EP2379941B1 - Motor vehicle lighting unit with functional dividing panel secured to its main wall by being pressed firmly against it under elastic stress. - Google Patents

Motor vehicle lighting unit with functional dividing panel secured to its main wall by being pressed firmly against it under elastic stress. Download PDF

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Publication number
EP2379941B1
EP2379941B1 EP09806095.7A EP09806095A EP2379941B1 EP 2379941 B1 EP2379941 B1 EP 2379941B1 EP 09806095 A EP09806095 A EP 09806095A EP 2379941 B1 EP2379941 B1 EP 2379941B1
Authority
EP
European Patent Office
Prior art keywords
lighting unit
main wall
fixing means
unit according
mf1j
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.)
Not-in-force
Application number
EP09806095.7A
Other languages
German (de)
French (fr)
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EP2379941A1 (en
Inventor
Rodolphe Peron
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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Filing date
Publication date
Application filed by Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP2379941A1 publication Critical patent/EP2379941A1/en
Application granted granted Critical
Publication of EP2379941B1 publication Critical patent/EP2379941B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/104—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using feather joints, e.g. tongues and grooves, with or without friction
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/39—Attachment thereof
    • F21S41/395—Attachment thereof specially adapted to extension reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/50—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
    • F21S43/51—Attachment thereof

Definitions

  • the invention relates to motor vehicle light units providing at least two photometric functions.
  • Certain motor vehicle light units comprise a main wall which defines, on the one hand, a reflector providing a first photometric function, and, on the other hand, at least a portion of an area (possibly another reflector) which is located at side of the reflector and which at least partially provides a second photometric function.
  • These optical blocks also comprise an ice placed in front of at least one reflector and possibly a mask interposed between the ice and at least one reflector.
  • photometric function is used herein to mean a function that makes it possible to orient (for example reflect forward) and / or to color the light that is emitted by a lamp (internal).
  • mask means a part that defines in particular a part of the style of the optical block. It is usually metallized and placed behind the ice so that at least its front part is visible from the outside.
  • the inner face of the ice includes fixing lugs which make it possible to immobilize the metal partition wall.
  • the separator plate being in contact with the ice, when the vehicle circulates the vibrations and / or shocks induce not only stresses on the ice but also noise.
  • the realization of the fixing lugs on the ice generally induces what the skilled person calls retards (local injection defects) which are visible from outside the optical block.
  • Document is also known EP1882881 , a metal plate disposed at the rear of the main wall of the optical unit to play only a role of heat sink, without visible influence on the style of the vehicle.
  • the invention therefore aims to improve the quality of the optical block.
  • the object of the invention is to propose an optical block (BO) intended to be implanted in a motor vehicle and providing at least two neighboring photometric functions.
  • BO optical block
  • the optical unit is a headlight (or front projector) intended to be installed in the front of a motor vehicle.
  • the invention is not limited to this type of implantation. It also relates to certain optical blocks, such as signal rear lamps, intended to be installed in the rear of a motor vehicle.
  • Such an optical block BO comprises in particular a main wall PP, a metal plate PM functional separation, a mirror (not shown), and a possible mask (not shown).
  • the main wall PP defines a cavity subdivided into at least two parts.
  • the first part constitutes a part of a first reflector R1 intended to provide a first photometric function
  • the second part constitutes at least a part of an area R2 situated next to the first reflector R1 and intended to ensure at least partially a second photometric function.
  • the part of the main wall PP which defines the first reflector R1 comprises a central opening 01 intended to receive a transmitting part of a lamp (or bulb) L1.
  • this main wall portion PP comprises an internal face FIP which is shaped and processed (for example metallized) so as to reflect forwards the light which is emitted by the lamp L1.
  • This predetermined reflection function (and therefore shaping light) is at least partially the first photometric function of the first reflector R1.
  • the zone R2 which is defined by the main wall PP constitutes for example at least a part of a second reflector. As illustrated on Figures 1 and 2 , this zone (or second reflector) R2 comprises a central opening 02 intended to receive a transmitting part of a lamp (or bulb) L2.
  • the inner face FIP of the main wall portion PP which at least partially defines the second reflector R2 is shaped and processed (for example metallized) so as to reflect forwards the light which is emitted by the lamp L2.
  • This predetermined reflection function (and therefore the shaping of the light) constitutes at least partially the second photometric function of the second reflector (or zone) R2.
  • the term "internal face” the FIP face of the main wall PP which defines the interior of the aforementioned cavity.
  • external face is understood to mean the FEP face (see figure 13 ) of the main wall PP which defines the outside of the aforementioned cavity.
  • the cavity (delimited by the main wall PP) houses a metal plate PM in a position which ensures separation of the first and second photometric functions.
  • the joining of this metal plate PM to the main wall PP is by stress plating in a first direction D1 by cooperation of the first fixing means MF1j of the main wall PP and second fixing means MF2j of the metal plate PM on which we will come back later.
  • This first direction D1 is substantially parallel to the vertical direction once the optical block BO installed in a motor vehicle.
  • the metal plate PM is arranged to participate at least in the first photometric function. It can also and possibly participate in the second photometric function.
  • the metal plate PM may for example be stamped so as to define steps or stair steps each having (e) a chosen inclination adapted to the photometric function to ensure.
  • the metal plate PM comprises a rear portion PRP, which is placed in the bottom of the cavity (in the vicinity of the central opening O1), and a front portion PVP, which is located just before the inner face of the mask M (when it is planned) or just before the inner face of the ice (in the absence of a mask). It is recalled that the ice is usually placed in front of at least the first reflector R1 and that the optional mask is interposed between the ice and at least the second reflector R2. The ice and the possible mask M are secured to the main wall PP.
  • the main wall PP and the metal plate PM respectively comprise first MF1j and second MF2j fixing means which cooperate together, for the purpose of securing them to one another by plating. under stress, without the PVP front portion of the metal plate PM is in contact with the inner face of the mask or ice.
  • the second fixing means MF2j can be arranged in the form of at least two pressed elastic tabs.
  • the use of elastic tabs is particularly advantageous because it makes it possible to catch any games induced by local dimensional variations.
  • the metal plate PM could comprise two, three or five, or even more than five second attachment means MF2j.
  • the four second fixing means MF2j are respectively defined on the peripheral edge of the metal plate PM, in four different zones Zj.
  • the first Z1 and second Z2 areas are located in the front portion PVP of the metal plate PM, while the third Z3 and fourth Z4 areas are located in the rear portion PRP of the metal plate PM.
  • the respective orientations and shapes of the elastic tabs MF2j depend on the locations where the second corresponding fastening means MF1j of the main wall PP are defined.
  • the first elastic lug MF21 (see figures 3 , 5 and 6 ) is folded towards the lower face FI of the metal plate PM, which is oriented towards the second reflector R2, while the second MF22 (see Figures 3, 4 and 7 ), third MF23 (see Figures 3, 4 and 10 ), and fourth MF24 (see Figures 3, 4 and 11 ) elastic tabs are inclined on the side of the upper face FS of the metal plate PM, which is oriented towards the first reflector R1.
  • the elastic tabs MF2j may comprise at least one local deformation DL, preferably semi-spherical (for example half-spheres), intended to promote their plating against a part of the corresponding first fixing means MF1j.
  • This local deformation DL is obtained by stamping.
  • the first MF21, second MF22 and third MF23 elastic tabs each comprise a local deformation (semi-spherical) DL concave or convex type
  • the fourth elastic tab MF24 comprises a first local deformation (semi -spherical) DL concave type and a second local deformation (semi-spherical) DL convex type (for stressing of the metal plate PM in the first direction D1 in two opposite directions).
  • the number of local deformations of each elastic tab MF2j may be equal to one or two or even three.
  • other forms can be envisaged for local deformations DL.
  • they can be pyramidal (possibly truncated), for example.
  • the local deformations DL may possibly vary from one MF2j elastic lug to another MF2j '.
  • the first fastening means MF1j are arranged to cooperate respectively with the different (at least two) second fixing means MF2j corresponding.
  • the first fixing means MF1j may advantageously be in the form of housings (or cavities). This makes it possible to mask at least some of the elastic tabs MF2j, thus making them invisible from outside the optical block BO.
  • the first fixing means MF1j can be arranged in the form of a housing defined in a fixing lug PF which is secured to the main wall PP.
  • the main wall PP comprises a first zone in which is defined a fixing lug PF provided at its free end (front) of a housing MF11 defining the first fixing means and intended to house the first elastic leg MF21.
  • the first housing MF11 is here open on three sides to facilitate the introduction of the first elastic lug MF21.
  • At least one of the first fixing means MF1j may be arranged in the form of a housing defined in the main wall PP.
  • the second housing MF12 is here open on one side. It includes first F1 and second F2 faces facing each other. As illustrated, the first face F1 is preferably disoriented with respect to the second face F2 so as to push the second elastic lug MF22 to this second face F2 and thus press against the latter substantially in the first direction D1.
  • the first (upper) face F1 is provided with at least one projection (for example a counter-form) S which is oriented towards the second (lower) face F2 and intended to reinforce the plating of the second elastic tab MF22 towards this second face F2. In fact, it is the local deformation DL of the second elastic tab MF22 which is forced to contact the second face F2.
  • the first face (upper) F1 is provided with two projections (here counter shapes) S so as to promote the quality of the plating of the second elastic lug MF22 against the second face F2 of the second housing MF12.
  • the third housing MF13 is here open on three sides to facilitate the introduction of the third elastic tab MF23. It includes first F1 and second F2 faces facing each other. As illustrated, the first face F1 is preferably disoriented with respect to the second face F2 so as to push the third elastic lug MF23 to this second face F2 and thus press against the latter substantially in the first direction D1.
  • the first (upper) face F1 is provided with a single projection S which is oriented towards the second (lower) face F2 and intended to strengthen the plating of the third elastic tab MF23 to this second face F2. In fact, it is the local deformation DL of the third elastic tab MF23 which is forced to contact the second face F2.
  • the first (upper) face F1 of this third housing MF13 could be provided with two projections S, as in the case of the second housing MF12.
  • the fourth MF14 housing is here open on one side. he includes first F1 and second F2 faces facing each other. As illustrated, the first face F1 is preferably disoriented with respect to the second face F2 so as to push the fourth elastic tab MF24 to this second face F2 and thus press against the latter substantially in the first direction D1.
  • the first (upper) face F1 is provided with a single projection S which is oriented towards the second (lower) face F2 and intended to strengthen the plating of the fourth elastic tab MF24 to this second face F2. In fact, it is the local deformation DL of the fourth elastic tab MF24 which is forced to contact the second face F2.
  • the first (upper) face F1 of this fourth housing MF14 could be provided with two projections S, as in the case of the second housing MF12.
  • the metal plate PM is secured to the main wall PP by stress plating in the first direction D1, without gluing, clipping or welding, which is particularly advantageous.
  • the main wall PP comprises at least one auxiliary housing LA and the metal plate PM comprises at least one positioning tab MPk intended to be housed in a corresponding auxiliary housing LA.
  • auxiliary housing LA are through openings. But, this is not mandatory.

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

Description

L'invention concerne les blocs optiques de véhicule automobile assurant au moins deux fonctions photométriques.The invention relates to motor vehicle light units providing at least two photometric functions.

Certains blocs optiques de véhicule automobile comprennent une paroi principale qui définit, d'une part, un réflecteur assurant une première fonction photométrique, et d'autre part, au moins une partie d'une zone (éventuellement un autre réflecteur) qui est située à côté du réflecteur et qui assure au moins partiellement une seconde fonction photométrique. Ces blocs optiques comprennent également une glace placée devant au moins un réflecteur ainsi qu'éventuellement un masque intercalé entre la glace et au moins un réflecteur.Certain motor vehicle light units comprise a main wall which defines, on the one hand, a reflector providing a first photometric function, and, on the other hand, at least a portion of an area (possibly another reflector) which is located at side of the reflector and which at least partially provides a second photometric function. These optical blocks also comprise an ice placed in front of at least one reflector and possibly a mask interposed between the ice and at least one reflector.

On entend ici par « fonction photométrique » une fonction permettant d'orienter (par exemple réfléchir vers l'avant) et/ou colorer la lumière qui est émise par une lampe (interne). Par ailleurs, on entend ici par « masque » une pièce qui définit notamment une partie du style du bloc optique. Il est généralement métallisé et placé derrière la glace afin qu'au moins sa partie avant soit visible de l'extérieur.The term "photometric function" is used herein to mean a function that makes it possible to orient (for example reflect forward) and / or to color the light that is emitted by a lamp (internal). Moreover, here "mask" means a part that defines in particular a part of the style of the optical block. It is usually metallized and placed behind the ice so that at least its front part is visible from the outside.

Afin de séparer les deux fonctions photométriques précitées au sein d'un bloc optique, il a été proposé de placer dans ce dernier une paroi séparatrice.In order to separate the two aforementioned photometric functions within an optical block, it has been proposed to place in the latter a separating wall.

Par exemple, il a été proposé dans le document brevet US 4,774,637 de prolonger vers l'avant jusqu'au niveau de la glace la partie de la paroi qui définit le réflecteur et de fixer une paroi séparatrice métallique entre le masque et la glace dans le prolongement de cette partie de paroi. Dans ce cas, la face interne de la glace comprend des pattes de fixation qui permettent d'immobiliser la paroi métallique de séparation. La plaque séparatrice étant au contact de la glace, lorsque le véhicule circule les vibrations et/ou chocs induisent non seulement des contraintes sur la glace mais également du bruit. En outre, la réalisation des pattes de fixation sur la glace induit généralement ce que l'homme de l'art appelle des retassures (défauts locaux d'injection) qui sont visibles de l'extérieur du bloc optique.For example, it has been proposed in the patent document US 4,774,637 to extend forward to the ice level the part of the wall that defines the reflector and to fix a metal separating wall between the mask and the ice in the extension of this wall portion. In this case, the inner face of the ice includes fixing lugs which make it possible to immobilize the metal partition wall. The separator plate being in contact with the ice, when the vehicle circulates the vibrations and / or shocks induce not only stresses on the ice but also noise. In addition, the realization of the fixing lugs on the ice generally induces what the skilled person calls retards (local injection defects) which are visible from outside the optical block.

Il a également été proposé de fixer une paroi séparatrice en plastique moulé sur la face interne du masque de manière à prolonger jusqu'à ce dernier la partie de la paroi qui définit le réflecteur. Cette paroi séparatrice est certes métallisée afin de réfléchir la lumière, mais elle ne peut pas être conformée de manière à assurer une véritable fonction photométrique du fait qu'elle est réalisée par moulage. De ce fait, c'est la partie de la paroi qui définit le réflecteur qui doit assurer seule la fonction photométrique, ce qui constitue une contrainte de conception et de fabrication. En outre, le démoulage de la paroi séparatrice induit généralement des défauts qui peuvent être visibles de l'extérieur du bloc optique. On notera que ces défauts sont encore plus visibles après métallisation.It has also been proposed to fix a plastic separating wall molded on the inner face of the mask so as to extend until the latter the part of the wall which defines the reflector. This separating wall is certainly metallized to reflect light, but it can not be shaped to ensure a true photometric function because it is made by molding. As a result, it is the part of the wall that defines the reflector that must ensure the photometric function alone, which constitutes a design and manufacturing constraint. In addition, the demolding of the separating wall generally induces defects that can be visible from outside the optical block. It will be noted that these defects are even more visible after metallization.

On connaît également du document EP1882881 , une plaque métallique disposée à l'arrière de la paroi principale du bloc optique pour jouer uniquement un rôle de dissipateur thermique, sans influence visible au niveau du style du véhicule.Document is also known EP1882881 , a metal plate disposed at the rear of the main wall of the optical unit to play only a role of heat sink, without visible influence on the style of the vehicle.

L'invention a donc pour but d'améliorer la qualité du bloc optique.The invention therefore aims to improve the quality of the optical block.

Elle propose à cet effet un bloc optique, conforme à la partie caractérisante de la revendication 1.It proposes for this purpose an optical block, according to the characterizing part of claim 1.

Un bloc optique selon l'invention peut comporter d'autres caractéristiques qui peuvent être prises séparément ou en combinaison, et notamment :

  • ses seconds moyens de fixation peuvent être agencés sous la forme d'au moins deux pattes élastiques embouties ;
    • ➢ ces pattes élastiques peuvent comprendre au moins une déformation locale, par exemple semi-sphérique ;
      • l'une au moins des pattes élastiques peut comprendre une première déformation locale de type concave et une seconde déformation locale de type convexe ;
  • l'un au moins des premiers moyens de fixation peut être agencé sous la forme d'un logement propre à recevoir et à coopérer avec un second moyen de fixation ;
    • ➢ fun logement peut être défini dans une patte de fixation qui est solidarisée à la paroi principale ;
    • ➢ fun logement peut être défini dans la paroi principale ;
      • ce logement peut alors comprendre des première et seconde faces en regard l'une de l'autre, la première face étant munie d'au moins une saillie orientée vers la seconde face et destinée à plaquer l'un des seconds moyens de fixation vers la seconde face ;
  • la plaque métallique peut comprendre quatre seconds moyens de fixation propres à coopérer avec quatre premiers moyens de fixation ;
  • la paroi principale peut comprendre au moins un logement auxiliaire. Dans ce cas, la plaque métallique peut comprendre au moins une patte de positionnement propre à être logée dans le logement auxiliaire correspondant de manière à pré-positionner la plaque métallique par rapport à la paroi principale suivant deux directions sensiblement perpendiculaires, avant de faire coopérer ensemble les premiers et seconds moyens de fixation ;
    • ➢ la plaque métallique peut comprendre deux pattes de positionnement propres à être logées dans deux logements auxiliaires correspondants de la paroi principale ;
  • la plaque métallique peut être agencée de manière à participer au moins à la première fonction photométrique.
An optical unit according to the invention may comprise other characteristics that can be taken separately or in combination, and in particular:
  • its second fixing means can be arranged in the form of at least two pressed elastic tabs;
    • These elastic tabs may comprise at least one local deformation, for example semi-spherical;
      • at least one of the elastic tabs may comprise a first concave-type local deformation and a second convex type local deformation;
  • at least one of the first fastening means can be arranged under the form of a housing adapted to receive and cooperate with a second fixing means;
    • ➢ Fun housing can be defined in a bracket that is secured to the main wall;
    • ➢ Fun housing can be defined in the main wall;
      • this housing may then comprise first and second faces opposite one another, the first face being provided with at least one projection oriented towards the second face and intended to press one of the second fixing means towards the second face;
  • the metal plate may comprise four second fastening means adapted to cooperate with four first fixing means;
  • the main wall may comprise at least one auxiliary housing. In this case, the metal plate may comprise at least one positioning tab adapted to be housed in the corresponding auxiliary housing so as to pre-position the metal plate relative to the main wall in two substantially perpendicular directions, before cooperating together the first and second fixing means;
    • The metal plate may comprise two positioning tabs adapted to be housed in two corresponding auxiliary housings of the main wall;
  • the metal plate may be arranged to participate at least in the first photometric function.

D'autres caractéristiques et avantages de l'invention apparaîtront à l'examen de la description détaillée ci-après, et des dessins annexés, sur lesquels :

  • la figure 1 illustre schématiquement, dans une vue en perspective (côté avant), une partie d'un exemple de réalisation d'un bloc optique selon l'invention, avant solidarisation d'une plaque métallique de séparation fonctionnelle,
  • la figure 2 illustre schématiquement, dans une vue en perspective (côté avant), le bloc optique de la figure 1 après solidarisation d'un exemple de réalisation d'une plaque métallique de séparation fonctionnelle,
  • les figures 3 et 4 illustrent schématiquement, dans des vues en perspective selon deux côtés opposés, l'exemple de réalisation de plaque métallique de la figure 2,
  • la figure 5 illustre schématiquement, dans une vue en perspective (côté avant), une première zone de la plaque métallique des figures 3 et 4 dans laquelle est définie une première patte élastique,
  • la figure 6 illustre schématiquement, dans une vue en perspective (côté avant), une première partie de la paroi principale des figures 1 et 2 dans laquelle est définie une première patte de fixation coopérant avec la première patte élastique de la figure 5,
  • la figure 7 illustre schématiquement, dans une vue en perspective (côté avant), une deuxième zone de la plaque métallique des figures 3 et 4 dans laquelle est définie une deuxième patte élastique,
  • la figure 8 illustre schématiquement, dans une vue en perspective (côté avant), une deuxième partie de la paroi principale des figures 1 et 2 dans laquelle est défini un premier logement destiné à loger la deuxième patte élastique de la figure 7,
  • la figure 9 illustre schématiquement, dans une vue en perspective (côté avant), la deuxième partie de la paroi principale de la figure 8 une fois la deuxième patte élastique de la figure 7 logée dans son premier logement,
  • la figure 10 illustre schématiquement, dans une vue en perspective (côté avant), une troisième partie de la paroi principale des figures 1 et 2 dans laquelle est défini un second logement logeant une troisième patte élastique définie dans une troisième zone de la plaque métallique des figures 3 et 4,
  • la figure 11 illustre schématiquement, dans une vue en perspective, une quatrième patte élastique définie dans une quatrième zone de la plaque métallique des figures 3 et 4,
  • la figure 12 illustre schématiquement, dans une vue en perspective (côté avant), une quatrième partie de la paroi principale des figures 1 et 2 dans laquelle est défini un troisième logement logeant la quatrième patte élastique de la figure 11,
  • la figure 13 illustre schématiquement, dans une vue en perspective (côté arrière), une cinquième zone de la plaque métallique des figures 3 et 4 dans laquelle sont définies deux pattes de positionnement, et
  • la figure 14 illustre schématiquement, dans une vue en perspective (côté arrière), une cinquième partie de la paroi principale des figures 1 et 2 dans laquelle sont définis deux logements auxiliaires logeant respectivement les deux pattes de positionnement de la figure 13.
Other features and advantages of the invention will appear on examining the detailed description below, and the attached drawings, in which:
  • the figure 1 schematically illustrates, in a perspective view (front side), a portion of an embodiment of an optical block according to the invention, before joining a functional metal separation plate,
  • the figure 2 schematically illustrates, in a perspective view (front side), the optical block of the figure 1 after joining an example of realization of a functional metal separation plate,
  • the Figures 3 and 4 schematically illustrate, in perspective views on two opposite sides, the embodiment of metal plate of the figure 2 ,
  • the figure 5 schematically illustrates, in a perspective view (front side), a first zone of the metal plate of Figures 3 and 4 in which is defined a first elastic tab,
  • the figure 6 schematically illustrates, in a perspective view (front side), a first portion of the main wall of Figures 1 and 2 in which is defined a first fastening tab cooperating with the first elastic tab of the figure 5 ,
  • the figure 7 schematically illustrates, in a perspective view (front side), a second zone of the metal plate of Figures 3 and 4 in which is defined a second elastic tab,
  • the figure 8 schematically illustrates, in a perspective view (front side), a second portion of the main wall of Figures 1 and 2 in which is defined a first housing for housing the second elastic tab of the figure 7 ,
  • the figure 9 schematically illustrates, in a perspective view (front side), the second part of the main wall of the figure 8 once the second elastic leg of the figure 7 housed in his first home,
  • the figure 10 schematically illustrates, in a perspective view (front side), a third part of the main wall of Figures 1 and 2 in which is defined a second housing housing a third elastic tab defined in a third zone of the metal plate of Figures 3 and 4 ,
  • the figure 11 schematically illustrates, in a perspective view, a fourth elastic tab defined in a fourth zone of the metal plate of Figures 3 and 4 ,
  • the figure 12 schematically illustrates, in a perspective view (front side), a fourth part of the main wall of Figures 1 and 2 in which is defined a third housing housing the fourth leg elastic of the figure 11 ,
  • the figure 13 schematically illustrates, in a perspective view (rear side), a fifth zone of the metal plate of Figures 3 and 4 in which two positioning tabs are defined, and
  • the figure 14 schematically illustrates, in a perspective view (rear side), a fifth part of the main wall of Figures 1 and 2 in which are defined two auxiliary housings respectively housing the two positioning tabs of the figure 13 .

Les dessins annexés pourront non seulement servir à compléter l'invention, mais aussi contribuer à sa définition, le cas échéant.The attached drawings may not only serve to complete the invention, but also contribute to its definition, if any.

L'invention a pour but de proposer un bloc optique (BO) destiné à être implanté dans un véhicule automobile et assurant au moins deux fonctions photométriques voisines.The object of the invention is to propose an optical block (BO) intended to be implanted in a motor vehicle and providing at least two neighboring photometric functions.

Dans ce qui suit, on considère, à titre d'exemple non limitatif, que le bloc optique (BO) est un phare (ou projecteur avant) destiné à être installé à l'avant d'un véhicule automobile. Mais, l'invention n'est pas limitée à ce type d'implantation. Elle concerne également certains blocs optiques, comme par exemple des feux arrière de signalisation, destinés à être installés à l'arrière d'un véhicule automobile.In what follows, it is considered, by way of non-limiting example, that the optical unit (BO) is a headlight (or front projector) intended to be installed in the front of a motor vehicle. But, the invention is not limited to this type of implantation. It also relates to certain optical blocks, such as signal rear lamps, intended to be installed in the rear of a motor vehicle.

On se réfère tout d'abord aux figures 1 et 2 pour présenter un bloc optique BO selon l'invention.We first refer to Figures 1 and 2 to present an optical block BO according to the invention.

Un tel bloc optique BO comporte notamment une paroi principale PP, une plaque métallique PM de séparation fonctionnelle, une glace (non représentée), ainsi qu'un éventuel masque (non représenté).Such an optical block BO comprises in particular a main wall PP, a metal plate PM functional separation, a mirror (not shown), and a possible mask (not shown).

La paroi principale PP définit une cavité subdivisée en au moins deux parties. La première partie constitue une partie d'un premier réflecteur R1 destiné à assurer une première fonction photométrique, et la seconde partie constitue au moins une partie d'une zone R2 située à côté du premier réflecteur R1 et destinée à assurer au moins partiellement une seconde fonction photométrique.The main wall PP defines a cavity subdivided into at least two parts. The first part constitutes a part of a first reflector R1 intended to provide a first photometric function, and the second part constitutes at least a part of an area R2 situated next to the first reflector R1 and intended to ensure at least partially a second photometric function.

Comme illustré sur les figures 1 et 2, la partie de la paroi principale PP qui définit le premier réflecteur R1 comprend une ouverture centrale 01 destinée à recevoir une partie émettrice d'une lampe (ou ampoule) L1. Dans ce cas, cette partie de paroi principale PP comprend une face interne FIP qui est conformée et traitée (par exemple métallisée) de manière à réfléchir vers l'avant la lumière qui est émise par la lampe L1. Cette fonction de réflexion prédéterminée (et donc de mise en forme de la lumière) constitue au moins partiellement la première fonction photométrique du premier réflecteur R1.As illustrated on Figures 1 and 2 , the part of the main wall PP which defines the first reflector R1 comprises a central opening 01 intended to receive a transmitting part of a lamp (or bulb) L1. In this case, this main wall portion PP comprises an internal face FIP which is shaped and processed (for example metallized) so as to reflect forwards the light which is emitted by the lamp L1. This predetermined reflection function (and therefore shaping light) is at least partially the first photometric function of the first reflector R1.

La zone R2 qui est définie par la paroi principale PP constitue par exemple une partie au moins d'un second réflecteur. Comme illustré sur les figures 1 et 2, cette zone (ou second réflecteur) R2 comprend une ouverture centrale 02 destinée à recevoir une partie émettrice d'une lampe (ou ampoule) L2. Dans ce cas, la face interne FIP de la partie de paroi principale PP qui définit au moins partiellement le second réflecteur R2 est conformée et traitée (par exemple métallisée) de manière à réfléchir vers l'avant la lumière qui est émise par la lampe L2. Cette fonction de réflexion prédéterminée (et donc de mise en forme de la lumière) constitue au moins partiellement la seconde fonction photométrique du second réflecteur (ou zone) R2.The zone R2 which is defined by the main wall PP constitutes for example at least a part of a second reflector. As illustrated on Figures 1 and 2 , this zone (or second reflector) R2 comprises a central opening 02 intended to receive a transmitting part of a lamp (or bulb) L2. In this case, the inner face FIP of the main wall portion PP which at least partially defines the second reflector R2 is shaped and processed (for example metallized) so as to reflect forwards the light which is emitted by the lamp L2. . This predetermined reflection function (and therefore the shaping of the light) constitutes at least partially the second photometric function of the second reflector (or zone) R2.

On entend ici par « face interne » la face FIP de la paroi principale PP qui délimite l'intérieur de la cavité précitée. Par ailleurs, on entend ici par « face externe » la face FEP (voir figure 13) de la paroi principale PP qui délimite l'extérieur de la cavité précitée.Here, the term "internal face" the FIP face of the main wall PP which defines the interior of the aforementioned cavity. Moreover, here "external face" is understood to mean the FEP face (see figure 13 ) of the main wall PP which defines the outside of the aforementioned cavity.

Comme illustré sur la figure 2, la cavité (délimitée par la paroi principale PP) loge une plaque métallique PM dans une position qui assure une séparation des première et seconde fonctions photométriques. La solidarisation de cette plaque métallique PM à la paroi principale PP se fait par plaquage sous contrainte suivant une première direction D1 par coopération de premiers moyens de fixation MF1j de la paroi principale PP et de seconds moyens de fixation MF2j de la plaque métallique PM sur lesquels on reviendra plus loin. Cette première direction D1 est sensiblement parallèle à la direction verticale une fois le bloc optique BO installé dans un véhicule automobile.As illustrated on the figure 2 the cavity (delimited by the main wall PP) houses a metal plate PM in a position which ensures separation of the first and second photometric functions. The joining of this metal plate PM to the main wall PP is by stress plating in a first direction D1 by cooperation of the first fixing means MF1j of the main wall PP and second fixing means MF2j of the metal plate PM on which we will come back later. This first direction D1 is substantially parallel to the vertical direction once the optical block BO installed in a motor vehicle.

De préférence, la plaque métallique PM est agencée de manière à participer au moins à la première fonction photométrique. Elle peut également et éventuellement participer à la seconde fonction photométrique. A cet effet, et comme illustré non limitativement sur les figures 2 à 4, la plaque métallique PM peut par exemple être emboutie de manière à définir des gradins ou marches d'escalier présentant chacun(e) une inclinaison choisie adaptée à la fonction photométrique à assurer.Preferably, the metal plate PM is arranged to participate at least in the first photometric function. It can also and possibly participate in the second photometric function. For this purpose, and as illustrated without limitation on the Figures 2 to 4 , the metal plate PM may for example be stamped so as to define steps or stair steps each having (e) a chosen inclination adapted to the photometric function to ensure.

La plaque métallique PM comprend une partie arrière PRP, qui est placée dans le fond de la cavité (au voisinage de l'ouverture centrale O1), et une partie avant PVP, qui se trouve située juste avant la face interne du masque M (lorsqu'il est prévu) ou bien juste avant la face interne de la glace (en l'absence de masque). Il est rappelé que la glace est habituellement placée devant au moins le premier réflecteur R1 et que l'éventuel masque est intercalé entre la glace et au moins le second réflecteur R2. La glace et l'éventuel masque M sont solidarisés à la paroi principale PP.The metal plate PM comprises a rear portion PRP, which is placed in the bottom of the cavity (in the vicinity of the central opening O1), and a front portion PVP, which is located just before the inner face of the mask M (when it is planned) or just before the inner face of the ice (in the absence of a mask). It is recalled that the ice is usually placed in front of at least the first reflector R1 and that the optional mask is interposed between the ice and at least the second reflector R2. The ice and the possible mask M are secured to the main wall PP.

On considère ici que le mot « avant » qualifie une face ou une partie qui est destinée à être orientée vers l'extérieur du véhicule, tandis que le mot « arrière » qualifie une face ou une partie qui est destinée à être orientée vers l'intérieur du véhicule.It is considered here that the word "before" qualifies a face or a part which is intended to be oriented towards the outside of the vehicle, while the word "rear" qualifies a face or a part which is intended to be oriented towards the inside the vehicle.

Selon l'invention, et comme indiqué ci-avant, la paroi principale PP et la plaque métallique PM comprennent respectivement des premiers MF1j et seconds MF2j moyens de fixation qui coopèrent ensemble, en vue de les solidariser l'une à l'autre par plaquage sous contrainte, sans que la partie avant PVP de la plaque métallique PM ne soit au contact de la face interne du masque ou de la glace.According to the invention, and as indicated above, the main wall PP and the metal plate PM respectively comprise first MF1j and second MF2j fixing means which cooperate together, for the purpose of securing them to one another by plating. under stress, without the PVP front portion of the metal plate PM is in contact with the inner face of the mask or ice.

Par exemple, et comme illustré non limitativement sur les figures 3 à 7 et 9 à 12, les seconds moyens de fixation MF2j peuvent être agencés sous la forme d'au moins deux pattes élastiques embouties. L'utilisation de pattes élastiques est particulièrement avantageuse car elle permet de rattraper d'éventuels jeux induits par des variations dimensionnelles locales.For example, and as illustrated in a non-limiting manner on Figures 3 to 7 and 9 to 12 the second fixing means MF2j can be arranged in the form of at least two pressed elastic tabs. The use of elastic tabs is particularly advantageous because it makes it possible to catch any games induced by local dimensional variations.

Dans l'exemple non limitatif illustré sur les figures 3 et 4, la plaque métallique PM comprend quatre seconds moyens de fixation MF21 à MF24 (j = 1 à 4) propres à coopérer respectivement avec quatre premiers moyens de fixation MF11 à MF14 (j = 1 à 4). Mais, la plaque métallique PM pourrait comprendre deux, trois ou cinq, voire même plus de cinq seconds moyens de fixation MF2j.In the non-limiting example illustrated on the Figures 3 and 4 , the metal plate PM comprises four second attachment means MF21 to MF24 (j = 1 to 4) adapted to cooperate respectively with four first attachment means MF11 to MF14 (j = 1 to 4). But, the metal plate PM could comprise two, three or five, or even more than five second attachment means MF2j.

Dans l'exemple non limitatif illustré, les quatre seconds moyens de fixation MF2j sont respectivement définis sur le bord périphérique de la plaque métallique PM, dans quatre zones Zj différentes. Ici, les première Z1 et deuxième Z2 zones sont situées dans la partie avant PVP de la plaque métallique PM, tandis que les troisième Z3 et quatrième Z4 zones sont situées dans la partie arrière PRP de la plaque métallique PM.In the nonlimiting example illustrated, the four second fixing means MF2j are respectively defined on the peripheral edge of the metal plate PM, in four different zones Zj. Here, the first Z1 and second Z2 areas are located in the front portion PVP of the metal plate PM, while the third Z3 and fourth Z4 areas are located in the rear portion PRP of the metal plate PM.

Les orientations et formes respectives des pattes élastiques MF2j dépendent des endroits où sont définis les seconds moyens de fixation MF1j correspondants de la paroi principale PP. Par exemple, dans l'exemple non limitatif illustré, la première patte élastique MF21 (voir figures 3, 5 et 6) est repliée vers la face inférieure FI de la plaque métallique PM, qui est orientée vers le second réflecteur R2, tandis que les deuxième MF22 (voir figures 3, 4 et 7), troisième MF23 (voir figures 3, 4 et 10), et quatrième MF24 (voir figures 3, 4 et 11) pattes élastiques sont inclinées du côté de la face supérieure FS de la plaque métallique PM, qui est orientée vers le premier réflecteur R1.The respective orientations and shapes of the elastic tabs MF2j depend on the locations where the second corresponding fastening means MF1j of the main wall PP are defined. For example, in the nonlimiting example illustrated, the first elastic lug MF21 (see figures 3 , 5 and 6 ) is folded towards the lower face FI of the metal plate PM, which is oriented towards the second reflector R2, while the second MF22 (see Figures 3, 4 and 7 ), third MF23 (see Figures 3, 4 and 10 ), and fourth MF24 (see Figures 3, 4 and 11 ) elastic tabs are inclined on the side of the upper face FS of the metal plate PM, which is oriented towards the first reflector R1.

Par exemple, et comme illustré non limitativement sur les figures 3 à 7 et 9 à 12, les pattes élastiques MF2j peuvent comprendre au moins une déformation locale DL, de préférence semi-sphériques (par exemple des demies sphères), destinée à favoriser leur plaquage contre une partie des premiers moyens de fixation MF1j correspondants. Cette déformation locale DL est obtenue par emboutissage.For example, and as illustrated in a non-limiting manner on Figures 3 to 7 and 9 to 12 , the elastic tabs MF2j may comprise at least one local deformation DL, preferably semi-spherical (for example half-spheres), intended to promote their plating against a part of the corresponding first fixing means MF1j. This local deformation DL is obtained by stamping.

Dans l'exemple non limitatif illustré, les première MF21, deuxième MF22 et troisième MF23 pattes élastiques comportent chacune une déformation locale (semi-sphérique) DL de type concave ou convexe, tandis que la quatrième patte élastique MF24 comporte une première déformation locale (semi-sphérique) DL de type concave et une seconde déformation locale (semi-sphérique) DL de type convexe (pour une mise en contrainte de la plaque métallique PM suivant la première direction D1 dans deux sens opposés). Mais, le nombre de déformations locales de chaque patte élastique MF2j peut être égal à un ou deux, voire même trois. De même, d'autres formes peuvent être envisagées pour les déformations locales DL. Ainsi, elles peuvent être pyramidales (éventuellement tronquées), par exemple. On notera que les déformations locales DL peuvent éventuellement varier d'une patte élastique MF2j à une autre MF2j'.In the nonlimiting example illustrated, the first MF21, second MF22 and third MF23 elastic tabs each comprise a local deformation (semi-spherical) DL concave or convex type, while the fourth elastic tab MF24 comprises a first local deformation (semi -spherical) DL concave type and a second local deformation (semi-spherical) DL convex type (for stressing of the metal plate PM in the first direction D1 in two opposite directions). But, the number of local deformations of each elastic tab MF2j may be equal to one or two or even three. Likewise, other forms can be envisaged for local deformations DL. Thus, they can be pyramidal (possibly truncated), for example. It will be noted that the local deformations DL may possibly vary from one MF2j elastic lug to another MF2j '.

Comme indiqué ci-avant, les premiers moyens de fixation MF1j sont agencés pour coopérer respectivement avec les différents (au moins deux) seconds moyens de fixation MF2j correspondants. En présence de seconds moyens de fixation MF2j agencés sous la forme de pattes élastiques, les premiers moyens de fixation MF1j peuvent être avantageusement réalisés sous la forme de logements (ou cavités). Cela permet en effet de masquer certaines au moins des pattes élastiques MF2j, les rendant ainsi invisibles de l'extérieur du bloc optique BO.As indicated above, the first fastening means MF1j are arranged to cooperate respectively with the different (at least two) second fixing means MF2j corresponding. In the presence of second fixing means MF2j arranged in the form of elastic tabs, the first fixing means MF1j may advantageously be in the form of housings (or cavities). This makes it possible to mask at least some of the elastic tabs MF2j, thus making them invisible from outside the optical block BO.

Par exemple, l'un au moins des premiers moyens de fixation MF1j peut être agencé sous la forme d'un logement défini dans une patte de fixation PF qui est solidarisée à la paroi principale PP. C'est le cas du premier premier moyen de fixation MF11 dans l'exemple non limitatif illustré sur la figure 6. Plus précisément, dans cet exemple non limitatif la paroi principale PP comprend une première zone dans laquelle est définie une patte de fixation PF munie au niveau de son extrémité (avant) libre d'un logement MF11 définissant le premier moyen de fixation et destiné à loger la première patte élastique MF21. Le premier logement MF11 est ici ouvert sur trois côtés afin de faciliter l'introduction de la première patte élastique MF21.For example, at least one of the first fixing means MF1j can be arranged in the form of a housing defined in a fixing lug PF which is secured to the main wall PP. This is the case of the first first fastening means MF11 in the nonlimiting example illustrated in FIG. figure 6 . More specifically, in this non-limiting example the main wall PP comprises a first zone in which is defined a fixing lug PF provided at its free end (front) of a housing MF11 defining the first fixing means and intended to house the first elastic leg MF21. The first housing MF11 is here open on three sides to facilitate the introduction of the first elastic lug MF21.

Par exemple, l'un au moins des premiers moyens de fixation MF1j peut être agencé sous la forme d'un logement défini dans la paroi principale PP. C'est le cas des deuxième MF12 (voir figures 8 et 9), troisième MF13 (voir figure 10), et quatrième MF14 (voir figure 12) premiers moyens de fixation dans l'exemple non limitatif illustré.For example, at least one of the first fixing means MF1j may be arranged in the form of a housing defined in the main wall PP. This is the case of the second MF12 (see figures 8 and 9 ), third MF13 (see figure 10 ), and fourth MF14 (see figure 12 ) first fastening means in the non-limiting example illustrated.

Plus précisément, dans cet exemple non limitatif la paroi principale PP comprend :

  • une deuxième zone dans laquelle est défini un deuxième logement MF12 définissant le deuxième premier moyen de fixation et destiné à loger la deuxième patte élastique MF22 (voir figures 8 et 9),
  • une troisième zone dans laquelle est défini un troisième logement MF13 définissant le troisième premier moyen de fixation et destiné à loger la troisième patte élastique MF23 (voir figure 10),
  • une quatrième zone dans laquelle est défini un quatrième logement MF14 définissant le quatrième premier moyen de fixation et destiné à loger la quatrième patte élastique MF24 (voir figure 12).
More specifically, in this non-limiting example, the main wall PP comprises:
  • a second zone in which is defined a second housing MF12 defining the second first fixing means and intended to house the second elastic tab MF22 (see figures 8 and 9 )
  • a third zone in which is defined a third housing MF13 defining the third first fixing means and intended to house the third elastic tab MF23 (see figure 10 )
  • a fourth zone in which is defined a fourth housing MF14 defining the fourth first fixing means and intended to house the fourth elastic tab MF24 (see FIG. figure 12 ).

Le deuxième logement MF12 est ici ouvert sur un seul côté. Il comprend des première F1 et seconde F2 faces en regard l'une de l'autre. Comme illustré, la première face F1 est préférentiellement désorientée par rapport à la seconde face F2 de manière à repousser la deuxième patte élastique MF22 vers cette seconde face F2 et ainsi la plaquer contre cette dernière sensiblement suivant la première direction D1. Dans l'exemple non limitatif illustré sur les figures 8 et 9, la première face (supérieure) F1 est munie d'au moins une saillie (par exemple une contre forme) S qui est orientée vers la seconde face (inférieure) F2 et destinée à renforcer le plaquage de la deuxième patte élastique MF22 vers cette seconde face F2. En fait, c'est la déformation locale DL de la deuxième patte élastique MF22 qui est contrainte à contacter la seconde face F2. On notera que dans l'exemple illustré, la première face (supérieure) F1 est munie de deux saillies (ici des contres formes) S de manière à favoriser la qualité du plaquage de la deuxième patte élastique MF22 contre la seconde face F2 du deuxième logement MF12.The second housing MF12 is here open on one side. It includes first F1 and second F2 faces facing each other. As illustrated, the first face F1 is preferably disoriented with respect to the second face F2 so as to push the second elastic lug MF22 to this second face F2 and thus press against the latter substantially in the first direction D1. In the non-limiting example illustrated on the figures 8 and 9 , the first (upper) face F1 is provided with at least one projection (for example a counter-form) S which is oriented towards the second (lower) face F2 and intended to reinforce the plating of the second elastic tab MF22 towards this second face F2. In fact, it is the local deformation DL of the second elastic tab MF22 which is forced to contact the second face F2. Note that in the illustrated example, the first face (upper) F1 is provided with two projections (here counter shapes) S so as to promote the quality of the plating of the second elastic lug MF22 against the second face F2 of the second housing MF12.

Le troisième logement MF13 est ici ouvert sur trois côtés afin de faciliter l'introduction de la troisième patte élastique MF23. Il comprend des première F1 et seconde F2 faces en regard l'une de l'autre. Comme illustré, la première face F1 est préférentiellement désorientée par rapport à la seconde face F2 de manière à repousser la troisième patte élastique MF23 vers cette seconde face F2 et ainsi la plaquer contre cette dernière sensiblement suivant la première direction D1. Dans l'exemple non limitatif illustré sur la figure 10, la première face (supérieure) F1 est munie d'une seule saillie S qui est orientée vers la seconde face (inférieure) F2 et destinée à renforcer le plaquage de la troisième patte élastique MF23 vers cette seconde face F2. En fait, c'est la déformation locale DL de la troisième patte élastique MF23 qui est contrainte à contacter la seconde face F2. Bien entendu, la première face (supérieure) F1 de ce troisième logement MF13 pourrait être munie de deux saillies S, comme dans le cas du deuxième logement MF12.The third housing MF13 is here open on three sides to facilitate the introduction of the third elastic tab MF23. It includes first F1 and second F2 faces facing each other. As illustrated, the first face F1 is preferably disoriented with respect to the second face F2 so as to push the third elastic lug MF23 to this second face F2 and thus press against the latter substantially in the first direction D1. In the non-limiting example illustrated on the figure 10 , the first (upper) face F1 is provided with a single projection S which is oriented towards the second (lower) face F2 and intended to strengthen the plating of the third elastic tab MF23 to this second face F2. In fact, it is the local deformation DL of the third elastic tab MF23 which is forced to contact the second face F2. Of course, the first (upper) face F1 of this third housing MF13 could be provided with two projections S, as in the case of the second housing MF12.

Le quatrième logement MF14 est ici ouvert sur un seul côté. Il comprend des première F1 et seconde F2 faces en regard l'une de l'autre. Comme illustré, la première face F1 est préférentiellement désorientée par rapport à la seconde face F2 de manière à repousser la quatrième patte élastique MF24 vers cette seconde face F2 et ainsi la plaquer contre cette dernière sensiblement suivant la première direction D1. Dans l'exemple non limitatif illustré sur la figure 12, la première face (supérieure) F1 est munie d'une seule saillie S qui est orientée vers la seconde face (inférieure) F2 et destinée à renforcer le plaquage de la quatrième patte élastique MF24 vers cette seconde face F2. En fait, c'est la déformation locale DL de la quatrième patte élastique MF24 qui est contrainte à contacter la seconde face F2. Bien entendu, la première face (supérieure) F1 de ce quatrième logement MF14 pourrait être munie de deux saillies S, comme dans le cas du deuxième logement MF12.The fourth MF14 housing is here open on one side. he includes first F1 and second F2 faces facing each other. As illustrated, the first face F1 is preferably disoriented with respect to the second face F2 so as to push the fourth elastic tab MF24 to this second face F2 and thus press against the latter substantially in the first direction D1. In the non-limiting example illustrated on the figure 12 , the first (upper) face F1 is provided with a single projection S which is oriented towards the second (lower) face F2 and intended to strengthen the plating of the fourth elastic tab MF24 to this second face F2. In fact, it is the local deformation DL of the fourth elastic tab MF24 which is forced to contact the second face F2. Of course, the first (upper) face F1 of this fourth housing MF14 could be provided with two projections S, as in the case of the second housing MF12.

Grâce à la coopération des premiers MF1j et seconds MF2j moyens de fixation, la plaque métallique PM est donc solidarisée à la paroi principale PP par un plaquage sous contrainte suivant la première direction D1, sans collage, clippage ou soudage, ce qui est particulièrement avantageux.Thanks to the cooperation of the first MF1j and second MF2j fixing means, the metal plate PM is secured to the main wall PP by stress plating in the first direction D1, without gluing, clipping or welding, which is particularly advantageous.

On notera, comme illustré non limitativement sur les figures 3, 4, 13 et 14, qu'il est avantageux que la paroi principale PP comprenne au moins un logement auxiliaire LA et que la plaque métallique PM comprenne au moins une patte de positionnement MPk destinée à être logée dans un logement auxiliaire LA correspondant. Cela permet en effet de pré-positionner (ou caler) la plaque métallique PM par rapport à la paroi principale PP suivant deux directions sensiblement perpendiculaires, avant de faire coopérer ensemble les premiers MF1j et seconds MF2j moyens de fixation.It will be noted, as illustrated without limitation on the Figures 3, 4 , 13 and 14 , that it is advantageous that the main wall PP comprises at least one auxiliary housing LA and the metal plate PM comprises at least one positioning tab MPk intended to be housed in a corresponding auxiliary housing LA. This makes it possible to pre-position (or wedge) the metal plate PM relative to the main wall PP in two substantially perpendicular directions, before cooperating together the first MF1j and second MF2j fixing means.

Dans l'exemple non limitatif illustré sur les figures 3, 4, 13 et 14, la plaque métallique PM comprend deux pattes de positionnement MP1 et MP2 (k = 1 ou 2) définies dans la partie arrière PRP de la plaque métallique PM et propres à être logées dans deux logements auxiliaires LA correspondants définis dans la partie arrière de la paroi principale PP au voisinage de l'ouverture de lampe 01. Par ailleurs, dans l'exemple non limitatif illustré sur la figure 14, les logements auxiliaires LA sont des ouvertures traversantes. Mais, cela n'est pas obligatoire.In the non-limiting example illustrated on the Figures 3, 4 , 13 and 14 , the metal plate PM comprises two positioning tabs MP1 and MP2 (k = 1 or 2) defined in the rear portion PRP of the metal plate PM and adapted to be housed in two corresponding auxiliary housings LA defined in the rear part of the wall main PP in the vicinity of the lamp aperture 01. Moreover, in the non-limiting example illustrated on the figure 14 , auxiliary housing LA are through openings. But, this is not mandatory.

L'invention offre plusieurs avantages, parmi lesquels :

  • elle évite tout contact entre la plaque métallique et la glace et/ou le masque, si bien que la plaque métallique n'induit plus de bruit en présence de vibrations et/ou chocs,
  • la plaque métallique n'induit plus de contrainte sur la glace et/ou le masque du fait qu'elle n'est plus solidarisée à celle(s)-ci,
  • il n'y a plus de défauts d'injection (ou retassures) apparent(e)s du fait que la plaque métallique est réalisée en métal (par emboutissage) et non par moulage/démoulage,
  • la plaque métallique peut être conformée (emboutie) de manière à participer à au moins une fonction photométrique, du fait qu'elle est réalisée en métal (par emboutissage) et non par moulage/démoulage,
  • la plaque métallique étant visible de l'extérieur de son bloc optique, elle peut participer au style de ce dernier.
The invention offers several advantages, among which:
  • it avoids any contact between the metal plate and the ice and / or the mask, so that the metal plate no longer induces noise in the presence of vibrations and / or shocks,
  • the metal plate no longer induces stress on the ice and / or the mask because it is no longer secured to that (s),
  • there are no more injection defects (or sinkholes) apparent (e) s because the metal plate is made of metal (by stamping) and not by molding / demolding,
  • the metal plate can be shaped (embossed) so as to participate in at least one photometric function, because it is made of metal (by stamping) and not by molding / demolding,
  • the metal plate being visible from the outside of its optical block, it can participate in the style of the latter.

L'invention ne se limite pas aux modes de réalisation de bloc optique et de plaque métallique décrits ci-avant, seulement à titre d'exemple, mais elle englobe toutes les variantes que pourra envisager l'homme de l'art dans le cadre des revendications ci-après.The invention is not limited to the embodiments of optical block and metal plate described above, only by way of example, but encompasses all the variants that may be considered by those skilled in the art in the context of claims below.

Claims (13)

  1. A motor vehicle lighting unit (BO) comprising at least one main wall (PP) defining a cavity subdivided into a part of a first reflector (R1), intended at least partially to perform a first photometric function, and at least a part of a zone (R2), situated beside said part of the first reflector (R1) and intended at least partially to perform a second photometric function, said main wall (PP) being equipped with first fixing means (MF1j), characterised in that it comprises a metal panel (PM) including a rear part (PRP) which is positioned in the bottom of the cavity and a front part (PVP), said metal panel being equipped with second elastic-type fixing means (MF2j) cooperating with said first fixing means (MF1j) in order to secure the metal panel (PM) to the main wall (PP) by pressing it firmly against the latter under stress in a first direction and in a position that ensures separation between said first and second photometric function, the panel being visible from the outside of the lighting unit.
  2. A lighting unit according to claim 1, characterised in that said second fixing means (MF2j) are arranged in the shape of at least two pressed elastic lugs.
  3. A lighting unit according to claim 2, characterised in that said elastic lugs comprise at least one local deformation (DL).
  4. A lighting unit according to claim 3, characterised in that said local deformation (DL) is semi-spherical.
  5. A lighting unit according to one of claims 3 and 4, characterised in that at least one of said elastic lugs comprises a first local deformation (DL), concave in shape, and a second local deformation (DL), convex in shape.
  6. A lighting unit according to one of claims 1 to 5, characterised in that at least one of said first fixing means (MF1j) is arranged in the shape of a housing designed to receive and cooperate with a second fixing means (MF2j).
  7. A lighting unit according to claim 6, characterised in that said housing (MF1j) is defined in a fixing lug (PF) connected to said main wall (PP).
  8. A lighting unit according to claim 6, characterised in that said housing (MF1j) is defined in said main wall (PP).
  9. A lighting unit according to claim 8, characterised in that said housing (MF1j) comprises first (F1) and second (F2) surfaces opposite each other, said first surface (F1) being equipped with at least one protrusion (S) directed towards said second surface (F2) and intended to press one of said second fixing means (MF2j) firmly against said second surface (F2).
  10. A lighting unit according to one of claims 1 to 9, characterised in that said metal panel (PM) comprises four second fixing means (MF2j), designed to cooperate with four first fixing means (MF1j).
  11. A lighting unit according to one of claims 1 to 10, characterised in that said main wall (PP) comprises at least one auxiliary housing (LA), and in that said metal panel (PM) comprises at least one positioning lug (MPk) designed to be housed in said corresponding auxiliary housing (LA) so as to pre-position said metal panel (PM) in relation to said main wall (PP) in two substantially perpendicular directions, before all of said first (MF1j) and second (MF2j) fixing means cooperate with each other.
  12. A lighting unit according to claim 11, characterised in that said metal panel (PM) comprises two positioning lugs (MPk) designed to be housed in two corresponding auxiliary housings (LA) of said main wall (PP).
  13. A lighting unit according to one of claims 1 to 12, characterised in that said metal panel (PM) is arranged so as to take part in at least said first photometric function.
EP09806095.7A 2009-01-16 2009-12-21 Motor vehicle lighting unit with functional dividing panel secured to its main wall by being pressed firmly against it under elastic stress. Not-in-force EP2379941B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0950271A FR2941283B1 (en) 2009-01-16 2009-01-16 MOTOR VEHICLE OPTICAL BLOCK WITH FUNCTIONAL SEPARATION PLATE SOLIDARIZED TO ITS MAIN WALL BY ELASTICALLY PRESSURIZED PLATING
PCT/FR2009/052652 WO2010081956A1 (en) 2009-01-16 2009-12-21 Motor vehicle lighting unit with functional dividing panel secured to its main wall by being pressed firmly against it under elastic stress.

Publications (2)

Publication Number Publication Date
EP2379941A1 EP2379941A1 (en) 2011-10-26
EP2379941B1 true EP2379941B1 (en) 2015-02-11

Family

ID=40524759

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09806095.7A Not-in-force EP2379941B1 (en) 2009-01-16 2009-12-21 Motor vehicle lighting unit with functional dividing panel secured to its main wall by being pressed firmly against it under elastic stress.

Country Status (6)

Country Link
EP (1) EP2379941B1 (en)
CN (1) CN102356272B (en)
BR (1) BRPI0919990A2 (en)
ES (1) ES2531636T3 (en)
FR (1) FR2941283B1 (en)
WO (1) WO2010081956A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024084139A1 (en) * 2022-10-19 2024-04-25 Stellantis Auto Sas Optical unit for vehicle equipped with a heat radiator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3018750B1 (en) * 2014-03-24 2016-04-01 Peugeot Citroen Automobiles Sa PROJECTOR OR FIRE BOX OF A MOTOR VEHICLE OBTAINED BY MOLDING
ES2815627T3 (en) * 2016-10-24 2021-03-30 Simon Lighting S A Luminaire and cover for luminaire

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
DE3532205C1 (en) * 1985-09-10 1987-02-26 Hella Kg Hueck & Co Vehicle lamp with several filament lamps connected via cables with a multiple plug connection
JP3810927B2 (en) * 1998-09-16 2006-08-16 株式会社小糸製作所 Vehicle lighting
DE20209730U1 (en) * 2002-06-22 2002-08-29 Automotive Lighting Reutlingen GmbH, 72762 Reutlingen headlights
US6733164B1 (en) * 2002-10-22 2004-05-11 Valeo Sylvania Llc Lamp apparatus, lamp and optical lens assembly and lamp housing assembly
JP4062509B2 (en) * 2002-11-12 2008-03-19 本田技研工業株式会社 Vehicle headlamp device
FR2904095B1 (en) * 2006-07-24 2010-08-20 Peugeot Citroen Automobiles Sa MULTIFUNCTIONAL LIGHTING AND / OR SIGNALING DEVICE WITH THERMAL PROTECTION FOR VEHICLE.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024084139A1 (en) * 2022-10-19 2024-04-25 Stellantis Auto Sas Optical unit for vehicle equipped with a heat radiator
FR3141232A1 (en) * 2022-10-19 2024-04-26 Psa Automobiles Sa Optical unit, for vehicle, equipped with a thermal radiator

Also Published As

Publication number Publication date
WO2010081956A1 (en) 2010-07-22
ES2531636T3 (en) 2015-03-18
CN102356272B (en) 2014-05-14
EP2379941A1 (en) 2011-10-26
FR2941283B1 (en) 2011-04-08
BRPI0919990A2 (en) 2018-05-22
CN102356272A (en) 2012-02-15
FR2941283A1 (en) 2010-07-23

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