EP1764550A1 - Headlamp comprising a shade controlled between two operating modes by means of a retractable stop - Google Patents

Headlamp comprising a shade controlled between two operating modes by means of a retractable stop Download PDF

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Publication number
EP1764550A1
EP1764550A1 EP06291392A EP06291392A EP1764550A1 EP 1764550 A1 EP1764550 A1 EP 1764550A1 EP 06291392 A EP06291392 A EP 06291392A EP 06291392 A EP06291392 A EP 06291392A EP 1764550 A1 EP1764550 A1 EP 1764550A1
Authority
EP
European Patent Office
Prior art keywords
cover
angular position
extreme angular
finger
masking
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.)
Granted
Application number
EP06291392A
Other languages
German (de)
French (fr)
Other versions
EP1764550B1 (en
Inventor
Jean Bolis
Nicolas Louvet
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
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Filing date
Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP1764550A1 publication Critical patent/EP1764550A1/en
Application granted granted Critical
Publication of EP1764550B1 publication Critical patent/EP1764550B1/en
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/698—Shaft-shaped screens rotating along its longitudinal axis
    • 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
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/689—Flaps, i.e. screens pivoting around one of their edges

Definitions

  • the invention relates to a motor vehicle headlight which comprises a cover which can be controlled according to two modes of use.
  • This type of projector is generally arranged at the front of the motor vehicle to illuminate the road at the front of the vehicle.
  • the projector emits a beam of light called "high beam” which allows the driver of the vehicle to have an overall visibility of the road in front of him.
  • the light beam emitted by the headlamp is however likely to dazzle drivers of vehicles traveling in the opposite direction on the road.
  • the headlamp When the cover occupies its extreme angular position of illumination, the headlamp emits the beam of road light in order to illuminate the whole of the road to the front of the vehicle.
  • the driver controls the cover in its extreme angular position of illumination when there is no risk of dazzling the driver of a vehicle traveling in the opposite direction.
  • the cover In its extreme angular masking position, the cover allows a regulatory cut of the light beam including masking the light rays which are directed towards the side of the road on which the vehicles roll in the opposite direction.
  • the projector then emits a beam called "dipped beam".
  • the dipped beam illuminates the right side of the road more than the left side of the road.
  • traffic is likely to change sides depending on local legislation.
  • traffic is on the left half of the road while in other countries traffic is on the right half of the road. If the headlamp emits a cross beam suitable for traffic on the right while the vehicle is traveling in a country in which traffic is on the left, drivers traveling in the opposite direction in the right lane may be dazzled then that the left side of the road on which pedestrians are likely to walk will not be well lit.
  • the document FR-A-2769071 proposes already a projector equipped with a cache which is likely to work according to two modes of use, a first mode of use known as "traffic on the right" and a second mode of use known as "trafic left”.
  • the driver is able to control the cache between a first angular position of masking in which the projector emits a beam of passing light for traffic on the right and the angular position of illumination in which the headlamp emits a beam of high beam.
  • the driver is able to control the cache between a second angular position of masking in which the projector emits a beam of low beam for the traffic on the left and the angular position of illumination in which the headlamp emits a beam of high beam.
  • the cover comprises two adjacent wings or active parts which are arranged substantially perpendicular to one another and which extend radially from the axis of rotation of the cover.
  • Each wing has a profile adapted to perform the cut of the beam respectively for traffic on the right and for traffic on the left.
  • This document proposes to switch the projector from the first mode of use to traffic on the right in the second mode of use in traffic on the left by operating an electric motor.
  • the projector may dazzle drivers of vehicles traveling in the opposite direction.
  • the present invention provides a projector of the type described above, characterized in that it comprises a stop which is mounted movably between a retracted position in which the cover is free to pivot between its first extreme angular position masking and its extreme angular illumination position, and an active position to limit the pivoting of the mask between its second extreme angular masking position and its extreme angular illumination position.
  • FIG. 1 a projector 20 which is intended to be arranged in a motor vehicle, for example at the front of the vehicle.
  • the projector 20 comprises a reflector 22 whose inner active optical surface 24 has a generally ellipsoidal shape and which has a front opening 25.
  • the optical axis "A" of the reflector 22 has a longitudinal orientation.
  • the reflector 22 comprises a first rear focus "F1" and a second front focus “F2" which are arranged on the optical axis "A".
  • a light source 26 is arranged in the vicinity of the first focus "F1", inside the reflector 22. This is a discharge lamp 26 which is mounted in the reflector 22 via an orifice mounting provided at the rear vertex 28 of the reflector 22.
  • the projector 20 also comprises an intermediate sleeve 30 of generally frustoconical shape converging towards the front which is coaxial with the optical axis "A".
  • the rear end 32 of the sleeve 30 has a rear opening 33 whose contour corresponds to the outline of the opening
  • the sleeve 30 is intended to be fixed around the periphery of the front opening 25 of the reflector 22.
  • the rear end of the sleeve 30 has a flange 32.
  • the front end of the sleeve 30 is closed by a converging optical lens 34.
  • the lens 34 is arranged so that its optical plane coincides with the second front focus "F2" of the reflector 22.
  • the projector 20 also includes a cover 36.
  • the cover 36 is pivotally mounted about an axis of rotation "B" of transverse orientation with respect to the reflector 22.
  • the axis of rotation "B" of the cover 36 is not concurrent with the optical axis "A" of the reflector 22.
  • the axis of rotation "B” is more particularly arranged in the transverse vertical plane of the front opening 25 of the reflector, near the second front focus "F2". As shown in FIG. 3, the axis of rotation "B" of the cover 36 is more particularly arranged slightly below the second front focus "F2"
  • the cover 36 has a first flange 38 and a second flange 40 adjacent. Each wing 38, 40 extends radially from the axis of rotation "B". The transverse width of the flanges 38, 40 is substantially equal to the transverse diameter of the opening 25 of the reflector 22 at the height of the second focus "F2".
  • the wings 38, 40 meet at an angle at the axis of rotation "B" of the cover 36.
  • the wings 38, 40 here form a right angle so that the second flange 40 is arranged substantially at 90 ° relative to the first flange 38 in a counterclockwise direction of rotation with reference to FIG.
  • Each wing 38, 40 has at least one opaque active portion which is intended to prevent a portion of the light rays "R" to cross when the wing 38, 40 is interposed vertically between the lamp 26 and the second home "F2".
  • the pivoting of the cover 36 around its axis of rotation "B" is here controlled by an electric motor 42 which is arranged outside to the right of the reflector 22, as shown in FIG. 1.
  • the motor 42 could be arranged to the left of the reflector 22.
  • such a projector 20 is likely to be controlled according to two modes of use depending on the traffic direction of the vehicles to the left of the road or to the right of the road.
  • the cover 36 is controlled between a first extreme angular position of masking which is represented in FIG. 3 in which the first wing 38 extends vertically upward from the axis of rotation "B" of the cover 36 so as to mask a first portion of the light rays "R", and an extreme angular illumination position which is shown in Figure 4 in which none of the wings 38, 40 mask the light rays "R".
  • the second flange 40 extends horizontally rearwardly from the axis of rotation "B" of the cover 36. As shown in FIG. 4, when the cover 36 is in its extreme angular illumination position, the second flange 40 extends horizontally forwardly from the axis of rotation "B" of the cover 36.
  • the cover 36 rotates 180 °, in a clockwise direction with reference to FIGS. 3 and 4, during its passage from the first extreme angular position of masking to its extreme angular position. 'lighting.
  • the upper end edge 44 of the first flange 38 is here profiled asymmetrically so as to hide the upper light rays may be oriented towards the left side of the road.
  • the first extreme angular position of masking corresponds to a use of the projector 20 in low beam when the vehicle rolls to the right of the road, while the extreme angular position of illumination corresponds to a use of the projector 20 in high beam .
  • the cover 36 is controlled between a second extreme angular position of masking which is represented in FIG. 6 in which the second wing 40 extends vertically upwards from the axis of rotation. "B" of the cover 36 so as to mask a first portion of the "R" light rays, and an extreme illumination angular position which is shown in Figure 7 in which none of the wings 38, 40 mask the light rays "R" ".
  • the first flange 38 extends horizontally forwards from the axis of rotation "B" of the cover 36. As shown in FIG. 7, when the cover 36 is in its extreme angular illumination position, the first flange 38 extends vertically downwards from the axis of rotation "B" of the cover 36.
  • the cover 36 pivots 90 °, in a clockwise direction with reference to FIGS. 6 and 7, during its passage from the second extreme angular position of masking to its extreme angular position. 'lighting.
  • the upper end edge 46 of the first flange 38 is profiled asymmetrically so as to hide the light rays may be oriented towards the right side of the road.
  • the second extreme angular position masking corresponds to a use of the projector 20 at low beam when the vehicle rolls to the left of the road, while the extreme angular position of illumination corresponds to a use of the projector 20 in high beam .
  • the second extreme angular position of masking is interposed between the first extreme angular position of masking and the position extreme angular lighting.
  • the cover 36 pivots about its axis of rotation "B" in a clockwise movement according to Figure 3.
  • the cover 36 is passed without stopping by its second extreme angular position of pivoting.
  • this passage being very fast, partial masking of the light beam by the second wing 40 is imperceptible by road users.
  • the cover 36 also comprises means for limiting its pivoting between its first extreme angular position of masking and its extreme angular position of illumination.
  • the axis of rotation "B” carries a first and a second radial arm 48, 50.
  • the arms 48, 50 are here arranged on a left end portion of the axis of rotation "B" of the cache 36 according to Figure 1, outside the reflector 22. They are integral in rotation with the wings 38, 40.
  • Each arm 48, 50 is intended to cooperate respectively with a first angular stop 52 and a second angular stop 54 which are integral with the reflector 22.
  • the bracket 56 comprises a horizontal upper wing whose upper face 55 carries the first angular stop 52, and it comprises a second transverse vertical wing which extends downwards from the front end edge of the upper wing whose front face 57 carries the second angular stop 54.
  • the cover 36 also has elastic return means 58 towards its first extreme angular position of masking.
  • This is a helical torsion spring 58 which surrounds the axis of rotation "B" of the cover 36.
  • the spring 58 is more particularly interposed transversely between the arms 48, 50 and the reflector 22.
  • a first leg of 60 end of the spring 58 is fixed to the reflector 22 and a second end tab 62 of the spring 58 is fixed to the first arm 48.
  • the projector 20 comprises an operating mode change mechanism 64 which is here arranged to the left of the reflector 22 with reference to FIG.
  • the operation mode changing mechanism 64 is shown in more detail in FIG. 8.
  • the operating mode changing mechanism 64 includes a retractable finger 66 of longitudinal orientation main axis.
  • the finger 66 has a lower horizontal face 68 which is intended to form a retractable stopper 68.
  • the front end 70 of the finger 66 has a convex hemi-cylindrical face of transverse axis which is arranged in the extension of the abutment face 68 without forming a groove. 'sharp corner. This front face 70 will subsequently be called the thrust face 70.
  • the finger 66 is slidably mounted longitudinally with respect to the reflector 22 between a retracted rear position in which the forward thrust face 70 of the finger 66 is arranged behind the axis of rotation "B" of the cover 36 and a forward active position in which a lower abutment face 68 of the finger 66 is likely to limit the pivoting of the cover 36 about its axis of rotation "B".
  • the finger 66 is here mounted sliding longitudinally on the horizontal surface 55 of the bracket 56.
  • the rear end of the finger 66 is carried by a slide 72 which is slidably mounted in a buttonhole 74 of longitudinal orientation which is formed in the upper surface 55 of the angle iron 56.
  • the finger 66 is made integrally with the slide 72.
  • the axis of rotation "B" of the cover 36 carries here at its left end a cylindrical tilting element 76 which is coaxial with the axis of rotation "B" of the cover 36.
  • the tilting element 76 is integral. in rotation of the axis of rotation "B” of the cover 36.
  • the tilting element 76 has a lug which extends radially generally relative to the axis of rotation "B".
  • the lug comprises a radial bearing face 78 which is here tangent to the cylindrical face of the tilting element 76.
  • the bearing face 78 extends in a transverse vertical plane and is directed towards the rear.
  • the finger 66 is in the retracted retracted position.
  • the cover 36 is thus free to pivot between its first extreme angular position of masking and its extreme angular position of illumination.
  • the first arm 58 is elastically held in abutment against the first angular stop 52 by the return spring 58.
  • the bearing face 78 of the tilting element 76 is then arranged vis-à-vis the front thrust 70 of the finger 66.
  • the bearing face 78 abuts against the front thrust face 70 of the finger 66 in the retracted retracted position.
  • the first arm 48 is then no longer necessary to limit the pivoting of the cover 36 towards its first extreme angular position of masking.
  • the motor 42 drives the cover 36 pivoting about its axis of rotation "B" in a clockwise direction according to FIG. 4 to its extreme angular position. lighting.
  • the second arm 50 of the cover 36 is then in contact with the second angular stopper 54.
  • the cover 36 is then resiliently biased towards its first extreme angular position of masking by the return spring 58.
  • the finger 66 When the projector 20 is to switch to its second mode of use, the finger 66 is controlled to its active position before.
  • the cover 36 is then pivoted from its first position extreme masking angle to its second extreme angular position of masking by the sliding of the finger 66 from its retracted rear position to its active forward position.
  • the convex profile of the front thrust face 70 of the finger 66 is made so that the bearing face 78 rolls on the front face of the thrust 70 of the finger 66 with a very low friction.
  • the front push face 70 of the finger 66 being arranged adjacent to the abutment face 68, in the extension thereof, the forward thrust face 70 guides the bearing face 78 of the tilting element 76 to at the abutment face 68 of the finger 66 during the movement of the finger 66 from its retracted rear position to its active forward position.
  • the cover 36 is then held elastically in its second extreme angular position by the return spring 58.
  • the motor 42 drives the cover 36 pivoting about its axis of rotation "B" by an angle of 90 ° in a clockwise direction according to FIG. up to its extreme angular position of illumination.
  • the second arm 50 of the cover 36 is then in contact with the second angular stopper 54.
  • the cylindrical wall of the tilting element 76 is here tangent with the bearing face 68 of the finger 66. However, it is not necessary for the tilting element 76 to be in contact with the abutment face 68 of the finger 68.
  • the cover 36 is then resiliently biased towards its second extreme angular position of masking by the return spring 58.
  • the sliding of the finger 66 can be performed manually or automatically by means of a motor (not shown).
  • the finger 66 is fixed on a lever which is pivotally mounted about an axis parallel to the axis of rotation "B" of the cover 36.
  • the lever is able to move the finger 66 from its retracted rear position to its active forward position.
  • the finger 66 is replaced by a cam 80 which is pivotally mounted about a transverse axis "C" parallel to the axis of rotation "B" of the cache 36 between a retracted position and an active position.
  • the edge of the cam 80 has the abutment face 68.

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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)
  • Projection Apparatus (AREA)

Abstract

The headlight (20), comprising an elliptical reflector (22), a light source (26) and a mask (36) that pivots about a transverse axis of rotation, incorporates a stop mechanism (64) that limits the movement of the mask depending on whether the headlight is set for right- or lefthand driving. The rotation of the mask is controlled by an electric motor (42) positioned outside the reflector.

Description

L'invention concerne un projecteur de véhicule automobile qui comporte un cache qui est susceptible d'être commandé selon deux modes d'utilisation.The invention relates to a motor vehicle headlight which comprises a cover which can be controlled according to two modes of use.

L'invention concerne plus particulièrement un projecteur, notamment de véhicule automobile, qui est apte à émettre un faisceau lumineux vers l'avant selon la direction globale d'un axe optique longitudinal et qui comporte :

  • un réflecteur de type elliptique qui comporte un premier foyer et un deuxième foyer qui sont agencés sur l'axe optique ;
  • une source lumineuse qui est agencée au voisinage du premier foyer ;
  • un cache qui est agencé au voisinage du deuxième foyer et qui est monté pivotant autour d'un axe de rotation orthogonal à l'axe optique,
le pivotement du cache étant susceptible d'être commandé suivant :
  • un premier mode d'utilisation dans lequel le cache est commandé entre une première position angulaire extrême de masquage dans laquelle une première partie active du cache masque une première partie du faisceau lumineux et une position angulaire extrême d'éclairage dans laquelle le faisceau lumineux n'est pas masqué ;
  • un deuxième mode d'utilisation dans lequel le cache est commandé entre une deuxième position angulaire extrême de masquage dans laquelle une deuxième partie active du cache masque une deuxième partie du faisceau lumineux et la position angulaire extrême d'éclairage ;
la deuxième position angulaire extrême de masquage étant intercalée entre la première position angulaire extrême de masquage et la position angulaire extrême d'éclairage.The invention more particularly relates to a headlamp, particularly a motor vehicle, which is capable of emitting a light beam forward in the overall direction of a longitudinal optical axis and which comprises:
  • an elliptical reflector having a first focus and a second focus that are arranged on the optical axis;
  • a light source which is arranged in the vicinity of the first focus;
  • a cover which is arranged in the vicinity of the second focus and which is pivotally mounted about an axis of rotation orthogonal to the optical axis,
the pivoting of the cover being able to be controlled according to:
  • a first mode of use in which the mask is controlled between a first extreme angular position of masking in which a first active part of the mask masks a first portion of the light beam and an extreme angular position of illumination in which the light beam n ' is not masked;
  • a second mode of use in which the mask is controlled between a second extreme angular masking position in which a second active portion of the mask masks a second portion of the light beam and the extreme angular position of illumination;
the second extreme angular position of masking being interposed between the first extreme angular position of masking and the extreme angular position of illumination.

Ce type de projecteur est généralement agencé à l'avant du véhicule automobile afin d'éclairer la route à l'avant du véhicule.This type of projector is generally arranged at the front of the motor vehicle to illuminate the road at the front of the vehicle.

Le projecteur émet un faisceau lumineux dit "feu de route" qui permet au conducteur du véhicule d'avoir une visibilité globale de la route devant lui. Le faisceau lumineux émis par le projecteur est cependant susceptible d'éblouir les conducteurs de véhicules roulant en sens inverse sur la route.The projector emits a beam of light called "high beam" which allows the driver of the vehicle to have an overall visibility of the road in front of him. The light beam emitted by the headlamp is however likely to dazzle drivers of vehicles traveling in the opposite direction on the road.

Pour éviter ce désagrément, il est connu d'équiper le projecteur d'un cache, qui est parfois dénommé écran ou occulteur. Ce cache est généralement monté pivotant entre une position angulaire extrême verticale de masquage dans laquelle il masque partiellement le faisceau lumineux et une position angulaire extrême horizontale d'éclairage dans laquelle il ne masque pas le faisceau lumineux.To avoid this inconvenience, it is known to equip the projector with a cache, which is sometimes called screen or occulteur. This cover is generally pivotally mounted between an extreme vertical angular position of masking in which it partially obscures the light beam and an extreme horizontal angular position of illumination in which it does not mask the light beam.

Lorsque le cache occupe sa position angulaire extrême d'éclairage, le projecteur émet le faisceau de feu de route afin d'éclairer la globalité de la route à l'avant du véhicule. Le conducteur commande le cache dans sa position angulaire extrême d'éclairage lorsqu'il n'y a pas de risque d'éblouissement du conducteur d'un véhicule roulant en sens inverse.When the cover occupies its extreme angular position of illumination, the headlamp emits the beam of road light in order to illuminate the whole of the road to the front of the vehicle. The driver controls the cover in its extreme angular position of illumination when there is no risk of dazzling the driver of a vehicle traveling in the opposite direction.

Dans sa position angulaire extrême de masquage, le cache permet de réaliser une coupure réglementaire du faisceau lumineux notamment en masquant les rayons lumineux qui sont dirigés vers le coté de la route sur lequel les véhicules roulent en sens inverse. Le projecteur émet alors un faisceau dit "feu de croisement". Ainsi, lorsque les véhicules sont tenus de rouler sur la voie droite de la chaussée par la législation locale, le feu de croisement éclaire plus le coté droit de la route que le coté gauche de la route.In its extreme angular masking position, the cover allows a regulatory cut of the light beam including masking the light rays which are directed towards the side of the road on which the vehicles roll in the opposite direction. The projector then emits a beam called "dipped beam". Thus, when vehicles are required to drive on the right lane of the roadway by local legislation, the dipped beam light illuminates the right side of the road more than the left side of the road.

Cependant, le trafic est susceptible de changer de coté en fonction de la législation locale. Ainsi, dans certains pays le trafic se fait sur la moitié gauche de la route tandis que dans d'autres pays le trafic se fait sur la moitié droite de la route. Si le projecteur émet un faisceau de feu de croisement adapté pour un trafic à droite alors que le véhicule circule dans un pays dans lequel le trafic se fait à gauche, les conducteurs roulant en sens inverse sur la voie de droite risquent d'être éblouis alors que le coté gauche de la route sur lequel des piétons sont susceptibles de marcher ne sera pas bien éclairé.However, the traffic is likely to change sides depending on local legislation. Thus, in some countries traffic is on the left half of the road while in other countries traffic is on the right half of the road. If the headlamp emits a cross beam suitable for traffic on the right while the vehicle is traveling in a country in which traffic is on the left, drivers traveling in the opposite direction in the right lane may be dazzled then that the left side of the road on which pedestrians are likely to walk will not be well lit.

Le document FR-A-2.769.071 propose déjà un projecteur équipé d'un cache qui est susceptible de fonctionner selon deux modes d'utilisation, un premier mode d'utilisation dit "trafic à droite" et un deuxième mode d'utilisation dit "trafic à gauche".The document FR-A-2769071 proposes already a projector equipped with a cache which is likely to work according to two modes of use, a first mode of use known as "traffic on the right" and a second mode of use known as "trafic left".

Dans le premier mode d'utilisation de trafic à droite, le conducteur est susceptible de commander le cache entre une première position angulaire de masquage dans laquelle le projecteur émet un faisceau de feu de croisement pour le trafic à droite et la position angulaire d'éclairage dans laquelle le projecteur émet un faisceau de feu de route.In the first mode of use of traffic on the right, the driver is able to control the cache between a first angular position of masking in which the projector emits a beam of passing light for traffic on the right and the angular position of illumination in which the headlamp emits a beam of high beam.

Dans le deuxième mode d'utilisation de trafic à gauche, le conducteur est susceptible de commander le cache entre une deuxième position angulaire de masquage dans laquelle le projecteur émet un faisceau de feu de croisement pour le trafic à gauche et la position angulaire d'éclairage dans laquelle le projecteur émet un faisceau de feu de route.In the second mode of use of traffic on the left, the driver is able to control the cache between a second angular position of masking in which the projector emits a beam of low beam for the traffic on the left and the angular position of illumination in which the headlamp emits a beam of high beam.

A cette fin, le cache comporte deux ailes ou parties actives adjacentes qui sont agencées sensiblement perpendiculairement l'une à l'autre et qui s'étendent radialement depuis l'axe de rotation du cache. Chaque aile comporte un profil adapté pour réaliser la coupure du faisceau respectivement pour le trafic à droite et pour le trafic à gauche.For this purpose, the cover comprises two adjacent wings or active parts which are arranged substantially perpendicular to one another and which extend radially from the axis of rotation of the cover. Each wing has a profile adapted to perform the cut of the beam respectively for traffic on the right and for traffic on the left.

Ce document propose de faire passer le projecteur du premier mode d'utilisation en trafic à droite au deuxième mode d'utilisation en trafic à gauche en actionnant un moteur électrique.This document proposes to switch the projector from the first mode of use to traffic on the right in the second mode of use in traffic on the left by operating an electric motor.

Cependant, en cas de défaillance temporaire ou permanente du moteur électrique, le projecteur risque d'éblouir intempestivement les conducteurs de véhicules roulant en sens inverse.However, in case of temporary or permanent failure of the electric motor, the projector may dazzle drivers of vehicles traveling in the opposite direction.

Pour remédier à ce problème, la présente invention propose un projecteur du type décrit précédemment, caractérisé en ce qu'il comporte une butée qui est montée mobile entre une position escamotée dans laquelle le cache est libre de pivoter entre sa première position angulaire extrême de masquage et sa position angulaire extrême d'éclairage, et une position active pour limiter le pivotement du cache entre sa deuxième position angulaire extrême de masquage et sa position angulaire extrême d'éclairage.To remedy this problem, the present invention provides a projector of the type described above, characterized in that it comprises a stop which is mounted movably between a retracted position in which the cover is free to pivot between its first extreme angular position masking and its extreme angular illumination position, and an active position to limit the pivoting of the mask between its second extreme angular masking position and its extreme angular illumination position.

Selon d'autres caractéristiques de l'invention :

  • dans sa position active, la butée est susceptible d'entrer en contact avec une face radiale excentrée d'appui du cache ;
  • la butée est portée par un doigt qui est monté mobile entre la position escamotée de la butée et la position active de la butée, le doigt comportant une face de poussée qui, lorsque le doigt est déplacé depuis sa position escamotée vers sa position active, est susceptible d'entrer en contact avec la face d'appui du cache dans sa première position angulaire extrême de masquage de manière à faire pivoter le cache vers sa deuxième position angulaire extrême de masquage ;
  • la face de poussée du doigt est agencée de manière adjacente à la butée de manière que la face de poussée guide la face d'appui du cache jusqu'à la butée lors du déplacement du doigt depuis sa position escamotée jusqu'à sa position active ;
  • la face de poussée est profilée de manière que, lors du déplacement du doigt vers sa position active, la face de poussée du doigt roule sans glisser sur la face d'appui du cache ;
  • en position escamotée du doigt, la face d'appui du cache est susceptible de venir en butée contre la face de poussée du doigt dans la première position angulaire extrême de masquage du cache ;
  • la butée est montée coulissante entre sa position escamotée et sa position active selon une direction sensiblement orthogonale à l'axe de rotation du cache ;
  • la butée est montée pivotante autour d'un axe sensiblement parallèle à l'axe de rotation du cache, entre sa position escamotée et sa position active ;
  • le doigt est une came qui coopère avec la face d'appui du cache qui forme un suiveur de came ;
  • le cache comporte des moyens élastiques de rappel vers sa première position angulaire extrême.
According to other features of the invention:
  • in its active position, the stop is likely to come into contact with an eccentric radial face support of the cache;
  • the stop is carried by a finger which is movably mounted between the retracted position of the stop and the active position of the stop, the finger having a thrust face which, when the finger is moved from its retracted position to its active position, is capable of coming into contact with the support face of the cover in its first extreme angular position of masking so as to pivot the cover towards its second extreme angular position of masking;
  • the thrust face of the finger is arranged adjacent to the stop so that the thrust face guides the bearing face of the cover to the stop when moving the finger from its retracted position to its active position;
  • the thrust face is profiled so that, during the movement of the finger towards its active position, the thrust face of the finger rolls without sliding on the bearing face of the cover;
  • in the retracted position of the finger, the support face of the cover is likely to abut against the thrust face of the finger in the first extreme angular position masking the cache;
  • the stop is slidably mounted between its retracted position and its active position in a direction substantially orthogonal to the axis of rotation of the cache;
  • the stop is pivotally mounted about an axis substantially parallel to the axis of rotation of the cover, between its retracted position and its active position;
  • the finger is a cam which cooperates with the bearing face of the cover which forms a cam follower;
  • the cover comprises elastic return means to its first extreme angular position.

D'autres caractéristiques et avantages apparaîtront au cours de la lecture de la description détaillée qui va suivre pour la compréhension de laquelle on se reportera aux dessins annexés parmi lesquels :

  • la figure 1 est une vue en perspective éclatée qui représente un projecteur avant de véhicule automobile comportant un cache qui est réalisé selon les enseignements de l'invention, le cache étant dans une position quelconque ;
  • la figure 2 est une vue de face qui représente le projecteur de la figure 1 lorsque le cache occupe une première position angulaire extrême de masquage ;
  • la figure 3 est une vue en coupe longitudinale selon le plan de coupe 3-3 de la figure 1 qui représente le projecteur de la figure 1 lorsque le cache occupe sa première position angulaire extrême de masquage ;
  • la figure 4 est une vue similaire à celle de la figure 3 dans laquelle le cache occupe une deuxième position angulaire extrême d'éclairage ;
  • la figure 5 est une vue similaire à celle de la figure 2 dans laquelle le cache occupe une deuxième position angulaire extrême de masquage ;
  • la figure 6 est une vue similaire à celle de la figure 3 dans laquelle le cache occupe sa deuxième position angulaire extrême de masquage ;
  • la figure 7 est une vue identique à celle de la figure 4 ;
  • la figure 8 est une vue en perspective à plus grande échelle qui représente un mécanisme de butée escamotable du cache de la figure 1 ;
  • la figure 9 est une vue de coté à plus grande échelle qui représente le mécanisme de butée escamotable de la figure 1 dans un premier mode d'utilisation du projecteur lorsque le cache est dans sa première position angulaire extrême de masquage ;
  • la figure 10 est une vue similaire à celle de la figure 9 qui représente le mécanisme de butée escamotable dans le premier mode d'utilisation du projecteur lorsque le cache est dans sa position angulaire extrême d'éclairage ;
  • la figure 11 est une vue similaire à celle de la figure 6 qui représente le déplacement de la butée escamotable pour faire passer le projecteur du premier mode d'utilisation à un deuxième mode d'utilisation ;
  • la figure 12 est une vue similaire à celle de la figure 9 qui représente la butée escamotable dans le deuxième mode d'utilisation lorsque le cache est dans sa deuxième position angulaire extrême de masquage ;
  • la figure 13 est une vue similaire à celle de la figure 9 qui représente la butée escamotable dans le deuxième mode d'utilisation lorsque le cache est dans sa position angulaire extrême d'éclairage ;
  • la figure 14 est une vue similaire à celle de la figure 6 qui représente une variante de l'invention ;
  • la figure 15 est une figure similaire à celle de la figure 14 qui représente une variante de l'invention.
Other features and advantages will appear during the reading of the detailed description which follows for the understanding of which reference will be made to the appended drawings among which:
  • FIG. 1 is an exploded perspective view showing a front motor vehicle headlamp comprising a cover which is made according to the teachings of the invention, the cache being in any position;
  • Figure 2 is a front view which shows the projector of Figure 1 when the cache occupies a first extreme angular position of masking;
  • Figure 3 is a longitudinal sectional view along the sectional plane 3-3 of Figure 1 which shows the projector of Figure 1 when the cache occupies its first extreme angular position of masking;
  • FIG. 4 is a view similar to that of FIG. 3 in which the cover occupies a second extreme angular position of illumination;
  • FIG. 5 is a view similar to that of FIG. 2 in which the cover occupies a second extreme angular position of masking;
  • FIG. 6 is a view similar to that of FIG. 3 in which the cover occupies its second extreme angular position of masking;
  • Figure 7 is a view identical to that of Figure 4;
  • Figure 8 is a perspective view on a larger scale which shows a retractable stop mechanism of the cover of Figure 1;
  • Fig. 9 is an enlarged side view showing the retractable stop mechanism of Fig. 1 in a first mode of use of the projector when the cover is in its first extreme angular position of masking;
  • Figure 10 is a view similar to that of Figure 9 which shows the retractable stop mechanism in the first mode of use of the projector when the cover is in its extreme angular position of illumination;
  • Figure 11 is a view similar to that of Figure 6 showing the displacement of the retractable stopper to move the projector from the first mode of use to a second mode of use;
  • Figure 12 is a view similar to that of Figure 9 which shows the retractable stop in the second mode of use when the cover is in its second extreme angular position of masking;
  • Figure 13 is a view similar to that of Figure 9 which shows the retractable stop in the second mode of use when the cover is in its extreme angular position of illumination;
  • Figure 14 is a view similar to that of Figure 6 which shows a variant of the invention;
  • Figure 15 is a figure similar to that of Figure 14 which shows a variant of the invention.

Dans la suite de la description, on adoptera à titre non limitatif une orientation longitudinale dirigée d'arrière en avant, une orientation transversale dirigée de gauche à droite et une orientation verticale dirigée de bas en haut qui sont indiquées par le trièdre L,V,T de la figure 1.In the remainder of the description, a longitudinal orientation directed from back to front, a transverse orientation directed from left to right and a vertical orientation directed from bottom to top, which are indicated by the trihedron L, V, will be adopted without limitation. T of Figure 1.

Par la suite, des éléments identiques, analogues ou similaires seront désignés par des mêmes numéros de référence.Subsequently, identical, similar or similar elements will be designated by the same reference numbers.

On a représenté à la figure 1 un projecteur 20 qui est destiné à être agencé dans un véhicule automobile, par exemple à l'avant du véhicule.There is shown in Figure 1 a projector 20 which is intended to be arranged in a motor vehicle, for example at the front of the vehicle.

Le projecteur 20 comporte un réflecteur 22 dont la surface optique active interne 24 a une forme globalement ellipsoïdale et qui comporte une ouverture avant 25. L'axe optique "A" du réflecteur 22 a une orientation longitudinale. Comme représenté à la figure 3, le réflecteur 22 comporte un premier foyer arrière "F1" et un deuxième foyer avant "F2" qui sont agencés sur l'axe optique "A".The projector 20 comprises a reflector 22 whose inner active optical surface 24 has a generally ellipsoidal shape and which has a front opening 25. The optical axis "A" of the reflector 22 has a longitudinal orientation. As shown in FIG. 3, the reflector 22 comprises a first rear focus "F1" and a second front focus "F2" which are arranged on the optical axis "A".

Une source lumineuse 26 est agencée au voisinage du premier foyer "F1", à l'intérieur du réflecteur 22. Il s'agit ici d'une lampe à décharge 26 qui est montée dans le réflecteur 22 par l'intermédiaire d'un orifice de montage prévue au sommet arrière 28 du réflecteur 22.A light source 26 is arranged in the vicinity of the first focus "F1", inside the reflector 22. This is a discharge lamp 26 which is mounted in the reflector 22 via an orifice mounting provided at the rear vertex 28 of the reflector 22.

Le projecteur 20 comporte aussi un manchon intermédiaire 30 de forme globalement tronconique convergeant vers l'avant qui est coaxial à l'axe optique "A". L'extrémité arrière 32 du manchon 30 comporte une ouverture arrière 33 dont le contour correspond au contour de l'ouverture avant 25 du réflecteur 22. Le manchon 30 est destiné à être fixé sur le pourtour de l'ouverture avant 25 du réflecteur 22. A cet effet, l'extrémité arrière du manchon 30 comporte une collerette 32.The projector 20 also comprises an intermediate sleeve 30 of generally frustoconical shape converging towards the front which is coaxial with the optical axis "A". The rear end 32 of the sleeve 30 has a rear opening 33 whose contour corresponds to the outline of the opening The sleeve 30 is intended to be fixed around the periphery of the front opening 25 of the reflector 22. For this purpose, the rear end of the sleeve 30 has a flange 32.

L'extrémité avant du manchon 30 est fermée par une lentille optique avant 34 convergente. La lentille 34 est agencée de manière que son plan optique coïncide avec le deuxième foyer avant "F2" du réflecteur 22.The front end of the sleeve 30 is closed by a converging optical lens 34. The lens 34 is arranged so that its optical plane coincides with the second front focus "F2" of the reflector 22.

Ainsi, comme représenté à la figure 4, lorsque la lampe 26 est allumée, elle émet des rayons lumineux "R" dont une majeure partie est réfléchie par la paroi interne 24 du réflecteur 22 vers l'avant. La lampe 26 étant agencée au premier foyer "F1", les rayons lumineux "R" réfléchis convergent vers le deuxième foyer "F2" qui est agencé en arrière de la lentille 34. Les rayons lumineux "R" traversent ensuite la lentille 34 de manière à former un faisceau lumineux qui est dirigé vers l'avant selon la direction globale de l'axe optique "A".Thus, as shown in Figure 4, when the lamp 26 is on, it emits light rays "R", a major part is reflected by the inner wall 24 of the reflector 22 forward. The lamp 26 being arranged at the first focus "F1", the reflected light rays "R" converge towards the second focus "F2" which is arranged behind the lens 34. The light rays "R" then pass through the lens 34 to form a light beam which is directed forward in the overall direction of the optical axis "A".

Comme représenté à la figure 1, le projecteur 20 comporte aussi un cache 36. De manière connue, le cache 36 est monté pivotant autour d'un axe de rotation "B" d'orientation transversale par rapport au réflecteur 22. De manière non limitative, l'axe de rotation "B" du cache 36 n'est pas concourant avec l'axe optique "A" du réflecteur 22.As shown in FIG. 1, the projector 20 also includes a cover 36. In known manner, the cover 36 is pivotally mounted about an axis of rotation "B" of transverse orientation with respect to the reflector 22. In a nonlimiting manner the axis of rotation "B" of the cover 36 is not concurrent with the optical axis "A" of the reflector 22.

L'axe de rotation "B" est plus particulièrement agencé dans le plan vertical transversal de l'ouverture avant 25 du réflecteur, à proximité du deuxième foyer avant "F2". Comme représenté à la figure 3, l'axe de rotation "B" du cache 36 est plus particulièrement agencé légèrement en dessous du deuxième foyer avant "F2"The axis of rotation "B" is more particularly arranged in the transverse vertical plane of the front opening 25 of the reflector, near the second front focus "F2". As shown in FIG. 3, the axis of rotation "B" of the cover 36 is more particularly arranged slightly below the second front focus "F2"

Le cache 36 comporte une première aile 38 et une deuxième aile 40 adjacentes. Chaque aile 38, 40 s'étend radialement depuis l'axe de rotation "B". La largeur transversale des ailes 38, 40 est sensiblement égale au diamètre transversal de l'ouverture 25 du réflecteur 22 à la hauteur du deuxième foyer "F2".The cover 36 has a first flange 38 and a second flange 40 adjacent. Each wing 38, 40 extends radially from the axis of rotation "B". The transverse width of the flanges 38, 40 is substantially equal to the transverse diameter of the opening 25 of the reflector 22 at the height of the second focus "F2".

Les ailes 38, 40 se rejoignent en formant un angle au niveau de l'axe de rotation "B" du cache 36. Les ailes 38, 40 forment ici un angle droit de manière que la deuxième aile 40 soit agencée sensiblement à 90° par rapport à la première aile 38 suivant un sens de rotation anti-horaire en se reportant à la figure 1.The wings 38, 40 meet at an angle at the axis of rotation "B" of the cover 36. The wings 38, 40 here form a right angle so that the second flange 40 is arranged substantially at 90 ° relative to the first flange 38 in a counterclockwise direction of rotation with reference to FIG.

Chaque aile 38, 40 comporte au moins une partie active opaque qui est destinée à empêcher une partie des rayons lumineux "R" de la traverser lorsque l'aile 38, 40 est interposée verticalement entre la lampe 26 et le deuxième foyer "F2".Each wing 38, 40 has at least one opaque active portion which is intended to prevent a portion of the light rays "R" to cross when the wing 38, 40 is interposed vertically between the lamp 26 and the second home "F2".

Le pivotement du cache 36 autour de son axe de rotation "B" est ici commandé par un moteur électrique 42 qui est agencé à l'extérieur à droite du réflecteur 22, comme illustré à la figure 1. Bien entendu, le moteur 42 pourrait être agencé à gauche du réflecteur 22.The pivoting of the cover 36 around its axis of rotation "B" is here controlled by an electric motor 42 which is arranged outside to the right of the reflector 22, as shown in FIG. 1. Of course, the motor 42 could be arranged to the left of the reflector 22.

De manière connue, un tel projecteur 20 est susceptible d'être commandé selon deux modes d'utilisation en fonction du sens de trafic des véhicules, à gauche de la route ou à droite de la route.In known manner, such a projector 20 is likely to be controlled according to two modes of use depending on the traffic direction of the vehicles to the left of the road or to the right of the road.

Selon un premier mode d'utilisation, le cache 36 est commandé entre une première position angulaire extrême de masquage qui est représentée à la figure 3 dans laquelle la première aile 38 s'étend verticalement vers le haut depuis l'axe de rotation "B" du cache 36 de manière à masquer une première partie des rayons lumineux "R", et une position angulaire extrême d'éclairage qui est représentée à la figure 4 dans laquelle aucune des ailes 38, 40 ne masque les rayons lumineux "R".According to a first mode of use, the cover 36 is controlled between a first extreme angular position of masking which is represented in FIG. 3 in which the first wing 38 extends vertically upward from the axis of rotation "B" of the cover 36 so as to mask a first portion of the light rays "R", and an extreme angular illumination position which is shown in Figure 4 in which none of the wings 38, 40 mask the light rays "R".

Comme représenté à la figure 3, lorsque le cache 36 est dans sa première position angulaire extrême de masquage, la deuxième aile 40 s'étend horizontalement vers l'arrière depuis l'axe de rotation "B" du cache 36. Comme représenté à la figure 4, lorsque le cache 36 est dans sa position angulaire extrême d'éclairage, la deuxième aile 40 s'étend horizontalement vers l'avant depuis l'axe de rotation "B" du cache 36.As shown in FIG. 3, when the cover 36 is in its first extreme angular masking position, the second flange 40 extends horizontally rearwardly from the axis of rotation "B" of the cover 36. As shown in FIG. 4, when the cover 36 is in its extreme angular illumination position, the second flange 40 extends horizontally forwardly from the axis of rotation "B" of the cover 36.

Dans le mode de réalisation représenté aux figures, le cache 36 pivote de 180°, dans un sens horaire en se reportant aux figures 3 et 4, lors de son passage depuis la première position angulaire extrême de masquage jusqu'à sa position angulaire extrême d'éclairage.In the embodiment shown in the figures, the cover 36 rotates 180 °, in a clockwise direction with reference to FIGS. 3 and 4, during its passage from the first extreme angular position of masking to its extreme angular position. 'lighting.

Comme représenté à la figure 2, le bord d'extrémité supérieur 44 de la première aile 38 est ici profilé asymétriquement de manière à masquer les rayons lumineux supérieurs susceptibles d'être orientés vers la partie gauche de la route.As shown in Figure 2, the upper end edge 44 of the first flange 38 is here profiled asymmetrically so as to hide the upper light rays may be oriented towards the left side of the road.

Ainsi, la première position angulaire extrême de masquage correspond à une utilisation du projecteur 20 en feu de croisement lorsque le véhicule roule à droite de la route, tandis que la position angulaire extrême d'éclairage correspond à une utilisation du projecteur 20 en feu de route.Thus, the first extreme angular position of masking corresponds to a use of the projector 20 in low beam when the vehicle rolls to the right of the road, while the extreme angular position of illumination corresponds to a use of the projector 20 in high beam .

Selon un deuxième mode d'utilisation du projecteur 20, le cache 36 est commandé entre une deuxième position angulaire extrême de masquage qui est représentée à la figure 6 dans laquelle la deuxième aile 40 s'étend verticalement vers le haut depuis l'axe de rotation "B" du cache 36 de manière à masquer une première partie des rayons lumineux "R", et une position angulaire extrême d'éclairage qui est représentée à la figure 7 dans laquelle aucune des ailes 38, 40 ne masque les rayons lumineux "R".According to a second mode of use of the projector 20, the cover 36 is controlled between a second extreme angular position of masking which is represented in FIG. 6 in which the second wing 40 extends vertically upwards from the axis of rotation. "B" of the cover 36 so as to mask a first portion of the "R" light rays, and an extreme illumination angular position which is shown in Figure 7 in which none of the wings 38, 40 mask the light rays "R" ".

Comme représenté à la figure 6, lorsque le cache 36 est dans sa deuxième position angulaire extrême de masquage, la première aile 38 s'étend horizontalement vers l'avant depuis l'axe de rotation "B" du cache 36. Comme représenté à la figure 7, lorsque le cache 36 est dans sa position angulaire extrême d'éclairage, la première aile 38 s'étend verticalement vers le bas depuis l'axe de rotation "B" du cache 36.As shown in FIG. 6, when the cover 36 is in its second extreme angular position of masking, the first flange 38 extends horizontally forwards from the axis of rotation "B" of the cover 36. As shown in FIG. 7, when the cover 36 is in its extreme angular illumination position, the first flange 38 extends vertically downwards from the axis of rotation "B" of the cover 36.

Dans le mode de réalisation représenté aux figures, le cache 36 pivote de 90°, dans un sens horaire en se reportant aux figures 6 et 7, lors de son passage de la deuxième position angulaire extrême de masquage jusqu'à sa position angulaire extrême d'éclairage.In the embodiment shown in the figures, the cover 36 pivots 90 °, in a clockwise direction with reference to FIGS. 6 and 7, during its passage from the second extreme angular position of masking to its extreme angular position. 'lighting.

Comme représenté à la figure 5, le bord d'extrémité supérieur 46 de la première aile 38 est profilé asymétriquement de manière à masquer les rayons lumineux susceptibles d'être orientés vers la partie droite de la route.As shown in Figure 5, the upper end edge 46 of the first flange 38 is profiled asymmetrically so as to hide the light rays may be oriented towards the right side of the road.

Ainsi, la deuxième position angulaire extrême de masquage correspond à une utilisation du projecteur 20 en feu de croisement lorsque le véhicule roule à gauche de la route, tandis que la position angulaire extrême d'éclairage correspond à une utilisation du projecteur 20 en feu de route.Thus, the second extreme angular position masking corresponds to a use of the projector 20 at low beam when the vehicle rolls to the left of the road, while the extreme angular position of illumination corresponds to a use of the projector 20 in high beam .

La deuxième position angulaire extrême de masquage est intercalée entre la première position angulaire extrême de masquage et la position angulaire extrême d'éclairage. Ainsi, dans le premier mode d'utilisation du projecteur 20, lorsque le cache 36 est commandé depuis sa première position angulaire extrême de masquage jusqu'à sa position angulaire extrême d'éclairage, il pivote autour de son axe de rotation "B" dans un sens horaire selon la figure 3. Lors de son pivotement, le cache 36 est amené à passer sans s'arrêter par sa deuxième position angulaire extrême de pivotement. Cependant, ce passage étant très rapide, le masquage partiel du faisceau lumineux par la deuxième aile 40 est imperceptible par les usagers de la route.The second extreme angular position of masking is interposed between the first extreme angular position of masking and the position extreme angular lighting. Thus, in the first mode of use of the projector 20, when the cover 36 is controlled from its first extreme angular position of masking to its extreme angular position of illumination, it pivots about its axis of rotation "B" in a clockwise movement according to Figure 3. When pivoted, the cover 36 is passed without stopping by its second extreme angular position of pivoting. However, this passage being very fast, partial masking of the light beam by the second wing 40 is imperceptible by road users.

Le cache 36 comporte aussi des moyens pour borner son pivotement entre sa première position angulaire extrême de masquage et sa position angulaire extrême d'éclairage.The cover 36 also comprises means for limiting its pivoting between its first extreme angular position of masking and its extreme angular position of illumination.

A cet effet, l'axe de rotation "B" porte un premier et un deuxième bras radiaux 48, 50. Les bras 48, 50 sont ici agencées sur une portion d'extrémité gauche de l'axe de rotation "B" du cache 36 selon la figure 1, à l'extérieur du réflecteur 22. Ils sont solidaires en rotation avec les ailes 38, 40. Chaque bras 48, 50 est destinée à coopérer respectivement avec une première butée angulaire 52 et une deuxième butée angulaire 54 qui sont solidaires du réflecteur 22.For this purpose, the axis of rotation "B" carries a first and a second radial arm 48, 50. The arms 48, 50 are here arranged on a left end portion of the axis of rotation "B" of the cache 36 according to Figure 1, outside the reflector 22. They are integral in rotation with the wings 38, 40. Each arm 48, 50 is intended to cooperate respectively with a first angular stop 52 and a second angular stop 54 which are integral with the reflector 22.

Une cornière 56 s'étend transversalement vers la gauche depuis une paroi latérale verticale gauche du réflecteur 22. La cornière 56 comporte une aile supérieure horizontale dont la face supérieure 55 porte la première butée angulaire 52, et elle comporte une deuxième aile verticale transversale qui s'étend vers le bas depuis le bord d'extrémité avant de l'aile supérieure dont la face avant 57 porte la deuxième butée angulaire 54.An angle 56 extends transversely to the left from a vertical left side wall of the reflector 22. The bracket 56 comprises a horizontal upper wing whose upper face 55 carries the first angular stop 52, and it comprises a second transverse vertical wing which extends downwards from the front end edge of the upper wing whose front face 57 carries the second angular stop 54.

Le cache 36 comporte aussi des moyens de rappel élastique 58 vers sa première position angulaire extrême de masquage. Il s'agit ici d'un ressort hélicoïdal de torsion 58 qui entoure l'axe de rotation "B" du cache 36. Le ressort 58 est plus particulièrement interposé transversalement entre les bras 48, 50 et le réflecteur 22. Une première patte d'extrémité 60 du ressort 58 est fixée au réflecteur 22 et une deuxième patte d'extrémité 62 du ressort 58 est fixée au premier bras 48. Ainsi, si le moteur électrique 42 est défaillant, le cache 36 est élastiquement rappelé vers sa première position angulaire extrême de masquage de manière que le projecteur 20 émette un faisceau de feu de croisement non éblouissant.The cover 36 also has elastic return means 58 towards its first extreme angular position of masking. This is a helical torsion spring 58 which surrounds the axis of rotation "B" of the cover 36. The spring 58 is more particularly interposed transversely between the arms 48, 50 and the reflector 22. A first leg of 60 end of the spring 58 is fixed to the reflector 22 and a second end tab 62 of the spring 58 is fixed to the first arm 48. Thus, if the electric motor 42 is faulty, the cover 36 is elastically recalled towards its first extreme angular position of masking so that the projector 20 emits a beam of crossing beam no glare.

Selon les enseignements de l'invention, le projecteur 20 comporte un mécanisme de changement de mode de fonctionnement 64 qui est ici agencé à gauche du réflecteur 22 en se reportant à la figure 1.According to the teachings of the invention, the projector 20 comprises an operating mode change mechanism 64 which is here arranged to the left of the reflector 22 with reference to FIG.

On a représenté le mécanisme de changement de mode de fonctionnement 64 plus en détail à la figure 8. Ainsi, le mécanisme de changement de mode de fonctionnement 64 comporte un doigt escamotable 66 d'axe principal d'orientation longitudinale.The operation mode changing mechanism 64 is shown in more detail in FIG. 8. Thus, the operating mode changing mechanism 64 includes a retractable finger 66 of longitudinal orientation main axis.

Le doigt 66 comporte une face horizontale inférieure 68 qui est destinée à former butée escamotable 68. L'extrémité avant 70 du doigt 66 comporte une face hémicylindrique convexe d'axe transversale qui est agencée dans le prolongement de la face de butée 68 sans former d'angle vif. Cette face avant 70 sera par la suite appelée face de poussée 70.The finger 66 has a lower horizontal face 68 which is intended to form a retractable stopper 68. The front end 70 of the finger 66 has a convex hemi-cylindrical face of transverse axis which is arranged in the extension of the abutment face 68 without forming a groove. 'sharp corner. This front face 70 will subsequently be called the thrust face 70.

Le doigt 66 est monté coulissant longitudinalement par rapport au réflecteur 22 entre une position escamotée arrière dans laquelle la face avant de poussée 70 du doigt 66 est agencé en arrière de l'axe de rotation "B" du cache 36 et une position active avant dans laquelle une face inférieure de butée 68 du doigt 66 est susceptible de limiter le pivotement du cache 36 autour de son axe de rotation "B".The finger 66 is slidably mounted longitudinally with respect to the reflector 22 between a retracted rear position in which the forward thrust face 70 of the finger 66 is arranged behind the axis of rotation "B" of the cover 36 and a forward active position in which a lower abutment face 68 of the finger 66 is likely to limit the pivoting of the cover 36 about its axis of rotation "B".

Le doigt 66 est ici monté coulissant longitudinalement sur la surface horizontale 55 de la cornière 56. A cet effet, l'extrémité arrière du doigt 66 est portée par un coulisseau 72 qui est monté coulissant dans une boutonnière 74 d'orientation longitudinale qui est formée dans la surface supérieure 55 de la cornière 56. Dans le mode de réalisation représenté aux figures, le doigt 66 est réalisé venu de matière avec le coulisseau 72.The finger 66 is here mounted sliding longitudinally on the horizontal surface 55 of the bracket 56. For this purpose, the rear end of the finger 66 is carried by a slide 72 which is slidably mounted in a buttonhole 74 of longitudinal orientation which is formed in the upper surface 55 of the angle iron 56. In the embodiment shown in the figures, the finger 66 is made integrally with the slide 72.

Par ailleurs, l'axe de rotation "B" du cache 36 porte ici à son extrémité gauche un élément cylindrique de basculement 76 qui est coaxial à l'axe de rotation "B" du cache 36. L'élément de basculement 76 est solidaire en rotation de l'axe de rotation "B" du cache 36. L'élément de basculement 76 comporte un ergot qui s'étend globalement radialement par rapport à l'axe de rotation "B". L'ergot comporte une face radiale d'appui 78 qui est ici tangente à la face cylindrique de l'élément de basculement 76.Furthermore, the axis of rotation "B" of the cover 36 carries here at its left end a cylindrical tilting element 76 which is coaxial with the axis of rotation "B" of the cover 36. The tilting element 76 is integral. in rotation of the axis of rotation "B" of the cover 36. The tilting element 76 has a lug which extends radially generally relative to the axis of rotation "B". The lug comprises a radial bearing face 78 which is here tangent to the cylindrical face of the tilting element 76.

Comme représenté à la figure 9, lorsque le cache 36 est dans sa première position angulaire extrême de masquage, la face d'appui 78 s'étend dans un plan vertical transversal et elle est orientée vers l'arrière.As shown in FIG. 9, when the cover 36 is in its first extreme angular masking position, the bearing face 78 extends in a transverse vertical plane and is directed towards the rear.

On décrit à présent le fonctionnement d'un tel projecteur 20.The operation of such a projector 20 is now described.

Dans le premier mode de d'utilisation du cache 36, le doigt 66 est en position arrière escamotée. Le cache 36 est ainsi libre de pivoter entre sa première position angulaire extrême de masquage et sa position angulaire extrême d'éclairage.In the first mode of use of the cover 36, the finger 66 is in the retracted retracted position. The cover 36 is thus free to pivot between its first extreme angular position of masking and its extreme angular position of illumination.

Comme représenté à la figure 9, dans la première position angulaire extrême de masquage du cache 36, le premier bras 58 est élastiquement maintenu en appui contre la première butée angulaire 52 par le ressort de rappel 58. La face d'appui 78 de l'élément de basculement 76 est alors agencée en vis-à-vis de la face avant de poussée 70 du doigt 66.As represented in FIG. 9, in the first extreme angular position of masking of the cover 36, the first arm 58 is elastically held in abutment against the first angular stop 52 by the return spring 58. The bearing face 78 of the tilting element 76 is then arranged vis-à-vis the front thrust 70 of the finger 66.

Selon une variante non représentée de l'invention, la face d'appui 78 est en butée contre la face avant de poussée 70 du doigt 66 en position arrière escamotée. Le premier bras 48 n'est alors plus nécessaire pour limiter le pivotement du cache 36 vers sa première position angulaire extrême de masquage.According to a not shown variant of the invention, the bearing face 78 abuts against the front thrust face 70 of the finger 66 in the retracted retracted position. The first arm 48 is then no longer necessary to limit the pivoting of the cover 36 towards its first extreme angular position of masking.

Lorsque le conducteur du véhicule commande le cache vers sa position extrême angulaire d'éclairage, le moteur 42 entraîne le cache 36 en pivotement autour de son axe de rotation "B" dans un sens horaire selon la figure 4 jusqu'à sa position angulaire extrême d'éclairage. Comme représenté à la figure 10, le deuxième bras 50 du cache 36 est alors en contact avec la deuxième butée angulaire 54.When the driver of the vehicle controls the cover towards its angular extreme illumination position, the motor 42 drives the cover 36 pivoting about its axis of rotation "B" in a clockwise direction according to FIG. 4 to its extreme angular position. lighting. As represented in FIG. 10, the second arm 50 of the cover 36 is then in contact with the second angular stopper 54.

Le cache 36 est ensuite rappelé élastiquement vers sa première position angulaire extrême de masquage par le ressort de rappel 58.The cover 36 is then resiliently biased towards its first extreme angular position of masking by the return spring 58.

Lorsque le projecteur 20 doit basculer vers son deuxième mode d'utilisation, le doigt 66 est commandé vers sa position active avant. Le cache 36 est alors entraîné en pivotement depuis sa première position angulaire extrême de masquage jusqu'à sa deuxième position angulaire extrême de masquage par le coulissement du doigt 66 depuis sa position arrière escamotée jusqu'à sa position avant active.When the projector 20 is to switch to its second mode of use, the finger 66 is controlled to its active position before. The cover 36 is then pivoted from its first position extreme masking angle to its second extreme angular position of masking by the sliding of the finger 66 from its retracted rear position to its active forward position.

Comme représenté à la figure 11, lors du coulissement longitudinal du doigt 66 vers l'avant, la face avant de poussée 70 du doigt 66 entre en contact avec la face d'appui 78 de l'élément de basculement 76 qui s'étend alors verticalement. Puis le doigt 66 fait basculer la face d'appui 78 de manière à entraîner le cache 36 en pivotement autour de son axe de rotation "B".As shown in FIG. 11, during the longitudinal sliding of the finger 66 towards the front, the front push face 70 of the finger 66 comes into contact with the bearing face 78 of the tilting element 76 which then extends vertically. Then the finger 66 tilts the bearing face 78 so as to cause the cover 36 to pivot about its axis of rotation "B".

Le mouvement de pivotement du cache 36 est réalisé à l'encontre de la force de rappel exercé par le ressort 58.The pivoting movement of the cover 36 is made against the restoring force exerted by the spring 58.

Le profil convexe de la face avant de poussée 70 du doigt 66 est réalisé de manière que la face d'appui 78 roule sur la face avant de poussée 70 du doigt 66 avec un frottement très faible.The convex profile of the front thrust face 70 of the finger 66 is made so that the bearing face 78 rolls on the front face of the thrust 70 of the finger 66 with a very low friction.

La face avant de poussée 70 du doigt 66 étant agencée de manière adjacente à la face de butée 68, dans le prolongement de cette dernière, la face avant de poussée 70 guide la face d'appui 78 de l'élément de basculement 76 jusqu'à la face de butée 68 du doigt 66 lors du déplacement du doigt 66 depuis sa position arrière escamotée jusqu'à sa position avant active.The front push face 70 of the finger 66 being arranged adjacent to the abutment face 68, in the extension thereof, the forward thrust face 70 guides the bearing face 78 of the tilting element 76 to at the abutment face 68 of the finger 66 during the movement of the finger 66 from its retracted rear position to its active forward position.

Puis, comme représenté à la figure 12, lorsque le cache 36 a atteint sa deuxième position angulaire extrême de masquage, la face d'appui 78 s'étend horizontalement. La face inférieure de butée 68 du doigt 66 glisse alors sur la face d'appui 78. La face inférieure de butée 68 du doigt 66 est alors en appui sur toute sa surface contre la surface d'appui 78 du cache 36 de manière à limiter le pivotement du cache 36.Then, as shown in FIG. 12, when the cover 36 has reached its second extreme angular position of masking, the bearing face 78 extends horizontally. The bottom abutment face 68 of the finger 66 then slides on the bearing surface 78. The lower abutment face 68 of the finger 66 is then resting on its entire surface against the bearing surface 78 of the cover 36 so as to limit the pivoting of the cover 36.

Le cache 36 est alors maintenu élastiquement dans sa deuxième position angulaire extrême par le ressort de rappel 58.The cover 36 is then held elastically in its second extreme angular position by the return spring 58.

Lorsque le conducteur du véhicule commande le cache vers sa position extrême angulaire d'éclairage, le moteur 42 entraîne le cache 36 en pivotement autour de son axe de rotation "B" d'un angle de 90° dans un sens horaire selon la figure 7 jusqu'à sa position angulaire extrême d'éclairage. Comme représenté à la figure 10, le deuxième bras 50 du cache 36 est alors en contact avec la deuxième butée angulaire 54.When the driver of the vehicle controls the cover towards its angular illumination extreme position, the motor 42 drives the cover 36 pivoting about its axis of rotation "B" by an angle of 90 ° in a clockwise direction according to FIG. up to its extreme angular position of illumination. As represented in FIG. 10, the second arm 50 of the cover 36 is then in contact with the second angular stopper 54.

Lors du pivotement du cache 36, la paroi cylindrique de l'élément de basculement 76 est ici tangente avec la face d'appui 68 du doigt 66. Cependant, il n'est pas nécessaire que l'élément de basculement 76 soit en contact avec la face de butée 68 du doigt 68.When pivoting the cover 36, the cylindrical wall of the tilting element 76 is here tangent with the bearing face 68 of the finger 66. However, it is not necessary for the tilting element 76 to be in contact with the abutment face 68 of the finger 68.

Le cache 36 est ensuite rappelé élastiquement vers sa deuxième position angulaire extrême de masquage par le ressort de rappel 58.The cover 36 is then resiliently biased towards its second extreme angular position of masking by the return spring 58.

Le coulissement du doigt 66 peut être réaliser manuelle ou automatiquement par l'intermédiaire d'un moteur (non représenté).The sliding of the finger 66 can be performed manually or automatically by means of a motor (not shown).

Il est aussi possible de faire passer le projecteur 20 de son premier mode de fonctionnement vers son deuxième mode de fonctionnement, et vice-versa, lorsque le cache 36 est dans sa position angulaire extrême d'éclairage. Le coulissement du doigt 66 n'entraîne alors pas le cache 36 en pivotement.It is also possible to switch the projector 20 from its first operating mode to its second operating mode, and vice versa, when the cover 36 is in its extreme angular position of illumination. The sliding of the finger 66 does not then cause the cover 36 to pivot.

Selon une variante non représentée de l'invention, le doigt 66 est fixé sur un levier qui est monté pivotant autour d'un axe parallèle à l'axe de rotation "B" du cache 36. Ainsi, lorsque le levier est apte à déplacer le doigt 66 depuis sa position arrière escamotée jusqu'à sa position avant active.According to a variant not shown of the invention, the finger 66 is fixed on a lever which is pivotally mounted about an axis parallel to the axis of rotation "B" of the cover 36. Thus, when the lever is able to move the finger 66 from its retracted rear position to its active forward position.

Selon une autre variante de l'invention représentée à la figure 14, le doigt 66 est remplacé par une came 80 qui est montée pivotante autour d'un axe "C" transversal parallèle à l'axe de rotation "B" du cache 36 entre une position escamotée et une position active. La tranche de la came 80 comporte la face de butée 68.According to another variant of the invention shown in Figure 14, the finger 66 is replaced by a cam 80 which is pivotally mounted about a transverse axis "C" parallel to the axis of rotation "B" of the cache 36 between a retracted position and an active position. The edge of the cam 80 has the abutment face 68.

Lorsque la came 80 est en position escamotée, la face de butée 68 est plaquée contre la face d'appui 78 du cache 36 dans sa première position angulaire extrême de masquage.When the cam 80 is in the retracted position, the abutment face 68 is pressed against the bearing face 78 of the cover 36 in its first extreme angular position masking.

Lorsque la came 80 pivote dans un sens horaire selon la figure 14, la face de butée 68 appui contre la face d'appui 78 avec glissement en entraînant le cache 36 en pivotement jusqu'à sa deuxième position angulaire extrême de masquage.When the cam 80 rotates in a clockwise direction according to Figure 14, the abutment face 68 bears against the bearing face 78 with sliding by driving the cover 36 to pivot to its second extreme angular position of masking.

L'invention n'est, bien entendu, pas limitée aux modes de réalisation décrits précédemmentThe invention is, of course, not limited to the embodiments described above

Claims (10)

Projecteur (20), notamment de véhicule automobile, qui est apte à émettre un faisceau lumineux vers l'avant selon la direction globale d'un axe optique (A) longitudinal et qui comporte : - un réflecteur (22) de type elliptique qui comporte un premier foyer (F1) et un deuxième foyer (F2) qui sont agencés sur l'axe optique (A) ; - une source lumineuse (26) qui est agencée au voisinage du premier foyer (F1) ; - un cache (36) qui est agencé au voisinage du deuxième foyer (F2) et qui est monté pivotant autour d'un axe de rotation (B) orthogonal à l'axe optique (A), le pivotement du cache (36) étant susceptible d'être commandé suivant : - un premier mode d'utilisation dans lequel le cache (36) est commandé entre une première position angulaire extrême de masquage dans laquelle une première partie active (38) du cache (36) masque une première partie du faisceau lumineux et une position angulaire extrême d'éclairage dans laquelle le faisceau lumineux n'est pas masqué ; - un deuxième mode d'utilisation dans lequel le cache (36) est commandé entre une deuxième position angulaire extrême de masquage dans laquelle une deuxième partie active (40) du cache (36) masque une deuxième partie du faisceau lumineux et la position angulaire extrême d'éclairage ; la deuxième position angulaire extrême de masquage étant intercalée entre la première position angulaire extrême de masquage et la position angulaire extrême d'éclairage,
caractérisé en ce qu'il comporte une butée (68) qui est montée mobile entre une position escamotée dans laquelle le cache (36) est libre de pivoter entre sa première position angulaire extrême de masquage et sa position angulaire extrême d'éclairage, et une position active pour limiter le pivotement du cache (36) entre sa deuxième position angulaire extrême de masquage et sa position angulaire extrême d'éclairage.A projector (20), in particular a motor vehicle, which is capable of emitting a light beam forward in the overall direction of a longitudinal optical axis (A) and which comprises: a reflector (22) of elliptical type which comprises a first focus (F1) and a second focus (F2) which are arranged on the optical axis (A); - a light source (26) which is arranged in the vicinity of the first focus (F1); - a cover (36) which is arranged in the vicinity of the second focus (F2) and which is pivotally mounted about an axis of rotation (B) orthogonal to the optical axis (A), the pivoting of the cover (36) being controllable according to: a first mode of use in which the cover (36) is controlled between a first extreme angular position of masking in which a first active part (38) of the cover (36) masks a first part of the light beam and an extreme angular position lighting in which the light beam is not masked; a second mode of use in which the cover (36) is controlled between a second extreme angular position of masking in which a second active part (40) of the cover (36) masks a second part of the light beam and the extreme angular position lighting; the second extreme angular position of masking being interposed between the first extreme angular position of masking and the extreme angular position of illumination,
characterized in that it comprises a stop (68) which is movably mounted between a retracted position in which the cover (36) is free to pivot between its first extreme angular position of masking and its extreme angular position of illumination, and a active position to limit the pivoting of the cover (36) between its second extreme angular position of masking and its extreme angular position of illumination. Projecteur (20) selon la revendication précédente, caractérisé en ce que, dans sa position active, la butée (68) est susceptible d'entrer en contact avec une face radiale (78) excentrée d'appui du cache (36).Projector (20) according to the preceding claim, characterized in that , in its active position, the stop (68) is able to come into contact with a radial face (78) eccentric support of the cover (36). Projecteur (20) selon la revendication précédente, caractérisé en ce que la butée (68) est portée par un doigt (66) qui est monté mobile entre la position escamotée de la butée (68) et la position active de la butée (68), et en ce que le doigt (66) comporte une face de poussée (70) qui, lorsque le doigt (66) est déplacé depuis sa position escamotée vers sa position active, est susceptible d'entrer en contact avec la face d'appui (78) du cache (36) dans sa première position angulaire extrême de masquage de manière à faire pivoter le cache (36) vers sa deuxième position angulaire extrême de masquage.Projector (20) according to the preceding claim, characterized in that the stop (68) is carried by a finger (66) which is movably mounted between the retracted position of the stop (68) and the active position of the stop (68) , and in that the finger (66) has a thrust face (70) which, when the finger (66) is moved from its retracted position to its active position, is capable of coming into contact with the bearing face (78) of the cover (36) in its first extreme masking angular position so as to pivot the cover (36) towards its second extreme angular masking position. Projecteur (20) selon la revendication précédente, caractérisé en ce que la face de poussée (70) du doigt (66) est agencée de manière adjacente à la butée (68) de manière que la face de poussée (70) guide la face d'appui (78) du cache (36) jusqu'à la butée (68) lors du déplacement du doigt (66) depuis sa position escamotée jusqu'à sa position active.Projector (20) according to the preceding claim, characterized in that the thrust face (70) of the finger (66) is arranged adjacent to the stop (68) so that the thrust face (70) guides the face of the support (78) of the cover (36) to the stop (68) during the movement of the finger (66) from its retracted position to its active position. Projecteur (20) selon la revendication précédente, caractérisé en ce que la face de poussée (70) est profilée de manière que, lors du déplacement du doigt (66) vers sa position active, la face de poussée (70) du doigt (66) roule avec un très faible frottement sur la face d'appui (78) du cache (36).Projector (20) according to the preceding claim, characterized in that the thrust face (70) is profiled so that, during the movement of the finger (66) towards its active position, the thrust face (70) of the finger (66) ) rolls with a very low friction on the bearing face (78) of the cover (36). Projecteur (20) selon l'une quelconque des revendications 3 à 5, caractérisé en ce que, en position escamotée du doigt (66), la face d'appui (78) du cache (36) est susceptible de venir en butée contre la face de poussée (70) du doigt (66) dans la première position angulaire extrême de masquage du cache (36).Projector (20) according to any one of claims 3 to 5, characterized in that , in the retracted position of the finger (66), the bearing face (78) of the cover (36) is capable of abutting against the pushing face (70) of the finger (66) in the first extreme angular position of masking of the cover (36). Projecteur (20) selon l'une quelconque des revendications précédentes, caractérisé en ce que la butée (68) est montée coulissante entre sa position escamotée et sa position active selon une direction sensiblement orthogonale à l'axe de rotation (B) du cache (36).Projector (20) according to any one of the preceding claims, characterized in that the stop (68) is slidably mounted between its retracted position and its active position in a direction substantially orthogonal to the axis of rotation (B) of the cover ( 36). Projecteur (20) selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la butée (68) est montée pivotante autour d'un axe (C) sensiblement parallèle à l'axe de rotation (B) du cache (36), entre sa position escamotée et sa position active.Projector (20) according to any one of claims 1 to 6, characterized in that the stop (68) is pivotally mounted around a axis (C) substantially parallel to the axis of rotation (B) of the cover (36), between its retracted position and its active position. Projecteur (20) selon la revendication précédente prise en combinaison avec la revendication 4, caractérisé en ce que le doigt (66) est une came (80) qui coopère avec la face d'appui (78) du cache (36) qui forme un suiveur de came.Projector (20) according to the preceding claim taken in combination with claim 4, characterized in that the finger (66) is a cam (80) which cooperates with the bearing face (78) of the cover (36) which forms a cam follower. Projecteur (20) selon l'une quelconque des revendications précédentes, caractérisé en ce que le cache (36) comporte des moyens élastiques de rappel (58) vers sa première position angulaire extrême.Projector (20) according to any one of the preceding claims, characterized in that the cover (36) comprises elastic return means (58) to its first extreme angular position.
EP06291392A 2005-09-20 2006-09-01 Headlamp comprising a shade controlled between two operating modes by means of a retractable stop Ceased EP1764550B1 (en)

Applications Claiming Priority (1)

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FR0509603A FR2891045B1 (en) 2005-09-20 2005-09-20 PROJECTOR COMPRISING A CACHE CONTROLLING BETWEEN TWO MODES OF USE BY MEANS OF A RECOVERABLE STOP.

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EP1764550A1 true EP1764550A1 (en) 2007-03-21
EP1764550B1 EP1764550B1 (en) 2011-10-05

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AT (1) ATE527494T1 (en)
FR (1) FR2891045B1 (en)

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Publication number Priority date Publication date Assignee Title
DE102009027711A1 (en) 2008-08-13 2010-04-01 Saia-Burgess Murten Ag Adjusting device for adjusting screen in headlamp of motor vehicle, has three tolerance reduction units reducing tolerances in clutch between drive shaft and adjusting component, where drive shaft is provided in electric drive
WO2011081607A1 (en) 2009-12-30 2011-07-07 Hella Saturnus Slovenija, Proizvodnja Svetlobne Opreme Za Motorna In Druga Vozila, D.O.O. Motor vehicle light shield
EP2442017A1 (en) * 2010-10-18 2012-04-18 Mes S.A. Headlight for vehicles with screen actuated by means of solenoid
CN117366518A (en) * 2023-12-07 2024-01-09 哈尔滨学院 4D wisdom classroom is with teaching lamp

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US5339226A (en) * 1992-06-03 1994-08-16 Koito Manufacturing Co., Ltd. Projection head lamp for cars
DE19843287A1 (en) * 1997-09-26 1999-04-01 Valeo Vision Elliptical headlamp for cars
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DE102004025228A1 (en) * 2004-05-22 2005-12-08 Hella Kgaa Hueck & Co. Headlamp for vehicle, has electrical actuator having spool as stator and spring unit for adjustment of rotor and aperture shaft in three predetermined rotary positions around same angle of rotation i.e. acute angle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5339226A (en) * 1992-06-03 1994-08-16 Koito Manufacturing Co., Ltd. Projection head lamp for cars
DE19843287A1 (en) * 1997-09-26 1999-04-01 Valeo Vision Elliptical headlamp for cars
DE10334553A1 (en) * 2003-07-30 2005-06-16 Hella Kgaa Hueck & Co. Vehicle headlamp, especially for motor vehicles, has arrangement for operating and locking stop in two opposing operating positions with operating element fixed to shaft with two stops in operating positions of stop, latching element(s)
DE102004025228A1 (en) * 2004-05-22 2005-12-08 Hella Kgaa Hueck & Co. Headlamp for vehicle, has electrical actuator having spool as stator and spring unit for adjustment of rotor and aperture shaft in three predetermined rotary positions around same angle of rotation i.e. acute angle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009027711A1 (en) 2008-08-13 2010-04-01 Saia-Burgess Murten Ag Adjusting device for adjusting screen in headlamp of motor vehicle, has three tolerance reduction units reducing tolerances in clutch between drive shaft and adjusting component, where drive shaft is provided in electric drive
WO2011081607A1 (en) 2009-12-30 2011-07-07 Hella Saturnus Slovenija, Proizvodnja Svetlobne Opreme Za Motorna In Druga Vozila, D.O.O. Motor vehicle light shield
EP2442017A1 (en) * 2010-10-18 2012-04-18 Mes S.A. Headlight for vehicles with screen actuated by means of solenoid
ITAN20100181A1 (en) * 2010-10-18 2012-04-19 Mes Sa HEADLIGHT FOR VEHICLES EQUIPPED WITH A SCREEN OPERATED BY SOLENOID.
CN117366518A (en) * 2023-12-07 2024-01-09 哈尔滨学院 4D wisdom classroom is with teaching lamp
CN117366518B (en) * 2023-12-07 2024-02-09 哈尔滨学院 4D wisdom classroom is with teaching lamp

Also Published As

Publication number Publication date
ATE527494T1 (en) 2011-10-15
FR2891045A1 (en) 2007-03-23
EP1764550B1 (en) 2011-10-05
FR2891045B1 (en) 2007-11-02

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