fixing a standard lamp such as those used in known manner with springs of locking, while greatly reducing the disadvantages associated with fasteners by locking springs.
  • the invention proposes a motor vehicle headlamp comprising a lamp mounted in a reflector and means for locking the position of the lamp in the reflector, characterized in that the locking means comprise an elastically-elastic element. deformable and a rigid element, the two elements being movable relative to each other in at least one degree of freedom and cooperating together during their relative movement relative to each other to deform the element elastically deformable and bring portions of this element into overlap of a portion of the lamp, so as to lock the position of the lamp relative to the reflector, and in that the elastically deformable element comprises fingers engaged in respective openings of the rigid element, said openings extending along median lines that do not correspond to arcs of a circle centered on the center of the rigid element, so that during a rotation of the elastically deformable element relative to the rigid element, the cooperation of each finger and the walls of the respective opening in which the finger is engaged causes deformation of the elastically deformable element.
  • Figures 1 and 2 show the structure of arrangements carried by the rear surface of a reflector wall 10 of a projector according to the invention
  • Figure 1 is a rear elevational view.
  • thermodur trademark of thermodur
  • FIGS. 4 to 6 show all or part of a ring 30 intended to be placed and held between the arrangements of the rear of the reflector and the cover 20.
  • This ring made of an elastically deformable material such as a flexible steel or a plastic material, has a circular geometry in the absence of any external constraint.
  • Figure 4 shows the ring in its so-called "unlocking" state (we will specify later in this text what lock is and how it is obtained).
  • the ring 30 is made in one piece, and comprises two fingers 31 and 32 salient perpendicularly out of the same surface of the ring (corresponding to the surface 300 facing the observer in Figure 4), the two fingers being diametrically opposed .
  • Figure 5 shows the geometry of the finger 31 in the particular example described here; however, the fingers may have a different geometry.
  • the outer radius of the ring 30 is constant, but its inner radius is not: the ring has indeed two sections 310 and 320 diametrically opposed and whose width between the outer edge of the section and its inner edge has a first value I, but also two other diametrically opposite sections 311 and 321, which join on both sides of the ring the sections 310 and 320, the width L sections 311 and 312 being greater than I, their inner radius being less than that of sections 310 and 320.
  • the fingers 31 and 32 are located in the middle regions of the respective sections 311 and 312.
  • Figure 6 shows the ring 30 when radial inward stress is applied to each finger 31, 32 (such stresses being represented by arrows). Under the effect of such opposing constraints, the ring deforms and takes an elliptical shape, the sections 311 and 312 then approaching. In this figure, there is shown in dashed lines the shape of the ring in the absence of any constraint.
  • FIGS. 4 and 6 represent the ring with two different angular positions with respect to a reference axis X linked to the casing 20. The meaning of these two angular positions will appear below.
  • FIGS. 7 and 8 show, seen from the rear, the means making it possible to lock according to the invention a standard type lamp "H7" engaged in the opening 11 of the wall of the reflector.
  • the cover 20 and the ring 30 have been assembled to cooperate together so as to selectively block the cup 41 of the lamp 40 so that any movement of the lamp rearward is prohibited.
  • Said cup is supported on the surface 12 of the wall of the reflector, via bosses. Since any movement of the lamp in a plane parallel to that of the cup is also prohibited by the cooperation of conventional tabs B of the lamp cup, with complementary arrangements of the reflector (said adjustments of the reflector being only partially shown in the figure by the notch 120 in the peripheral wall of the opening 11), the prohibition of movement of the lamp in a direction perpendicular to the plane of the cup 41 is equivalent to locking the lamp.
  • the ring 30 is engaged at the rear on the surface of the crown 13 of the arrangements of the reflector.
  • the ring is mounted on the ring 13 so as to surround the guides 131 and 132 with which the inner wall of the sections 310 and 320 of the ring cooperates to guide the ring in rotation about an axis coinciding with the axis of the lamp .
  • the cover 20 (only part of which is shown in Figure 7) was mounted behind the ring 30 so as to cover it from the rear, the fingers 31 and 32 of the ring being when mounting the bonnet engaged in the two respective openings of the cover (only the opening 211 being shown in Figure 7).
  • the groove portion 22 of the cover has then been fitted into the groove 14 of the reflector wall, so that the cover is fixed relative to the reflector and holds the ring 30.
  • the fingers 31 and 32 are not subjected to any radial force directed towards the center of the ring, so that the elastic ring returns to its shape. corresponding to the representation of Figure 4. Therefore, the sections 311 and 321 are also spaced so that they no longer cover the lamp cup, which can be removed from the reflector.
  • the invention is not limited to the particular embodiment shown above in which a fixed rigid element (Cover 20) cooperates with an elastically deformable and movable element (ring 30).
  • a fixed rigid element Cover 20
  • an elastically deformable and movable element ring 30
  • the rigid element corresponding here to the casing 20
  • the elastically deformable element a part of which partially covers the cup of the lamp to lock its position, the important thing being that during the movement relative to the rigid element, these two elements cooperate to deform the elastically deformable element so that certain parts thereof are at least partially cover the cup 41 of the lamp and lock, so its position in the reflector.
  • the relative movement of the elastically deformable element relative to the rigid element is a rotation about an axis coincident with that of the lamp as in the example described above. ; it is also possible to arrange these two elements so that they cooperate in any other degree of freedom (translation, translation-rotation, screwing, ).

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

Claims (11)

  1. Kraftfahrzeugscheinwerfer mit einer in einem Reflektor (10) montierten Lampe (40) und Mitteln (20, 30, 12, 13, 14) zum Verriegeln der Lampenposition in dem Reflektor, wobei die Verriegelungsmittel ein elastisch verformbares Element (30) und ein starres Element (20) umfassen, wobei die beiden Elemente bezüglich einander gemäß wenigstens einem Freiheitsgrad beweglich sind und bei ihrer Bewegung bezüglich einander miteinander zusammenwirken, um das elastisch verformbare Element (30) zu verformen und Teile (311, 321) dieses Elements zu veranlassen, einen Teil (41) der Lampe derart zu überdecken, dass die Position der Lampe bezüglich des Reflektors verriegelt ist,
    dadurch gekennzeichnet, dass das elastisch verformbare Element Finger (31, 32) umfasst, die in entsprechende Öffnungen (211, 212) des starren Elements eingeführt sind, wobei sich die Öffnungen entlang von Mittellinien erstrecken, die nicht auf die Mitte des starren Elements ausgerichteten Kreisbögen entsprechen, so dass das Zusammenwirken zwischen jedem Finger und den Wänden der jeweiligen Öffnung, in die der Finger eingeführt ist, bei einer Drehung des elastisch verformbaren Elements bezüglich des starren Elements die Verformung des elastisch verformbaren Elements bewirkt.
  2. Scheinwerfer nach Anspruch 1,
    dadurch gekennzeichnet, dass die Freiheitsgrade des elastisch verformbaren Elements (30) bezüglich des starren Elements (20) ein einziger Freiheitsgrad sind.
  3. Scheinwerfer nach Anspruch 2,
    dadurch gekennzeichnet, dass der einzige Freiheitsgrad eine Drehung um eine zur Achse der Lampe parallele Achse ist.
  4. Scheinwerfer nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass das starre Element (20) bezüglich des Reflektors (10) feststehend ist, wobei das elastisch verformbare Element (30) bezüglich des Reflektors beweglich ist.
  5. Scheinwerfer nach Anspruch 4,
    dadurch gekennzeichnet, dass das elastisch verformbare Element (30) ein im Wesentlichen kreisrunder Ring ist, dessen Finger (31, 32) mit den entsprechenden Mitteln (211, 212) des starren Elements derart zusammenwirken, dass eine Drehung des Rings um eine zur Achse der Lampe parallele Achse eine Verformung des Rings bewirkt, wobei die Drehung des Rings zwischen zwei Endstellungen begrenzt ist, die einer Stellung zur Verriegelung der Lampe, in der wenigstens ein Teil (311, 321) des Rings einen Teil (41) der Lampe überdeckt, bzw. einer Stellung zur Freigabe der Lampe entsprechen, in der die Lampe von keinem Teil des Rings überdeckt ist.
  6. Scheinwerfer nach Anspruch 5,
    dadurch gekennzeichnet, dass die Öffnungen (211, 212) des starren Elements so ausgebildet sind, dass eine Drehung des Rings in eine erste Richtung ein Annähern von Ringteilen (311, 321) bewirkt, so dass diese Ringteile einen Teller (41) der Lampe überdecken, und eine Drehung des Rings in die entgegengesetzte Richtung ein Abrücken dieser Ringteile voneinander bewirkt, so dass diese den Teller freigeben.
  7. Scheinwerfer nach Anspruch 6,
    dadurch gekennzeichnet, dass die Ringteile, die imstande sind, den Lampenteller zu überdecken, Ringsegmente (311, 321) mit verringertem Innenradius sind.
  8. Scheinwerfer nach einem der Ansprüche 6 oder 7,
    dadurch gekennzeichnet, dass die in die Öffnungen des starren Elements eingeführten Finger des Rings über die Seite des starren Elements herausragen, so dass sie für einen Monteur zugänglich sind, damit dieser den Ring drehen kann.
  9. Scheinwerfer nach einem der Ansprüche 5 bis 8,
    dadurch gekennzeichnet, dass die Drehung des Rings durch das Zusammenwirken des Rings mit Führungen (131, 132) geführt wird, die aus der Wand (10) des Reflektors vorstehen.
  10. Scheinwerfer nach einem der Ansprüche 5 bis 9,
    dadurch gekennzeichnet, dass Mittel zum Fixieren der Position des Rings (30) bezüglich des starren Elements (20) sowohl in der Verriegelungs- als auch in der Entriegelungsstellung der Lampe vorgesehen sind.
  11. Scheinwerfer nach einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet, dass das elastisch verformbare Element (30) bezüglich des Reflektors (10) feststehend ist, während das starre Element (20) bezüglich des Reflektors beweglich ist.
EP00403193A 1999-12-15 2000-11-16 Kraftfahrzeugscheinwerfer mit verbesserten Lampenverriegelungsmitteln Expired - Lifetime EP1108950B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9915811A FR2802614B1 (fr) 1999-12-15 1999-12-15 Projecteur de vehicule automobile comprenant des moyens perfectionnes de verrouillage de lampe
FR9915811 1999-12-15

Publications (2)

Publication Number Publication Date
EP1108950A1 EP1108950A1 (de) 2001-06-20
EP1108950B1 true EP1108950B1 (de) 2006-11-29

Family

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Family Applications (1)

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EP00403193A Expired - Lifetime EP1108950B1 (de) 1999-12-15 2000-11-16 Kraftfahrzeugscheinwerfer mit verbesserten Lampenverriegelungsmitteln

Country Status (4)

Country Link
EP (1) EP1108950B1 (de)
DE (1) DE60032104T2 (de)
ES (1) ES2276667T3 (de)
FR (1) FR2802614B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007022028B4 (de) * 2007-05-11 2016-10-20 Automotive Lighting Reutlingen Gmbh Beleuchtungseinrichtung für ein Fahrzeug, insbesondere Kraftfahrzeugscheinwerfer
CN101900284B (zh) * 2009-05-27 2012-08-29 市光工业株式会社 车辆用灯具

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1529782A (fr) * 1967-05-08 1968-06-21 Sev Marchal Perfectionnements apportés aux projecteurs tels que ceux des véhicules automobiles
DE4123379A1 (de) * 1991-07-15 1993-01-21 Bosch Gmbh Robert Gluehlampenbefestigung an einem scheinwerferreflektor
DE4436409C1 (de) * 1994-10-12 1995-12-07 Hella Kg Hueck & Co Halterung einer Lampe in einer Öffnung eines Reflektors eines Fahrzeug-Scheinwerfers

Also Published As

Publication number Publication date
FR2802614A1 (fr) 2001-06-22
DE60032104T2 (de) 2007-06-28
EP1108950A1 (de) 2001-06-20
DE60032104D1 (de) 2007-01-11
FR2802614B1 (fr) 2002-05-24
ES2276667T3 (es) 2007-07-01

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