EP2598795A1 - Device for attaching a first element onto a second element by means of the engagement between lock lugs and attachment lugs - Google Patents

Device for attaching a first element onto a second element by means of the engagement between lock lugs and attachment lugs

Info

Publication number
EP2598795A1
EP2598795A1 EP11743849.9A EP11743849A EP2598795A1 EP 2598795 A1 EP2598795 A1 EP 2598795A1 EP 11743849 A EP11743849 A EP 11743849A EP 2598795 A1 EP2598795 A1 EP 2598795A1
Authority
EP
European Patent Office
Prior art keywords
lug
secured
immobilization
housing
central opening
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.)
Withdrawn
Application number
EP11743849.9A
Other languages
German (de)
French (fr)
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP2598795A1 publication Critical patent/EP2598795A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/06—Releasable fastening devices with snap-action
    • F16B21/07—Releasable fastening devices with snap-action in which the socket has a resilient part
    • F16B21/073—Releasable fastening devices with snap-action in which the socket has a resilient part the socket having a resilient part on its inside
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/06—Releasable fastening devices with snap-action
    • F16B21/07—Releasable fastening devices with snap-action in which the socket has a resilient part
    • F16B21/071—Releasable fastening devices with snap-action in which the socket has a resilient part the socket being integrally formed with a component to be fasted, e.g. a sheet, plate or strip
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
    • F16B5/0607—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other
    • F16B5/0621—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship
    • F16B5/0664—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship at least one of the sheets or plates having integrally formed or integrally connected snap-in-features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/50—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
    • F21S41/55—Attachment thereof

Definitions

  • the invention relates to fastening devices which are intended to allow the attachment of a first element to a second element.
  • a first element such as for example and not limited to a vehicle optical block reflector (possibly of automotive type), on a second element, such as for example and not limited to a block housing.
  • optical They are usually based on clipping or screwing or the cooperation of forms. In certain situations, these devices do not provide complete satisfaction, for example because of the difficulty of producing the clipping means or means involved in screwing and / or the determination of the respective positions of the aforementioned means, or vibrations and noise they induce, or because of the cost of screwing operations, or because they do not allow a sufficiently precise positioning of the first element relative to the second element, which prevents the first element of ensure optimal function (eg photometric).
  • the first element is an optical block reflector
  • the second and third elements are respectively an optical block box and an optical block mask.
  • this integration can be very complicated, if not impossible.
  • the heat which is accumulated by the reflector, when its light source operates can partially diffuse towards the mask, by thermal conduction in the mass, which can damage it.
  • the invention therefore aims to remedy at least one of the aforementioned drawbacks.
  • a device intended to allow the fixing of a first element on a second element, and comprising:
  • first and second immobilization tabs secured to the second element in different locations and in first and second planes having different orientations, and each having a central opening
  • first and second fastening lugs secured to the first element in different locations and in first and second different directions, and each comprising a central part adapted to be housed and immobilized by clipping in the central opening of the first or second second immobilization lug, and an end portion extending the central portion at an angle selected to rest on the second element to wedge the first element in a direction substantially perpendicular to the corresponding central opening.
  • the fixing device according to the invention may comprise other features that can be taken separately or in combination, and in particular:
  • a third immobilization lug secured to the second element in another location and in a plane (preferably) substantially parallel to the second plane, and having a central opening
  • a third fastening lug secured to the first element in another location and following (preferably) the second direction, and comprising a central part adapted to be housed and immobilized by clipping in the central opening of the third leg; immobilization, and an end portion extending the central portion at an angle selected to rest on the second member to wedge the first member in a direction substantially perpendicular to the corresponding central opening;
  • the end portions of the second and third fixing lugs may be secured at selected angles which are adapted to allow the wedging of said first element in the same direction but in opposite directions; the end portion of the second fastening lug and / or the end portion of the third fastening lug are / are adapted to allow locking by elastic deformation;
  • Each central opening may comprise a flared portion of prolonged introduction by a rounded portion of immobilization.
  • each central portion of a bracket may have a front face of rounded shape and intended to be housed and immobilized in the rounded portion of the corresponding central opening;
  • each rounded portion may be semi circular.
  • each front face may have a semi-cylindrical shape
  • each immobilizing tab may comprise two slightly flexible, substantially identical sub-parts, positioned symmetrically with respect to a median plane, and together defining a flared portion and a rounded portion;
  • the first and second planes may be substantially orthogonal to each other.
  • the first and second directions are substantially orthogonal to each other;
  • the angle chosen can be between about 92 ° and about 150 °;
  • auxiliary lug secured to the first element, and a housing defined in the second element and intended to accommodate a portion of the auxiliary lug to prevent rotation of the first element relative to the second element.
  • the invention also proposes a first element comprising each fixing lug and the optional auxiliary lug of a fixing device of the type shown above.
  • the invention also proposes a second element comprising each immobilizing lug and the possible housing of a fixing device of the type of that presented above.
  • the invention also proposes a vehicle optical unit comprising first and second elements of the types of those presented above.
  • FIG. 1 schematically illustrates, in a front-side perspective view, a part of an optical block housing according to the invention assembled with a reflector and a mask,
  • FIG. 2 schematically illustrates, in a perspective view on the front side, the casing of FIG. 1 equipped with a part of a fixing device according to the invention and before coupling to a reflector,
  • FIG. 3 schematically illustrates, in a perspective view, an exemplary embodiment of an immobilization lug of a fixing device according to the invention, secured to the casing of FIG. 2,
  • FIG. 4 schematically illustrates, in a rear perspective view, the reflector of FIG. 1 equipped with another part of a fixing device according to the invention and before coupling to the housing of FIG. 2,
  • FIG. 5 schematically illustrates, in a perspective view, an exemplary embodiment of a fastening tab of a fastening device according to the invention, secured to the reflector of FIG. 4;
  • FIG. 6 schematically illustrates, in a perspective view, the coupling between the first fixing lug and the first immobilizing lug of the fixing device illustrated in FIGS. 2 and 4;
  • FIG. 7 schematically illustrates, in a perspective view, the coupling between the second fixing lug and the second immobilizing lug of the fixing device illustrated in FIGS. 2 and 4;
  • FIG. 8 schematically illustrates, in a sectional view, the coupling between the third fixing lug and the third immobilizing lug of the fixing device illustrated in FIGS. 2 and 4, and
  • FIG. 9 schematically illustrates, in a front perspective view, the coupling between an auxiliary lug and a housing of the fastener shown in Figures 2 and 4.
  • the attached drawings may not only serve to complete the invention, but also contribute to its definition, if any.
  • the invention aims to provide a device (D) for allowing the attachment of a first element (R) on a second element (BT).
  • the first element (R) is a reflector of an optical block (BO) and the second element (BT) is a case of this same optical block. (BO).
  • the invention is not limited to these types of first and second elements. It concerns indeed any type of first element to be fixed on a second element of any type.
  • the optical block (BO) generally comprises in addition at least one ice solidarized at the front part of its housing (BT), as well as possibly a mask (M) interposed between its reflector (R) and its mask (M ).
  • the optical block (BO) is a signal rear lamp to be installed at the rear of a vehicle, possibly automotive type. But, the invention is not limited to this type of application. It also relates to certain optical blocks, such as headlights (or headlights), intended to be installed at the front of a vehicle, possibly of the automotive type.
  • the reflector (R) is intended to reflect light which is emitted by a light source dedicated to the so-called DRL function (for "Daytime running Light” or Lamp) "- illuminated warning light automatically when the vehicle starts to move forward).
  • DRL function for "Daytime running Light” or Lamp
  • FIG. 1 diagrammatically illustrates a part of an example of a multifunction optical unit BO comprising in particular a first element R, which here constitutes a molded reflector, a second element BT, which here constitutes a molded case and to which the reflector R, and a third element M, which here constitutes a molded mask secured to the LV housing and / or the reflector R and which is interposed between the reflector R and an ice of the optical block BO (not shown).
  • a first element R which here constitutes a molded reflector
  • BT which here constitutes a molded case and to which the reflector R
  • a third element M which here constitutes a molded mask secured to the LV housing and / or the reflector R and which is interposed between the reflector R and an ice of the optical block BO (not shown).
  • the reflector (or first element) R defines a cavity which is open in its front part (facing outwards) and which comprises at least one opening OV (see Figure 1) for the passage of at least a portion of a light source, such as a bulb or a lamp or a light-emitting diode, and / or to allow the electrical wiring of such a source from light.
  • a light source such as a bulb or a lamp or a light-emitting diode
  • housing BT may possibly be secured to a plurality of first elements R of similar or different shapes.
  • a fixing device D according to the invention. As illustrated in Figures 2 to 9 (and more particularly in Figures 2 and 4), such a device (fixing) D comprises first and second parts.
  • the first part comprises at least first PF1 and second PF2 fixing lugs which are secured to the first element R (here the reflector).
  • the second part comprises at least first PU and second PI2 immobilization tabs which are secured to the second element BT (here the housing).
  • first PU and second PI2 immobilization tabs are secured to the LV housing in different locations and in first and second planes that have different orientations.
  • the first plane is substantially defined by the X and Z directions
  • the second plane is substantially defined by the X and Y directions. Therefore, the first and second planes are substantially orthogonal to each other. But, this is not an obligation. They can indeed have a disorientation greater than or less than 90 ° (since it is different from 0 ° or 180 °).
  • the places of attachment of the first PUs and second PI2 immobilization tabs preferably differ not only in the first direction Y, but also in the second direction Z and in the third direction X.
  • the first PF1 and second PF2 fixing lugs are secured to the reflector R in different locations and in first and second different directions.
  • the first direction is substantially defined by the direction Y, while the second direction is substantially defined by the direction Z. Therefore, the first and second directions are substantially orthogonal to each other. But, this is not an obligation. They can indeed have a disorientation greater than or less than 90 ° (since it is different from 0 ° or 180 °).
  • the points of attachment of the first PF1 and second PF2 fixing tabs preferably differ not only in the first direction Y, but also in the second direction Z and in the third direction X.
  • the device D comprises a third immobilization lug PI3 intended to cooperate with a third bracket PF3.
  • This embodiment is intended to improve the positioning accuracy of the reflector R with respect to the LV housing.
  • the device D could include only the first PU and second PI2 immobilization tabs and the first PF1 and second PF2 brackets (although this is not optimal in terms of quality of fixation and positioning accuracy of the reflector R).
  • the third immobilization leg PI3 is secured to the LV housing in a third place, different from those where the first PU and second PI2 locking tabs are secured (preferably in X, Y and Z), and in a plane which is (preferably) substantially parallel to the second plane (XY).
  • the third immobilization leg PI3 also has a central opening OC.
  • the third fixing lug PF3 is secured to the reflector R in a third location, different from those where the first PF1 and second PF2 fastening lugs (preferably X, Y and Z) and the (preferably) second one are secured. direction Z. Furthermore, the third fixing lug PF3 also comprises a central part PC which is adapted to be housed and immobilized by clipping in the central opening OC of the third immobilization lug PI3, and which has a first end secured to to the housing BT and a second end extended by an associated end portion PT at an angle which is selected to allow the support of this end portion PT on the housing BT to wedge the reflector R in a direction which is substantially perpendicular to the corresponding central opening OC.
  • a central part PC which is adapted to be housed and immobilized by clipping in the central opening OC of the third immobilization lug PI3, and which has a first end secured to to the housing BT and a second end extended by an associated end portion PT at
  • the setting direction of the reflector R, offered by the end portion PT of the third fixing lug PF3, is substantially the second direction Z. But, this is not obligatory. This timing direction could be different from that offered by the end portion PT of the second bracket PF2I.
  • each selected angle of a PFi bracket is between about 92 ° and about 150 °. It depends in fact on the environment of the Pli immobilization tab with which the PFi fixing lug must be considered.
  • the end portion PT of the first fixing lug PF1 may bear on an abutment zone ZB of the housing BT, which is situated in the vicinity of the place where is secured the first immobilization leg PU.
  • the end portion PT of the second fixing lug PF2 can rest on a transverse rib N of the LV housing, which is located under the second immobilization leg PI2.
  • the end portion PT of the third fixing lug PF3 can bear on a peripheral rim RP of the housing BT, which is situated above the third immobilization lug PI3. It is important to note that in FIGS. 6 to 8, the end portions PT of the fixing brackets PFi are not yet resting on the housing BT. This results from the fact that these figures materialize intermediate phases during the coupling operations of the reflector R to the LV housing.
  • the end portions PT of the second PF2 and third PF3 mounting tabs are adapted to allow a setting of the reflector R by elastic deformation. But, this is not mandatory. Indeed, the wedging could be by friction or local anchoring (possibly by clipping), for example.
  • the cooperation of the first fixing lug PF1 with the first immobilization lug PU provides a setting of the reflector R substantially along the first Y and third X directions
  • the cooperation of the second fixing lug PF2 with the second immobilization leg PI2 provides a setting of the reflector R substantially along the second Z and third X directions (with a constraint from top to bottom)
  • the cooperation of the third leg Fixing PF3 with the third immobilization leg PI3 provides a setting of the reflector R substantially along the second Z and third X directions (with a constraint from bottom to top).
  • Such multi-setting ensures a very precise positioning of the reflector R relative to the LV housing, which allows it to optimally ensure the photometric function for which it was designed.
  • the three immobilization lugs Pli are substantially identical. But, this is not mandatory. They could indeed have slightly different shapes.
  • each central opening OC of a fixing lug PFi can comprise, as illustrated without limitation in FIG. 3, a flared part PE intended to facilitate the introduction of the central part PC corresponding and prolonged by a rounded part PA intended to immobilize closely (although reversibly) the corresponding central PC part.
  • each central portion PC of the fixing lug PFi may advantageously have at least one front face whose shape is rounded so that it can be housed and immobilized optimally in the rounded part.
  • PA of the corresponding central opening OC is meant by front face the face which is introduced first in the flared portion PE, then in the rounded portion PA.
  • each rounded portion PA of a central portion PC may be semi circular, and each front face may have a shape at least semi circular cylindrical.
  • each immobilization tab P1 may advantageously comprise two subparts SP1 and SP2 which are slightly flexible, (preferably) substantially identical, (preferably) symmetrically positioned. relative to a median plane, and jointly defining a flared portion PE and a rounded portion PA.
  • this decomposition into two subparts SP1 and SP2 provides flexibility that makes it possible to momentarily increase the width of the inlet of a rounded portion PA when a PFi fastening lug is introduced into the central opening OC of the corresponding immobilization leg Pli.
  • the Pli immobilization lugs can be envisaged, provided they provide a clipping effect.
  • the device D may optionally comprise an auxiliary lug PX secured to the reflector R, and a housing LO defined in the housing BT and intended to house a portion of the auxiliary lug PX.
  • This option is intended to prevent rotation of the reflector R occurs relative to the LV housing, especially during the coupling operations.
  • the housing LO is defined in an upper part of the housing BT, on the peripheral rim RB, and thus the auxiliary lug PX is defined on an upper part of the reflector R, at a level along the second direction Z which is close to that where is implanted the third bracket PF3.
  • the coupling operations may proceed as indicated below.
  • the auxiliary tab PX is housed in the housing LO of the housing BT, then the first fixing lug PF1 is clipped into the central opening OC of the first immobilization lug PU, and then the second PF2 (or third PF3 is clipped. ) fixing lug in the central opening OC of the second PI2 (or third PI3) immobilizing lug, then clipping the third PF3 (or second PF2) bracket in the central opening OC of the third PI3 (or second PI2) immobilization leg.
  • the fixing brackets PFi and the immobilization tabs Pli may form an integral part respectively of the reflector R and the housing BT.
  • This solution is particularly advantageous when the reflector R and the LV housing are made by molding, for example in a plastic or synthetic material (such as polycarbonate (or PC) or polybutylene or thermoset therephthalate (or PBT), for example) .
  • a plastic or synthetic material such as polycarbonate (or PC) or polybutylene or thermoset therephthalate (or PBT), for example
  • the fixing lugs PFi and / or the immobilization lugs P11 are attached respectively to the reflector R and / or the housing BT, for example by screwing or gluing or welding.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Clamps And Clips (AREA)

Abstract

The invention relates to a device (D) for attaching a first element (R) onto second element (BT). Said device (D) includes: i) at least first and second (PI2) lock lugs rigidly connected to the second element (BT) in different locations and in first and second planes having different orientations, and each comprising a central opening (OC); and ii) at least first and second (PF2) attachment lugs rigidly connected to the first element (R) in different locations and in first and second directions that are different from one another, and each comprising a central portion (PC) suitable for being housed and immobilized by clipping into the central opening (OC) of the first or second (PF2) lock lugs, and an end portion (PT) extending the central part (PC) along a selected angle so as to bear against the second element (BT) in order to brace the first element (R) in a direction substantially perpendicular to the corresponding central opening (OC).

Description

DISPOSITIF DE FIXATION D'UN PREMIER ÉLÉMENT SUR UN SECOND ÉLÉMENT, PAR COOPÉRATION ENTRE DES PATTES D'IMMOBILISATION ET DES PATTES DE FIXATION  DEVICE FOR FASTENING A FIRST ELEMENT TO A SECOND ELEMENT BY COOPERATING BETWEEN FIXING LEGS AND FIXING LEGS
L'invention concerne les dispositifs de fixation qui sont destinés à permettre la fixation d'un premier élément sur un second élément. The invention relates to fastening devices which are intended to allow the attachment of a first element to a second element.
De nombreux dispositifs de fixation ont déjà été proposés pour fixer un premier élément, comme par exemple et non limitativement un réflecteur de bloc optique de véhicule (éventuellement de type automobile), sur un second élément, comme par exemple et non limitativement un boîtier de bloc optique. Ils sont généralement basés sur le clippage ou le vissage ou encore la coopération de formes. Dans certaines situations, ces dispositifs n'apportent pas une entière satisfaction, par exemple du fait de la difficulté que représente la réalisation des moyens de clippage ou des moyens participant au vissage et/ou la détermination des positions respectives des moyens précités, ou des vibrations et bruits parasites qu'ils induisent, ou bien en raison du coût des opérations de vissage, ou encore du fait qu'ils n'autorisent pas un positionnement suffisamment précis du premier élément par rapport au second élément, ce qui empêche le premier élément d'assurer de façon optimale sa fonction (par exemple photométrique).  Many fastening devices have already been proposed for fixing a first element, such as for example and not limited to a vehicle optical block reflector (possibly of automotive type), on a second element, such as for example and not limited to a block housing. optical. They are usually based on clipping or screwing or the cooperation of forms. In certain situations, these devices do not provide complete satisfaction, for example because of the difficulty of producing the clipping means or means involved in screwing and / or the determination of the respective positions of the aforementioned means, or vibrations and noise they induce, or because of the cost of screwing operations, or because they do not allow a sufficiently precise positioning of the first element relative to the second element, which prevents the first element of ensure optimal function (eg photometric).
Afin d'éviter certains au moins des problèmes précités, on peut, dans certains cas, intégrer directement le premier élément dans un troisième élément, puis solidariser ce dernier au second élément. C'est notamment le cas lorsque le premier élément est un réflecteur de bloc optique, et que les second et troisième éléments sont respectivement un boîtier de bloc optique et un masque de bloc optique. Hélas, cette intégration peut s'avérer très compliquée, voire impossible. Ainsi, dans le dernier exemple la chaleur qui est accumulée par le réflecteur, lorsque sa source de lumière fonctionne, peut partiellement diffuser vers le masque, par conduction thermique dans la masse, ce qui peut l'endommager.  In order to avoid at least some of the aforementioned problems, it is possible, in some cases, to directly integrate the first element into a third element and then to connect the latter to the second element. This is particularly the case when the first element is an optical block reflector, and the second and third elements are respectively an optical block box and an optical block mask. Alas, this integration can be very complicated, if not impossible. Thus, in the last example, the heat which is accumulated by the reflector, when its light source operates, can partially diffuse towards the mask, by thermal conduction in the mass, which can damage it.
L'invention a donc pour but de remédier à l'un au moins des inconvénients précités. The invention therefore aims to remedy at least one of the aforementioned drawbacks.
Elle propose à cet effet un dispositif, destiné à permettre la fixation d'un premier élément sur un second élément, et comprenant:  It proposes for this purpose a device, intended to allow the fixing of a first element on a second element, and comprising:
- au moins des première et deuxième pattes d'immobilisation, solidarisées au second élément dans des endroits différents et dans des premier et second plans présentant des orientations différentes, et comportant chacune une ouverture centrale, et  at least first and second immobilization tabs, secured to the second element in different locations and in first and second planes having different orientations, and each having a central opening, and
- au moins des première et deuxième pattes de fixation solidarisées au premier élément dans des endroits différents et suivant des première et seconde directions différentes, et comprenant chacune une partie centrale propre à être logée et immobilisée par clippage dans l'ouverture centrale de la première ou deuxième patte d'immobilisation, et une partie terminale prolongeant la partie centrale selon un angle choisi de manière à s'appuyer sur le second élément pour caler le premier élément suivant une direction sensiblement perpendiculaire à l'ouverture centrale correspondante.  at least first and second fastening lugs secured to the first element in different locations and in first and second different directions, and each comprising a central part adapted to be housed and immobilized by clipping in the central opening of the first or second second immobilization lug, and an end portion extending the central portion at an angle selected to rest on the second element to wedge the first element in a direction substantially perpendicular to the corresponding central opening.
Le dispositif de fixation selon l'invention peut comporter d'autres caractéristiques qui peuvent être prises séparément ou en combinaison, et notamment :  The fixing device according to the invention may comprise other features that can be taken separately or in combination, and in particular:
- il peut comprendre, d'une part, une troisième patte d'immobilisation, solidarisée au second élément dans un autre endroit et dans un plan (de préférence) sensiblement parallèle au second plan, et comportant une ouverture centrale, et, d'autre part, une troisième patte de fixation, solidarisée au premier élément dans un autre endroit et suivant (de préférence) la seconde direction, et comprenant une partie centrale propre à être logée et immobilisée par clippage dans l'ouverture centrale de la troisième patte d'immobilisation, et une partie terminale prolongeant la partie centrale selon un angle choisi de manière à s'appuyer sur le second élément pour caler le premier élément suivant une direction sensiblement perpendiculaire à l'ouverture centrale correspondante;  it may comprise, on the one hand, a third immobilization lug, secured to the second element in another location and in a plane (preferably) substantially parallel to the second plane, and having a central opening, and, on the other hand, on the one hand, a third fastening lug, secured to the first element in another location and following (preferably) the second direction, and comprising a central part adapted to be housed and immobilized by clipping in the central opening of the third leg; immobilization, and an end portion extending the central portion at an angle selected to rest on the second member to wedge the first member in a direction substantially perpendicular to the corresponding central opening;
les parties terminales des deuxième et troisième pattes de fixation peuvent être solidarisées selon des angles choisis qui sont propres à permettre le calage dudit premier élément suivant une même direction mais selon des sens opposés; - la partie terminale de la deuxième patte de fixation et/ou la partie terminale de la troisième patte de fixation sont/est propre(s) à permettre un calage par déformation élastique; the end portions of the second and third fixing lugs may be secured at selected angles which are adapted to allow the wedging of said first element in the same direction but in opposite directions; the end portion of the second fastening lug and / or the end portion of the third fastening lug are / are adapted to allow locking by elastic deformation;
- chaque ouverture centrale peut comprendre une partie évasée d'introduction prolongée par une partie arrondie d'immobilisation. Dans ce cas, chaque partie centrale d'une patte de fixation peut présenter une face avant de forme arrondie et destinée à être logée et immobilisée dans la partie arrondie de l'ouverture centrale correspondante;  - Each central opening may comprise a flared portion of prolonged introduction by a rounded portion of immobilization. In this case, each central portion of a bracket may have a front face of rounded shape and intended to be housed and immobilized in the rounded portion of the corresponding central opening;
chaque partie arrondie peut être semi circulaire. Dans ce cas, chaque face avant peut présenter une forme semi cylindrique;  each rounded portion may be semi circular. In this case, each front face may have a semi-cylindrical shape;
chaque patte d'immobilisation peut comprendre deux sous-parties légèrement flexibles, sensiblement identiques, positionnées de façon symétrique par rapport à un plan médian, et définissant conjointement une partie évasée et une partie arrondie;  each immobilizing tab may comprise two slightly flexible, substantially identical sub-parts, positioned symmetrically with respect to a median plane, and together defining a flared portion and a rounded portion;
- les premier et second plans peuvent être sensiblement orthogonaux entre eux. Dans ce cas, les première et seconde directions sont sensiblement orthogonales entre elles;  the first and second planes may be substantially orthogonal to each other. In this case, the first and second directions are substantially orthogonal to each other;
- l'angle choisi peut être compris entre environ 92 ° et environ 150 °;  the angle chosen can be between about 92 ° and about 150 °;
- il peut comprendre une patte auxiliaire solidarisée au premier élément, et un logement défini dans le second élément et destiné à loger une partie de la patte auxiliaire afin d'empêcher une rotation du premier élément par rapport au second élément.  it may comprise an auxiliary lug secured to the first element, and a housing defined in the second element and intended to accommodate a portion of the auxiliary lug to prevent rotation of the first element relative to the second element.
L'invention propose également un premier élément comprenant chaque patte de fixation et l'éventuelle patte auxiliaire d'un dispositif de fixation du type de celui présenté ci-avant.  The invention also proposes a first element comprising each fixing lug and the optional auxiliary lug of a fixing device of the type shown above.
L'invention propose également un second élément comprenant chaque patte d'immobilisation et l'éventuel logement d'un dispositif de fixation du type de celui présenté ci-avant.  The invention also proposes a second element comprising each immobilizing lug and the possible housing of a fixing device of the type of that presented above.
L'invention propose également un bloc optique de véhicule comprenant des premier et second éléments des types de ceux présentés ci- avant.  The invention also proposes a vehicle optical unit comprising first and second elements of the types of those presented above.
D'autres caractéristiques et avantages de l'invention apparaîtront à l'examen de la description détaillée ci-après, et des dessins annexés (obtenus en CAO/DAO (d'où certaines discontinuités apparentes de traits)), sur lesquels : Other features and advantages of the invention will appear in the examination of the detailed description below, and the attached drawings (obtained in CAD / DAO (hence certain apparent discontinuities of lines)), in which:
- la figure 1 illustre schématiquement, dans une vue en perspective côté avant, une partie d'un boîtier de bloc optique selon l'invention assemblée à un réflecteur et un masque,  FIG. 1 schematically illustrates, in a front-side perspective view, a part of an optical block housing according to the invention assembled with a reflector and a mask,
- la figure 2 illustre schématiquement, dans une vue en perspective côté avant, le boîtier de la figure 1 équipé d'une partie d'un dispositif de fixation selon l'invention et avant couplage à un réflecteur,  FIG. 2 schematically illustrates, in a perspective view on the front side, the casing of FIG. 1 equipped with a part of a fixing device according to the invention and before coupling to a reflector,
- la figure 3 illustre schématiquement, dans une vue en perspective, un exemple de réalisation de patte d'immobilisation d'un dispositif de fixation selon l'invention, solidarisée au boîtier de la figure 2,  FIG. 3 schematically illustrates, in a perspective view, an exemplary embodiment of an immobilization lug of a fixing device according to the invention, secured to the casing of FIG. 2,
- la figure 4 illustre schématiquement, dans une vue en perspective côté arrière, le réflecteur de la figure 1 équipé d'une autre partie d'un dispositif de fixation selon l'invention et avant couplage au boîtier de la figure 2, FIG. 4 schematically illustrates, in a rear perspective view, the reflector of FIG. 1 equipped with another part of a fixing device according to the invention and before coupling to the housing of FIG. 2,
- la figure 5 illustre schématiquement, dans une vue en perspective, un exemple de réalisation de patte de fixation d'un dispositif de fixation selon l'invention, solidarisée au réflecteur de la figure 4, FIG. 5 schematically illustrates, in a perspective view, an exemplary embodiment of a fastening tab of a fastening device according to the invention, secured to the reflector of FIG. 4;
- la figure 6 illustre schématiquement, dans une vue en perspective, le couplage entre la première patte de fixation et la première patte d'immobilisation du dispositif de fixation illustré sur les figures 2 et 4, FIG. 6 schematically illustrates, in a perspective view, the coupling between the first fixing lug and the first immobilizing lug of the fixing device illustrated in FIGS. 2 and 4;
- la figure 7 illustre schématiquement, dans une vue en perspective, le couplage entre la deuxième patte de fixation et la deuxième patte d'immobilisation du dispositif de fixation illustré sur les figures 2 et 4,FIG. 7 schematically illustrates, in a perspective view, the coupling between the second fixing lug and the second immobilizing lug of the fixing device illustrated in FIGS. 2 and 4;
- la figure 8 illustre schématiquement, dans une vue en coupe, le couplage entre la troisième patte de fixation et la troisième patte d'immobilisation du dispositif de fixation illustré sur les figures 2 et 4, et FIG. 8 schematically illustrates, in a sectional view, the coupling between the third fixing lug and the third immobilizing lug of the fixing device illustrated in FIGS. 2 and 4, and
- la figure 9 illustre schématiquement, dans une vue en perspective côté avant, le couplage entre une patte auxiliaire et un logement du dispositif de fixation illustré sur les figures 2 et 4.  - Figure 9 schematically illustrates, in a front perspective view, the coupling between an auxiliary lug and a housing of the fastener shown in Figures 2 and 4.
Les dessins annexés pourront non seulement servir à compléter l'invention, mais aussi contribuer à sa définition, le cas échéant. L'invention a pour but de proposer un dispositif (D) destiné à permettre la fixation d'un premier élément (R) sur un second élément (BT). The attached drawings may not only serve to complete the invention, but also contribute to its definition, if any. The invention aims to provide a device (D) for allowing the attachment of a first element (R) on a second element (BT).
Dans ce qui suit, on considère, à titre d'exemple non limitatif, que le premier élément (R) est un réflecteur d'un bloc optique (BO) et que le second élément (BT) est un boîtier de ce même bloc optique (BO). Mais, l'invention n'est pas limitée à ces types de premier et second éléments. Elle concerne en effet tout type de premier élément devant être fixé sur un second élément de n'importe quel type. On notera que le bloc optique (BO) comprend généralement en complément au moins une glace solidarisée à la partie avant de son boîtier (BT), ainsi qu'éventuellement un masque (M) intercalé entre son réflecteur (R) et son masque (M).  In the following, it is considered, by way of nonlimiting example, that the first element (R) is a reflector of an optical block (BO) and the second element (BT) is a case of this same optical block. (BO). But, the invention is not limited to these types of first and second elements. It concerns indeed any type of first element to be fixed on a second element of any type. It will be noted that the optical block (BO) generally comprises in addition at least one ice solidarized at the front part of its housing (BT), as well as possibly a mask (M) interposed between its reflector (R) and its mask (M ).
Par ailleurs, on considère dans ce qui suit, à titre d'exemple non limitatif, que le bloc optique (BO) est un feu arrière de signalisation destiné à être installé à l'arrière d'un véhicule, éventuellement de type automobile. Mais, l'invention n'est pas limitée à ce type d'application. Elle concerne également certains blocs optiques, comme par exemple des phares (ou projecteurs avant), destinés à être installés à l'avant d'un véhicule, éventuellement de type automobile.  Furthermore, it is considered in the following, by way of non-limiting example, the optical block (BO) is a signal rear lamp to be installed at the rear of a vehicle, possibly automotive type. But, the invention is not limited to this type of application. It also relates to certain optical blocks, such as headlights (or headlights), intended to be installed at the front of a vehicle, possibly of the automotive type.
Enfin, on considère dans ce qui suit, à titre d'exemple non limitatif, que le réflecteur (R) est destiné à réfléchir la lumière qui est émise par une source de lumière dédiée à la fonction dite DRL (pour "Daytime running Light (or Lamp)" - signalisation lumineuse allumée automatiquement lorsque le véhicule se met à avancer). Mais, l'invention n'est pas limitée à ce type de fonction.  Finally, it is considered in the following, by way of non-limiting example, that the reflector (R) is intended to reflect light which is emitted by a light source dedicated to the so-called DRL function (for "Daytime running Light" or Lamp) "- illuminated warning light automatically when the vehicle starts to move forward). But, the invention is not limited to this type of function.
On a schématiquement illustré sur la figure 1 , une partie d'un exemple de bloc optique multifonction BO comprenant notamment un premier élément R, qui constitue ici un réflecteur moulé, un second élément BT, qui constitue ici un boîtier moulé et auquel est solidarisé le réflecteur R, et un troisième élément M, qui constitue ici un masque moulé solidarisé au boîtier BT et/ou au réflecteur R et qui est intercalé entre le réflecteur R et une glace du bloc optique BO (non représentée).  FIG. 1 diagrammatically illustrates a part of an example of a multifunction optical unit BO comprising in particular a first element R, which here constitutes a molded reflector, a second element BT, which here constitutes a molded case and to which the reflector R, and a third element M, which here constitutes a molded mask secured to the LV housing and / or the reflector R and which is interposed between the reflector R and an ice of the optical block BO (not shown).
Le réflecteur (ou premier élément) R définit une cavité qui est ouverte dans sa partie avant (orientée vers l'extérieur) et qui comprend au moins une ouverture OV (voir figure 1 ) pour le passage d'une partie au moins d'une source de lumière, comme par exemple une ampoule ou une lampe ou encore une diode électroluminescente, et/ou pour permettre le câblage électrique d'une telle source de lumière. The reflector (or first element) R defines a cavity which is open in its front part (facing outwards) and which comprises at least one opening OV (see Figure 1) for the passage of at least a portion of a light source, such as a bulb or a lamp or a light-emitting diode, and / or to allow the electrical wiring of such a source from light.
On notera que l'on a représenté un repère orthonormé (X, Y, Z) sur certaines des figures 1 à 9 afin de faciliter le repérage de plans et de directions caractéristiques utiles à la compréhension de l'invention.  Note that there is shown an orthonormal reference (X, Y, Z) in some of Figures 1 to 9 to facilitate the identification of planes and characteristic directions useful for understanding the invention.
On notera également que le boîtier BT peut être éventuellement solidarisé à plusieurs premiers éléments R de formes similaires ou différentes.  It will also be noted that the housing BT may possibly be secured to a plurality of first elements R of similar or different shapes.
Le couplage entre le réflecteur R et le boîtier BT se fait au moyen d'un dispositif de fixation D selon l'invention. Comme illustré sur les figures 2 à 9 (et plus particulièrement sur les figures 2 et 4), un tel dispositif (de fixation) D comporte des première et seconde parties.  The coupling between the reflector R and the LV housing is done by means of a fixing device D according to the invention. As illustrated in Figures 2 to 9 (and more particularly in Figures 2 and 4), such a device (fixing) D comprises first and second parts.
La première partie comprend au moins des première PF1 et deuxième PF2 pattes de fixation qui sont solidarisées au premier élément R (ici le réflecteur). La partie seconde comprend au moins des première PU et deuxième PI2 pattes d'immobilisation qui sont solidarisées au second élément BT (ici le boîtier).  The first part comprises at least first PF1 and second PF2 fixing lugs which are secured to the first element R (here the reflector). The second part comprises at least first PU and second PI2 immobilization tabs which are secured to the second element BT (here the housing).
Comme illustré sur la figure 2, les première PU et deuxième PI2 pattes d'immobilisation sont solidarisées au boîtier BT dans des endroits différents et dans des premier et second plans qui présentent des orientations différentes.  As illustrated in Figure 2, the first PU and second PI2 immobilization tabs are secured to the LV housing in different locations and in first and second planes that have different orientations.
Dans l'exemple non limitatif illustré, le premier plan est sensiblement défini par les directions X et Z, tandis que le second plan est sensiblement défini par les directions X et Y. Par conséquent, les premier et second plans sont sensiblement orthogonaux entre eux. Mais, cela n'est pas une obligation. Ils peuvent en effet présenter une désorientation supérieure ou inférieure à 90° (dès lors qu'elle est différente de 0° ou 180°).  In the nonlimiting example illustrated, the first plane is substantially defined by the X and Z directions, while the second plane is substantially defined by the X and Y directions. Therefore, the first and second planes are substantially orthogonal to each other. But, this is not an obligation. They can indeed have a disorientation greater than or less than 90 ° (since it is different from 0 ° or 180 °).
Comme illustré non limitativement sur la figure 2, les endroits de solidarisation des première PU et deuxième PI2 pattes d'immobilisation diffèrent de préférence non seulement suivant la première direction Y, mais également suivant la deuxième direction Z et suivant la troisième direction X.  As illustrated without limitation in FIG. 2, the places of attachment of the first PUs and second PI2 immobilization tabs preferably differ not only in the first direction Y, but also in the second direction Z and in the third direction X.
Par ailleurs, selon l'invention, chaque patte d'immobilisation Pli (ici i = 1 à 3) comporte une ouverture centrale OC, dont on comprendra la fonction plus loin. Moreover, according to the invention, each immobilization leg Pli (here i = 1 to 3) has a central opening OC, whose function will be understood later.
Comme illustré sur la figure 4, les première PF1 et deuxième PF2 pattes de fixation sont solidarisées au réflecteur R dans des endroits différents et suivant des première et deuxième directions différentes.  As illustrated in FIG. 4, the first PF1 and second PF2 fixing lugs are secured to the reflector R in different locations and in first and second different directions.
Dans l'exemple non limitatif illustré, le première direction est sensiblement définie par la direction Y, tandis que la deuxième direction est sensiblement définie par la direction Z. Par conséquent, les première et deuxième directions sont sensiblement orthogonales entre elles. Mais, cela n'est pas une obligation. Elles peuvent en effet présenter une désorientation supérieure ou inférieure à 90 ° (dès lors qu'elle est différente de 0 ° ou 180 °).  In the nonlimiting example illustrated, the first direction is substantially defined by the direction Y, while the second direction is substantially defined by the direction Z. Therefore, the first and second directions are substantially orthogonal to each other. But, this is not an obligation. They can indeed have a disorientation greater than or less than 90 ° (since it is different from 0 ° or 180 °).
Comme illustré non limitativement sur la figure 2, les endroits de solidarisation des première PF1 et deuxième PF2 pattes de fixation diffèrent de préférence non seulement suivant la première direction Y, mais également suivant la deuxième direction Z et suivant la troisième direction X.  As illustrated without limitation in FIG. 2, the points of attachment of the first PF1 and second PF2 fixing tabs preferably differ not only in the first direction Y, but also in the second direction Z and in the third direction X.
Par ailleurs, également selon l'invention et comme illustré sur la figure 5, chaque patte de fixation Pli (ici i = 1 à 3) comprend une partie centrale PC et une partie terminale PT. Plus précisément, chaque partie centrale PC est propre à être logée et immobilisée par clippage dans l'ouverture centrale OC de la patte d'immobilisation Pli correspondante, et comporte une première extrémité solidarisée au boîtier BT et une seconde extrémité prolongée par la partie terminale associée PT selon un angle qui est choisi de manière à permettre l'appui de cette partie terminale PT sur le boîtier BT pour caler le réflecteur R suivant une direction (Y ou Z) qui est sensiblement perpendiculaire à l'ouverture centrale OC correspondante.  Moreover, also according to the invention and as illustrated in FIG. 5, each fixing lug P11 (here i = 1 to 3) comprises a central portion PC and an end portion PT. More specifically, each central portion PC is adapted to be housed and immobilized by clipping in the central opening OC of the corresponding immobilization tab Pli, and has a first end secured to the housing BT and a second end extended by the associated end portion. PT at an angle which is chosen so as to allow the support of this end portion PT on the LV housing to wedge the reflector R in a direction (Y or Z) which is substantially perpendicular to the corresponding central opening OC.
On notera que dans l'exemple non limitatif illustré, le dispositif D comprend une troisième patte d'immobilisation PI3 destinée à coopérer avec une troisième patte de fixation PF3. Ce mode de réalisation est destiné à améliorer la précision du positionnement du réflecteur R par rapport au boîtier BT. Mais, le dispositif D pourrait ne comprendre que les première PU et deuxième PI2 pattes d'immobilisation et les première PF1 et deuxième PF2 pattes de fixation (bien que cela ne soit pas optimal en terme de qualité de fixation et de précision de positionnement du réflecteur R). La troisième patte d'immobilisation PI3 est solidarisée au boîtier BT dans un troisième endroit, différent de ceux où sont solidarisées les première PU et deuxième PI2 pattes d'immobilisation (de préférence en X, Y et Z), et dans un plan qui est (de préférence) sensiblement parallèle au second plan (XY). Par ailleurs, la troisième patte d'immobilisation PI3 comporte également une ouverture centrale OC. Note that in the nonlimiting example illustrated, the device D comprises a third immobilization lug PI3 intended to cooperate with a third bracket PF3. This embodiment is intended to improve the positioning accuracy of the reflector R with respect to the LV housing. But, the device D could include only the first PU and second PI2 immobilization tabs and the first PF1 and second PF2 brackets (although this is not optimal in terms of quality of fixation and positioning accuracy of the reflector R). The third immobilization leg PI3 is secured to the LV housing in a third place, different from those where the first PU and second PI2 locking tabs are secured (preferably in X, Y and Z), and in a plane which is (preferably) substantially parallel to the second plane (XY). In addition, the third immobilization leg PI3 also has a central opening OC.
La troisième patte de fixation PF3 est solidarisée au réflecteur R dans un troisième endroit, différent de ceux où sont solidarisées les première PF1 et deuxième PF2 pattes de fixation (de préférence en X, Y et Z), et suivant (de préférence) la deuxième direction Z. Par ailleurs, la troisième patte de fixation PF3 comprend également une partie centrale PC qui est propre à être logée et immobilisée par clippage dans l'ouverture centrale OC de la troisième patte d'immobilisation PI3, et qui comporte une première extrémité solidarisée au boîtier BT et une seconde extrémité prolongée par une partie terminale associée PT selon un angle qui est choisi de manière à permettre l'appui de cette partie terminale PT sur le boîtier BT pour caler le réflecteur R suivant une direction qui est sensiblement perpendiculaire à l'ouverture centrale OC correspondante.  The third fixing lug PF3 is secured to the reflector R in a third location, different from those where the first PF1 and second PF2 fastening lugs (preferably X, Y and Z) and the (preferably) second one are secured. direction Z. Furthermore, the third fixing lug PF3 also comprises a central part PC which is adapted to be housed and immobilized by clipping in the central opening OC of the third immobilization lug PI3, and which has a first end secured to to the housing BT and a second end extended by an associated end portion PT at an angle which is selected to allow the support of this end portion PT on the housing BT to wedge the reflector R in a direction which is substantially perpendicular to the corresponding central opening OC.
On notera que dans l'exemple non limitatif illustré sur les figures 2 à 9, la direction de calage du réflecteur R, offerte par la partie terminale PT de la troisième patte de fixation PF3, est sensiblement la deuxième direction Z. Mais, cela n'est pas obligatoire. Cette direction de calage pourrait être différente de celle offerte par la partie terminale PT de la deuxième patte de fixation PF2I.  Note that in the non-limiting example illustrated in Figures 2 to 9, the setting direction of the reflector R, offered by the end portion PT of the third fixing lug PF3, is substantially the second direction Z. But, this is not obligatory. This timing direction could be different from that offered by the end portion PT of the second bracket PF2I.
De préférence chaque angle choisi d'une patte de fixation PFi est compris entre environ 92° et environ 150°. Il dépend en fait de l'environnement de la patte d'immobilisation Pli avec laquelle doit coopérer la patte de fixation PFi considérée. Par exemple, et comme illustré non limitativement sur la figure 6, la partie terminale PT de la première patte de fixation PF1 peut s'appuyer sur une zone de butée ZB du boîtier BT, qui est située au voisinage de l'endroit où est solidarisée la première patte d'immobilisation PU . De même, et comme illustré non limitativement sur la figure 7, la partie terminale PT de la deuxième patte de fixation PF2 peut s'appuyer sur une nervure transversale N du boîtier BT, qui est située sous la deuxième patte d'immobilisation PI2. Enfin, et comme illustré non limitativement sur la figure 8, la partie terminale PT de la troisième patte de fixation PF3 peut s'appuyer sur un rebord périphérique RP du boîtier BT, qui est situé au dessus de la troisième patte d'immobilisation PI3. Il est important de noter que sur les figures 6 à 8, les parties terminales PT des pattes de fixation PFi ne sont pas encore en appui sur le boîtier BT. Cela résulte du fait que ces figures matérialisent des phases intermédiaires pendant les opérations de couplage du réflecteur R au boîtier BT. Preferably each selected angle of a PFi bracket is between about 92 ° and about 150 °. It depends in fact on the environment of the Pli immobilization tab with which the PFi fixing lug must be considered. For example, and as shown in non-limiting manner in FIG. 6, the end portion PT of the first fixing lug PF1 may bear on an abutment zone ZB of the housing BT, which is situated in the vicinity of the place where is secured the first immobilization leg PU. Similarly, and as illustrated without limitation in FIG. 7, the end portion PT of the second fixing lug PF2 can rest on a transverse rib N of the LV housing, which is located under the second immobilization leg PI2. Finally, and as illustrated without limitation in FIG. 8, the end portion PT of the third fixing lug PF3 can bear on a peripheral rim RP of the housing BT, which is situated above the third immobilization lug PI3. It is important to note that in FIGS. 6 to 8, the end portions PT of the fixing brackets PFi are not yet resting on the housing BT. This results from the fact that these figures materialize intermediate phases during the coupling operations of the reflector R to the LV housing.
On notera également que dans l'exemple non limitatif illustré sur les figures 2 à 9 les parties terminales PT des deuxième PF2 et troisième PF3 pattes de fixation sont solidarisées selon des angles choisis qui sont propres à permettre le calage du réflecteur R suivant la deuxième direction Z mais selon des sens opposés (voir plus précisément les figures 7 et 8).  It will also be noted that in the non-limiting example illustrated in FIGS. 2 to 9, the end portions PT of the second PF2 and the third PF3 fixing tabs are secured at selected angles which are suitable for allowing the setting of the reflector R in the second direction. Z but in opposite directions (see more precisely Figures 7 and 8).
On notera également que dans l'exemple non limitatif illustré sur les figures 2 à 9, les parties terminales PT des deuxième PF2 et troisième PF3 pattes de fixation sont propres à permettre un calage du réflecteur R par déformation élastique. Mais, cela n'est pas obligatoire. En effet, le calage pourrait se faire par frottement ou par ancrage local (éventuellement par clippage), par exemple.  Note also that in the non-limiting example illustrated in Figures 2 to 9, the end portions PT of the second PF2 and third PF3 mounting tabs are adapted to allow a setting of the reflector R by elastic deformation. But, this is not mandatory. Indeed, the wedging could be by friction or local anchoring (possibly by clipping), for example.
On comprendra que compte tenu des choix effectués pour illustrer un exemple de réalisation du dispositif D, la coopération de la première patte de fixation PF1 avec la première patte d'immobilisation PU offre un calage du réflecteur R sensiblement suivant les première Y et troisième X directions, la coopération de la deuxième patte de fixation PF2 avec la deuxième patte d'immobilisation PI2 offre un calage du réflecteur R sensiblement suivant les deuxième Z et troisième X directions (avec une contrainte de haut en bas), et la coopération de la troisième patte de fixation PF3 avec la troisième patte d'immobilisation PI3 offre un calage du réflecteur R sensiblement suivant les deuxième Z et troisième X directions (avec une contrainte de bas en haut). Un tel multi-calage assure un positionnement très précis du réflecteur R par rapport au boîtier BT, ce qui lui permet d'assurer de façon optimale la fonction photométrique pour laquelle il a été conçu. On notera également que dans l'exemple non limitatif illustré sur les figures 2 à 9, les trois pattes d'immobilisation Pli sont sensiblement identiques. Mais, cela n'est pas obligatoire. Elles pourraient en effet présenter des formes légèrement différentes. It will be understood that in view of the choices made to illustrate an embodiment of the device D, the cooperation of the first fixing lug PF1 with the first immobilization lug PU provides a setting of the reflector R substantially along the first Y and third X directions , the cooperation of the second fixing lug PF2 with the second immobilization leg PI2 provides a setting of the reflector R substantially along the second Z and third X directions (with a constraint from top to bottom), and the cooperation of the third leg Fixing PF3 with the third immobilization leg PI3 provides a setting of the reflector R substantially along the second Z and third X directions (with a constraint from bottom to top). Such multi-setting ensures a very precise positioning of the reflector R relative to the LV housing, which allows it to optimally ensure the photometric function for which it was designed. Note also that in the non-limiting example illustrated in Figures 2 to 9, the three immobilization lugs Pli are substantially identical. But, this is not mandatory. They could indeed have slightly different shapes.
Afin de permettre le logement et l'immobilisation d'une partie centrale PC de patte d'immobilisation Pli, chaque ouverture centrale OC d'une patte de fixation PFi peut comprendre, comme illustré non limitativement sur la figure 3, une partie évasée PE destinée à faciliter l'introduction de la partie centrale PC correspondante et prolongée par une partie arrondie PA destinée à immobiliser étroitement (bien que de façon réversible) la partie centrale PC correspondante. Dans ce cas, et comme illustré non limitativement sur la figure 5, chaque partie centrale PC de patte de fixation PFi peut avantageusement présenter au moins une face avant dont la forme est arrondie afin de pouvoir être logée et immobilisée de façon optimale dans la partie arrondie PA de l'ouverture centrale OC correspondante. On entend ici par face avant la face qui est introduite en premier dans la partie évasée PE, puis dans la partie arrondie PA.  In order to allow the housing and the immobilization of a central part PC of immobilization leg Pli, each central opening OC of a fixing lug PFi can comprise, as illustrated without limitation in FIG. 3, a flared part PE intended to facilitate the introduction of the central part PC corresponding and prolonged by a rounded part PA intended to immobilize closely (although reversibly) the corresponding central PC part. In this case, and as illustrated in non-limiting manner in FIG. 5, each central portion PC of the fixing lug PFi may advantageously have at least one front face whose shape is rounded so that it can be housed and immobilized optimally in the rounded part. PA of the corresponding central opening OC. Here is meant by front face the face which is introduced first in the flared portion PE, then in the rounded portion PA.
Par exemple, et comme illustré non limitativement, chaque partie arrondie PA d'une partie centrale PC peut être semi circulaire, et chaque face avant peut présenter une forme au moins semi cylindrique circulaire.  For example, and as illustrated without limitation, each rounded portion PA of a central portion PC may be semi circular, and each front face may have a shape at least semi circular cylindrical.
Par ailleurs, et toujours comme illustré non limitativement sur la figure 3, chaque patte d'immobilisation Pli peut avantageusement comprendre deux sous-parties SP1 et SP2 qui sont légèrement flexibles, (de préférence) sensiblement identiques, (de préférence) positionnées de façon symétrique par rapport à un plan médian, et définissant conjointement une partie évasée PE et une partie arrondie PA. On comprendra que cette décomposition en deux sous-parties SP1 et SP2 assure une flexibilité qui permet d'augmenter momentanément la largeur de l'entrée d'une partie arrondie PA lorsque l'on introduit une patte de fixation PFi dans l'ouverture centrale OC de la patte d'immobilisation correspondante Pli. Mais, bien entendu, d'autres modes de réalisation des pattes d'immobilisation Pli peuvent être envisagés, dès lors qu'ils assurent un effet de clippage.  Moreover, and still as illustrated in non-limiting manner in FIG. 3, each immobilization tab P1 may advantageously comprise two subparts SP1 and SP2 which are slightly flexible, (preferably) substantially identical, (preferably) symmetrically positioned. relative to a median plane, and jointly defining a flared portion PE and a rounded portion PA. It will be understood that this decomposition into two subparts SP1 and SP2 provides flexibility that makes it possible to momentarily increase the width of the inlet of a rounded portion PA when a PFi fastening lug is introduced into the central opening OC of the corresponding immobilization leg Pli. But, of course, other embodiments of the Pli immobilization lugs can be envisaged, provided they provide a clipping effect.
On notera également, comme illustré non limitativement sur les figures 1 , 2, 4 et 9, que le dispositif D peut éventuellement comprendre une patte auxiliaire PX solidarisée au réflecteur R, et un logement LO défini dans le boîtier BT et destiné à loger une partie de cette patte auxiliaire PX. Cette option est destinée à empêcher qu'une rotation du réflecteur R ne survienne par rapport au boîtier BT, notamment pendant les opérations de couplage. Dans l'exemple illustré, le logement LO est défini dans une partie supérieure du boîtier BT, sur le rebord périphérique RB, et donc la patte auxiliaire PX est définie sur une partie supérieure du réflecteur R, à un niveau suivant la deuxième direction Z qui est voisin de celui où est implantée la troisième patte de fixation PF3. Dans ce cas, les opérations de couplage peuvent se dérouler comme indiqué ci-après. On commence par loger la patte auxiliaire PX dans le logement LO du boîtier BT, puis on clippe la première patte de fixation PF1 dans l'ouverture centrale OC de la première patte d'immobilisation PU , puis on clippe la deuxième PF2 (ou troisième PF3) patte de fixation dans l'ouverture centrale OC de la deuxième PI2 (ou troisième PI3) patte d'immobilisation, puis on clippe la troisième PF3 (ou deuxième PF2) patte de fixation dans l'ouverture centrale OC de la troisième PI3 (ou deuxième PI2) patte d'immobilisation. It will also be noted, as illustrated without limitation, on the Figures 1, 2, 4 and 9, the device D may optionally comprise an auxiliary lug PX secured to the reflector R, and a housing LO defined in the housing BT and intended to house a portion of the auxiliary lug PX. This option is intended to prevent rotation of the reflector R occurs relative to the LV housing, especially during the coupling operations. In the illustrated example, the housing LO is defined in an upper part of the housing BT, on the peripheral rim RB, and thus the auxiliary lug PX is defined on an upper part of the reflector R, at a level along the second direction Z which is close to that where is implanted the third bracket PF3. In this case, the coupling operations may proceed as indicated below. First, the auxiliary tab PX is housed in the housing LO of the housing BT, then the first fixing lug PF1 is clipped into the central opening OC of the first immobilization lug PU, and then the second PF2 (or third PF3 is clipped. ) fixing lug in the central opening OC of the second PI2 (or third PI3) immobilizing lug, then clipping the third PF3 (or second PF2) bracket in the central opening OC of the third PI3 (or second PI2) immobilization leg.
Il est important de noter que les pattes de fixation PFi et les pattes d'immobilisation Pli peuvent faire partie intégrante respectivement du réflecteur R et du boîtier BT. Cette solution est particulièrement avantageuse lorsque le réflecteur R et le boîtier BT sont réalisés par moulage, par exemple dans un matériau plastique ou synthétique (tel que le polycarbonate (ou PC) ou le théréphtalate de polybutylène ou thermodur (ou PBT), par exemple). Mais, cela n'est pas obligatoire. En effet, on pourrait envisager que les pattes de fixation PFi et/ou les pattes d'immobilisation Pli soient rapporté(e)s respectivement sur le réflecteur R et/ou le boîtier BT, par exemple par vissage ou collage ou soudage.  It is important to note that the fixing brackets PFi and the immobilization tabs Pli may form an integral part respectively of the reflector R and the housing BT. This solution is particularly advantageous when the reflector R and the LV housing are made by molding, for example in a plastic or synthetic material (such as polycarbonate (or PC) or polybutylene or thermoset therephthalate (or PBT), for example) . But, this is not mandatory. Indeed, it could be envisaged that the fixing lugs PFi and / or the immobilization lugs P11 are attached respectively to the reflector R and / or the housing BT, for example by screwing or gluing or welding.
L'invention ne se limite pas aux modes de réalisation de dispositif de fixation, de premier élément, de second élément et de bloc optique 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 fixing device, first element, second element and optical block described above, only by way of example, but it encompasses all the variants that may be considered by the skilled in the art within the scope of the claims below.

Claims

REVENDICATIONS
1 . Dispositif (D) de fixation d'un premier élément (R) sur un second élément (BT), caractérisé en ce qu'il comprend i) au moins des première (PU ) et deuxième (PI2) pattes d'immobilisation solidarisées audit second élément (BT) dans des endroits différents et dans des premier et second plans présentant des orientations différentes et comportant chacune une ouverture centrale (OC), et ii) au moins des première (PF1 ) et deuxième (PF2) pattes de fixation solidarisées audit premier élément (R) dans des endroits différents et suivant des première et seconde directions différentes, et comprenant chacune une partie centrale (PC) propre à être logée et immobilisée par clippage dans l'ouverture centrale (OC) de ladite première (PF1 ) ou deuxième (PF2) patte d'immobilisation, et une partie terminale (PT) prolongeant ladite partie centrale (PC) selon un angle choisi de manière à s'appuyer sur ledit second élément (BT) pour caler ledit premier élément (R) suivant une direction sensiblement perpendiculaire à ladite ouverture centrale (OC) correspondante. 1. Device (D) for fixing a first element (R) on a second element (BT), characterized in that it comprises i) at least first (PU) and second (PI2) immobilization lugs secured to said second element (BT) in different locations and in first and second planes having different orientations and each having a central opening (OC), and ii) at least first (PF1) and second (PF2) fastening lugs secured to said first element (R) in different locations and in first and second different directions, and each comprising a central portion (PC) adapted to be housed and immobilized by clipping in the central opening (OC) of said first (PF1) or second (PF2) immobilizing tab, and an end portion (PT) extending said central portion (PC) at an angle selected to abut on said second member (BT) to wedge said first member (R) following a e direction substantially perpendicular to said corresponding central opening (OC).
2. Dispositif selon la revendication 1 , caractérisé en ce qu'il comprend i) une troisième patte d'immobilisation (PI3) solidarisée audit second élément (BT) dans un autre endroit et dans un plan sensiblement parallèle audit second plan et comportant une ouverture centrale (OC), et ii) une troisième patte de fixation (PF3) solidarisée audit premier élément (R) dans un autre endroit et suivant ladite seconde direction, et comprenant une partie centrale (PC) propre à être logée et immobilisée par clippage dans l'ouverture centrale (OC) de ladite troisième patte d'immobilisation (PI3), et une partie terminale (PT) prolongeant ladite partie centrale (PC) selon un angle choisi de manière à s'appuyer sur ledit second élément (BT) pour caler ledit premier élément (R) suivant une direction sensiblement perpendiculaire à ladite ouverture centrale (OC) correspondante.  2. Device according to claim 1, characterized in that it comprises i) a third immobilization lug (PI3) secured to said second element (BT) in another location and in a plane substantially parallel to said second plane and having an opening central (OC), and ii) a third fixing lug (PF3) secured to said first element (R) in another location and in said second direction, and comprising a central portion (PC) adapted to be housed and immobilized by clipping in the central aperture (OC) of said third immobilization tab (PI3), and an end portion (PT) extending said central portion (PC) at an angle selected to abut on said second element (BT) to wedging said first element (R) in a direction substantially perpendicular to said corresponding central opening (OC).
3. Dispositif selon la revendication 2, caractérisé en ce que lesdites parties terminales (PT) des deuxième (PF2) et troisième (PF3) pattes de fixation sont solidarisées selon des angles choisis propres à permettre le calage dudit premier élément (R) suivant une même direction mais selon des sens opposés. 3. Device according to claim 2, characterized in that said end portions (PT) of the second (PF2) and third (PF3) mounting tabs are secured at selected angles to allow the wedging said first element (R) in the same direction but in opposite directions.
4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que ladite partie terminale (PT) de la deuxième patte de fixation (PF2) et/ou ladite partie terminale (PT) de la troisième patte de fixation (PF3) sont/est propre(s) à permettre un calage par déformation élastique.  4. Device according to one of claims 1 to 3, characterized in that said end portion (PT) of the second bracket (PF2) and / or said end portion (PT) of the third bracket (PF3) are / is clean (s) to allow a setting by elastic deformation.
5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que chaque ouverture centrale (OC) comprend une partie évasée (PE) d'introduction prolongée par une partie arrondie (PA) d'immobilisation, et en ce que chaque partie centrale (PC) d'une patte de fixation (PFi) présente une face avant de forme arrondie et destinée à être logée et immobilisée dans ladite partie arrondie (PA) de l'ouverture centrale (OC) correspondante.  5. Device according to one of claims 1 to 4, characterized in that each central opening (OC) comprises a flared portion (PE) introduction extended by a rounded portion (PA) of immobilization, and in that each central portion (PC) of a bracket (PFi) has a rounded front face and intended to be housed and immobilized in said rounded portion (PA) of the corresponding central opening (OC).
6. Dispositif selon la revendication 5, caractérisé en ce que chaque partie arrondie (PA) est semi circulaire, et en ce que chaque face avant présente une forme semi cylindrique.  6. Device according to claim 5, characterized in that each rounded portion (PA) is semi-circular, and in that each front face has a semi-cylindrical shape.
7. Dispositif selon l'une des revendications 5 et 6, caractérisé en ce que chaque patte d'immobilisation (Pli) comprend deux sous-parties légèrement flexibles, sensiblement identiques, positionnées de façon symétrique par rapport à un plan médian, et définissant conjointement une partie évasée (PE) et une partie arrondie (PA).  7. Device according to one of claims 5 and 6, characterized in that each immobilizing tab (P1) comprises two slightly flexible sub-parts, substantially identical, positioned symmetrically with respect to a median plane, and defining together a flared part (PE) and a rounded part (PA).
8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce que lesdits premier et second plans sont sensiblement orthogonaux entre eux, et lesdites première et seconde directions sont sensiblement orthogonales entre elles.  8. Device according to one of claims 1 to 7, characterized in that said first and second planes are substantially orthogonal to each other, and said first and second directions are substantially orthogonal to each other.
9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que ledit angle choisi est compris entre environ 92° et environ 150°.  9. Device according to one of claims 1 to 8, characterized in that said selected angle is between about 92 ° and about 150 °.
10. Dispositif selon l'une des revendications 1 à 9, caractérisé en ce qu'il comprend une patte auxiliaire (PX) solidarisée audit premier élément (R), et un logement (LO) défini dans ledit second élément (BT) et destiné à loger une partie de ladite patte auxiliaire (PX) afin d'empêcher une rotation dudit premier élément (R) par rapport audit second élément (BT).  10. Device according to one of claims 1 to 9, characterized in that it comprises an auxiliary lug (PX) secured to said first element (R), and a housing (LO) defined in said second element (BT) and for housing a portion of said auxiliary tab (PX) to prevent rotation of said first element (R) relative to said second element (BT).
1 1 . Elément (BT), caractérisé en ce qu'il comprend chaque patte d'immobilisation (Pli) et ledit éventuel logement (LO) d'un dispositif de fixation (D) selon l'une des revendications 1 à 10. 1 1. Element (BT), characterized in that it comprises each immobilizing lug (P1) and said possible housing (LO) of a fixing device (D) according to one of claims 1 to 10.
12. Elément (R), caractérisé en ce qu'il comprend chaque patte de fixation (PFi) et ladite éventuelle patte auxiliaire (PX) d'un dispositif de fixation (D) selon l'une des revendications 1 à 10.  12. Element (R), characterized in that it comprises each fixing lug (PFi) and said optional auxiliary lug (PX) of a fixing device (D) according to one of claims 1 to 10.
13. Bloc optique (BO) de véhicule, caractérisé en ce qu'il comprend un élément (BT) selon la revendication 1 1 , constituant un boîtier (BT), et un élément (R) selon la revendication 12, constituant un réflecteur.  13. Optical block (BO) of a vehicle, characterized in that it comprises a member (BT) according to claim 1 1, constituting a housing (BT), and an element (R) according to claim 12, constituting a reflector.
EP11743849.9A 2010-07-28 2011-07-12 Device for attaching a first element onto a second element by means of the engagement between lock lugs and attachment lugs Withdrawn EP2598795A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1056198A FR2963394B1 (en) 2010-07-28 2010-07-28 DEVICE FOR FIXING A FIRST ELEMENT ON A SECOND ELEMENT BY COOPERATION BETWEEN FIXING LEGS AND FIXING LEGS
PCT/FR2011/051659 WO2012022870A1 (en) 2010-07-28 2011-07-12 Device for attaching a first element onto a second element by means of the engagement between lock lugs and attachment lugs

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EP2598795A1 true EP2598795A1 (en) 2013-06-05

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FR3056483B1 (en) * 2016-09-26 2019-04-05 Valeo Vision AUTOMOTIVE VEHICLE LIGHTING DEVICE HAVING AN OPTICAL MODULE AND A FRONT MASK
DE102017103566A1 (en) * 2017-02-22 2018-08-23 Automotive Lighting Reutlingen Gmbh Lighting device of a motor vehicle
FR3068327B1 (en) * 2017-06-30 2019-08-23 Faurecia Interieur Industrie VEHICLE INTERIOR ASSEMBLY
FR3088869B1 (en) * 2018-11-26 2022-07-08 Psa Automobiles Sa Device for pre-positioning and holding an element on a box
FR3095852A1 (en) * 2019-05-07 2020-11-13 Psa Automobiles Sa Daytime signaling module for motor vehicles and lighting and signaling assembly comprising said module
FR3113107B1 (en) * 2020-07-30 2022-09-02 Psa Automobiles Sa Downstream box for optical module intended to equip a motor vehicle

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JP3883339B2 (en) * 1999-10-01 2007-02-21 株式会社小糸製作所 Vehicle lighting
FR2941282B1 (en) * 2009-01-16 2013-10-18 Peugeot Citroen Automobiles Sa LIGHT COVER MASK FOR AN OPTICAL BLOCK OF A MOTOR VEHICLE

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