WO2023135372A1 - Headlamp housing for motor vehicle, provided with a guide ramp - Google Patents
Headlamp housing for motor vehicle, provided with a guide ramp Download PDFInfo
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- WO2023135372A1 WO2023135372A1 PCT/FR2022/052221 FR2022052221W WO2023135372A1 WO 2023135372 A1 WO2023135372 A1 WO 2023135372A1 FR 2022052221 W FR2022052221 W FR 2022052221W WO 2023135372 A1 WO2023135372 A1 WO 2023135372A1
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- WIPO (PCT)
- Prior art keywords
- main body
- housing
- guide ramp
- inclination
- anchoring lug
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/0491—Shock absorbing devices therefor
- B60Q1/0495—Frangible brackets
Definitions
- Headlight housing for a motor vehicle provided with a guide ramp
- the present invention generally relates to the field of headlamps for motor vehicles. It relates more particularly to a casing of such a projector.
- a motor vehicle comprises, in known manner, optical units mounted at the front of said vehicle and commonly referred to as headlamps. These make it possible, on the one hand, to illuminate the environment of the vehicle to improve the visibility of the driver, in particular in night conditions, and, on the other hand, to signal the position of the vehicle to other road users.
- a projector conventionally comprises a housing comprising a hollow main body receiving at least one light module and being closed by an outer cover glass.
- This box thus conventionally comprises a rear anchoring lug protruding from the rear of its hollow main body and intended to be fixed by screwing to a support on the front side wing of the vehicle.
- shockability shock consists of estimating the cost of repairs on the vehicle tested. , when the latter strikes frontally, on its front left side and at a speed of 16 km/h, a rigid wall inclined at an angle of 10° with respect to a plane transverse to the axis of this vehicle with 40% overlap .
- the rear anchoring bracket of the housing is generally configured so as to also break during this repairability impact.
- the repair is limited to the installation of a replacement anchor bracket that is screwed onto the housing.
- the hollow main body of the housing As it moves longitudinally rearward during this repairability impact, it is common for the hollow main body of the housing to abut against the forward end of the side wing support which also deforms and recoils.
- the present invention therefore aims to prevent the deterioration of the front side door during a reparability shock, so as to limit the costs of repairing such a shock and to obtain a better classification of the vehicle with the insurance companies.
- a headlamp housing for a motor vehicle comprising a hollow main body capable of receiving at least one light module and intended to be closed by an outer cover glass, as well as a projecting rear anchoring lug at the rear of said body and intended to be fixed by screwing to a front side wing support of said vehicle, said rear anchoring lug being connected to said main body by a frangible weakening zone configured to break on the occurrence of a frontal impact so as to cause the separation of this rear anchoring lug from said main body; characterized in that the rear face of said main body has a guide ramp sloping forwards and downwards and arranged so as to, upon the occurrence of a said frontal impact causing the recoil of said main body and the rupture of said frangible zone, to come into contact with the front end of said rear anchor bracket or of said front side wing support and to cooperate by sliding with said front end in order to cause said main body to pivot upwards .
- the guide ramp of the housing makes it possible to very significantly reduce the intensity of the recoil force exerted by this main body on the tab rear anchorage and on the front side wing support to which it remains attached, which limits the recoil of this fender support and prevents it from impacting the corresponding front side door of the vehicle.
- the invention thus makes it possible to limit the repair costs of a reparability shock and to obtain a better classification of the vehicle with the insurance companies.
- said frangible zone extends along a line oriented transversely and said guide ramp extends from and below said frangible zone;
- said guide ramp comprises a first upper portion forming a first angle of inclination with the vertical as well as a second lower portion extending said first portion downwards and forming a second angle of inclination with the vertical, greater than said first angle tilt;
- said first angle of inclination is less than 30°
- said second angle of inclination is greater than 45°
- said guide ramp extends over a total height of at least 50 millimetres
- - Said housing is made of a plastic material filled with talc; and or
- the invention also relates, in a second aspect, to a headlamp for a motor vehicle comprising such a housing comprising a hollow main body, at least one light module housed in said body, and an outer cover glass closing said body.
- the invention relates in a third aspect to a motor vehicle comprising such a headlight.
- FIG. 1 shows a rear three-quarter perspective view of a motor vehicle headlight housing according to the invention
- FIG. 2 is a perspective view from above of the fixing zone of the rear anchoring lug of the headlight housing of FIG. 1 on a support on the side of the vehicle;
- FIG. 1 shows a perspective view from another angle of the fixing area of the rear anchoring lug of the headlight housing of Figure 1 on a vehicle side fender support;
- FIG 4 is a sectional view of the upper part of the headlight housing of Figure 1, taken along a vertical transverse plane crossing the rear anchoring bracket;
- FIGS. 5] and [Fig 6] are views illustrating successive steps of the movement kinematics of the headlight housing of Figure 1 during the performance of a repairability impact test.
- Figure 1 shows a motor vehicle headlight housing 100 according to the invention, intended to be mounted on the body structure of this vehicle by integrating with the contours of the adjacent bodywork parts and those of the bumper .
- the housing 100 comprises a main hollow body 110 having an opening 111 and intended to contain one or more light modules not shown, such as in particular a lighting module ensuring the photometric functions of low beam (commonly referred to as the English term - Saxon "low beam”) and driving light (commonly referred to by the term Anglo- Saxon "high beam”), or even a signaling module of the lantern and/or flashing type.
- a lighting module ensuring the photometric functions of low beam
- driving light commonly referred to by the term Anglo- Saxon "high beam”
- signaling module of the lantern and/or flashing type such as in particular a lighting module ensuring the photometric functions of low beam (commonly referred to as the English term - Saxon "low beam”) and driving light (commonly referred to by the term Anglo- Saxon "high beam”), or even a signaling module of the lantern and/or flashing type.
- This hollow main body 110 is intended to be closed by an outer glass of transparent cover, not shown, and intended to be attached fixedly to the peripheral periphery of its opening 111 by laser welding so as to ensure a perfect seal.
- the housing 100 also has three anchoring lugs 120, 130 projecting outside the main body 110 and allowing the mounting of the projector on the vehicle body structure.
- this box 100 includes:
- the rear anchoring lug 120 is provided with a hole 121 intended to allow its fixing by screwing on the upper portion 211 substantially horizontal of the peripheral rim 210 of the support 200 of the corresponding side wing (not shown) of the vehicle structure and via a screw associated with a spacer washer as is well known in the prior art.
- This rear anchor lug 120 also has anti-translation indexing means by interlocking along a vertical axis, consisting in this case of a cross-section pin 122 (visible in Figure 3) extending vertically from its underside and provided to cooperate by interlocking with an orifice (not visible) made in the upper portion 211 of the peripheral rim 210 of the support 200.
- the rear anchoring lug 120 is connected to the main body 110 of the housing 100 by a linear zone of frangible weakening 123 oriented transversely and intended to be positioned directly above the front portion 212 of the rim peripheral 210 of the support 200 (see figure 3), this linear zone of frangible weakening 123 being configured to break upon the occurrence of a frontal impact so as to cause the separation of this leg 120 from the main body 110.
- the rear anchoring lug 120 also comprises a circular zone of frangible weakening 124, delimited by four slots 125 in an arc of a circle and configured to break under a predetermined vertical bearing stress. exerted by an abutment of the front bonnet of the vehicle in the event of an impact between a pedestrian and the front of the vehicle, so as to allow the depression of this bonnet and the absorption of part of the energy of this impact.
- This rear anchor lug 120 is further provided over at least most of its surface with a network of honeycomb stiffening ribs 126 intended to increase its mechanical rigidity.
- the rear face of the main body 110 of the housing 100 has a guide ramp 112 extending from and below the frangible weakening linear zone 123 by inclining forwards and the bottom (see figures 3 and 4).
- this ramp 112 is arranged so that, upon the occurrence of a frontal impact causing the main body 110 of the housing 100 to recoil and the linear weakening zone to break frangible 123, come into contact with the front end of the rear anchoring lug 120 and cooperate by sliding with this front end in order to cause the main body 110 to pivot upwards.
- the latter advantageously comprises a first upper portion 112A forming a first angle of inclination 01 with the vertical as well as a second lower portion 112B extending this upper portion 12A downwards and forming a second angle of inclination 02 with the vertical , greater than the angle ⁇ 1 (see figure 4).
- the angle of inclination ⁇ 1 of the upper portion 112A of the ramp 112 will thus advantageously be less than 30° and preferably between 20 and 25°, while that ⁇ 2 of the lower portion 112B of this ramp 112 will be advantageously greater than 45° and preferably between 55° and 60°.
- the upper portion 112A thus comes to be found almost vertically when the front end of the rear anchoring lug 120 reaches the junction edge between the two portions 112A, 112B of this ramp 112 so that its effect is then almost nil.
- the lower portion 112B keeps a certain inclination vis-à-vis the vertical so that it will allow the continuation of the upward pivoting of the body 110 and the reduction of the intensity of the recoil force exerted by the latter on this rear anchoring lug 120 and on the support 200.
- the ramp 112 advantageously extends over a total height h (see FIG. 4) of at least 50 millimeters and preferably between 60 and 80 millimeters.
- the housing 100 is advantageously made of a plastic material loaded with talc, such as PPTD40 (polypropylene having 40% talc filler).
- talc such as PPTD40 (polypropylene having 40% talc filler).
- an anti-friction coating such as, for example, Molykote® to the guide ramp.
- the guide ramp may have a uniform inclination over its entire height.
- the guide ramp can be offset laterally vis-à-vis the rear anchoring lug by being arranged to come into contact with the front end of the support 200.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to a headlamp housing (100) comprising a hollow main body (110) as well as a rear anchoring lug projecting at the rear of said body and intended to be attached to a front side wing support (200), said rear anchoring lug being connected to said body by a frangible zone (123) configured to break upon the occurrence of a frontal impact so as to cause this rear anchoring lug to detach from said body; the rear face of said body having a guide ramp (112) tilting forwards and downwards and arranged so that, when such a frontal impact occurs to cause said body to recoil and said frangible zone to break, it comes into contact with the front end of said rear anchoring lug or said front side wing support and engages by sliding with said front end in order to pivot said body upwards.
Description
Description Description
Titre de l'invention : Boîtier de projecteur pour véhicule automobile pourvu d’une rampe de guidage Title of the invention: Headlight housing for a motor vehicle provided with a guide ramp
[Domaine technique] [Technical area]
[1] La présente invention revendique la priorité de la demande française 2200165 déposée le 11 janvier 2022, dont le contenu (texte, dessins et revendications) est ici incorporé par référence. [1] The present invention claims the priority of French application 2200165 filed on January 11, 2022, the content of which (text, drawings and claims) is incorporated herein by reference.
[2] La présente invention concerne d’une manière générale le domaine des projecteurs pour véhicules automobiles. Elle se rapporte plus particulièrement à un boîtier d’un tel projecteur. [2] The present invention generally relates to the field of headlamps for motor vehicles. It relates more particularly to a casing of such a projector.
[Technique antérieure] [prior technique]
[3] Un véhicule automobile comprend de manière connue des blocs optiques montés à l'avant dudit véhicule et désignés couramment sous le terme projecteurs. Ces derniers permettent, d'une part, d'éclairer l'environnement du véhicule pour améliorer la visibilité du conducteur, notamment en condition nocturne, et, d'autre part, de signaliser la position du véhicule aux autres usagers de la route. [3] A motor vehicle comprises, in known manner, optical units mounted at the front of said vehicle and commonly referred to as headlamps. These make it possible, on the one hand, to illuminate the environment of the vehicle to improve the visibility of the driver, in particular in night conditions, and, on the other hand, to signal the position of the vehicle to other road users.
[4] Un projecteur comporte classiquement un boîtier comprenant un corps principal creux recevant au moins un module lumineux et étant refermé par une glace extérieure de couverture. [4] A projector conventionally comprises a housing comprising a hollow main body receiving at least one light module and being closed by an outer cover glass.
[5] Le montage d’un tel projecteur sur la structure de caisse du véhicule est généralement assuré par l’intermédiaire d’une ou plusieurs pattes d’ancrage ménagées sur le boîtier. [5] The mounting of such a headlamp on the body structure of the vehicle is generally ensured by means of one or more anchoring lugs provided on the housing.
[6] Ce boîtier comprend ainsi classiquement une patte d’ancrage arrière saillant à l’arrière de son corps principal creux et destinée à être fixée par vissage à un support d’aile latérale avant du véhicule. [6] This box thus conventionally comprises a rear anchoring lug protruding from the rear of its hollow main body and intended to be fixed by screwing to a support on the front side wing of the vehicle.
[7] Dans le cadre de la sécurité passive qui a trait à l'ensemble des moyens et des actions mises en œuvre pour diminuer les conséquences d'un accident, la face avant des véhicules doit satisfaire à une réglementation très stricte en cas de chocs frontaux visant à assurer la protection des occupants du véhicule
tout en limitant l'agressivité de ce véhicule vis-à-vis des autres usagers de la route et notamment des piétons. [7] In the context of passive safety, which relates to all the means and actions implemented to reduce the consequences of an accident, the front of vehicles must comply with very strict regulations in the event of impact fronts designed to ensure the protection of the occupants of the vehicle while limiting the aggressiveness of this vehicle vis-à-vis other road users and in particular pedestrians.
[8] Ainsi et afin de minimiser les risques de blessures graves au niveau des jambes en cas de choc frontal impliquant un piéton, il est connu notamment du document EP 3 508 377 A1 que ladite patte d’ancrage arrière soit reliée audit corps principal creux du boîtier du projecteur par une zone d’affaiblissement frangible configurée pour rompre lors de la survenance d’un choc frontal de sorte à provoquer la désolidarisation de cette patte d’ancrage arrière dudit corps principal et à permettre l’enfoncement du projecteur vers l’arrière en direction du compartiment moteur du véhicule. [8] Thus, and in order to minimize the risk of serious injury to the legs in the event of a frontal impact involving a pedestrian, it is known in particular from document EP 3 508 377 A1 that said rear anchoring lug is connected to said hollow main body of the headlamp housing by a frangible zone of weakening configured to break upon the occurrence of a frontal impact so as to cause the separation of this rear anchoring lug from said main body and to allow the driving of the headlamp towards the back towards the engine compartment of the vehicle.
[9] Par ailleurs, les constructeurs automobiles doivent également tenir compte d’autres préoccupations telles que les exigences de style et la maîtrise des coûts de réparation du véhicule lors de chocs à faible vitesse. [9] In addition, car manufacturers must also take into account other concerns such as styling requirements and controlling vehicle repair costs during low-speed impacts.
[10] Ainsi, parmi les nombreux protocoles de choc que subissent les différentes modèles de véhicules automobiles avant leur commercialisation, l’un d’entre eux désigné sous l’appellation « choc réparabilité » consiste à estimer le coût des réparations sur le véhicule testé, lorsque ce dernier percute frontalement, par son côté avant gauche et à une vitesse de 16 km/h, un mur rigide incliné selon un angle de 10° par rapport à un plan transversal à l’axe de ce véhicule avec 40 % de recouvrement. [10] Thus, among the many shock protocols that the various models of motor vehicles undergo before they are marketed, one of them referred to as "repairability shock" consists of estimating the cost of repairs on the vehicle tested. , when the latter strikes frontally, on its front left side and at a speed of 16 km/h, a rigid wall inclined at an angle of 10° with respect to a plane transverse to the axis of this vehicle with 40% overlap .
[11] La réalisation d’un tel choc réparabilité permet ainsi aux sociétés d'assurance de répertorier les différents modèles de véhicule testés dans différentes classes en fonction du coût des réparations, et d’adapter leurs tarifs en conséquence. [11] Performing such a repairability shock thus enables insurance companies to list the different vehicle models tested in different classes according to the cost of repairs, and to adapt their rates accordingly.
[12] Afin de réduire le risque de casse du projecteur et donc le coût des réparations, la patte d’ancrage arrière du boîtier est généralement configurée de sorte à se rompre également lors de ce choc réparabilité. [12] In order to reduce the risk of breakage of the headlamp and therefore the cost of repairs, the rear anchoring bracket of the housing is generally configured so as to also break during this repairability impact.
[13] Ainsi, plutôt que d’avoir à changer l’intégralité du projecteur, la réparation se limite à l’installation d’une patte d’ancrage de substitution que l’on vient rapporter par vissage sur le boîtier.
[14] En se déplaçant longitudinalement vers l’arrière lors de ce choc réparabilité, il est courant que le corps principal creux du boîtier vienne buter contre l’extrémité avant du support de l’aile latérale qui se déforme et recule également. [13] Thus, rather than having to change the entire projector, the repair is limited to the installation of a replacement anchor bracket that is screwed onto the housing. [14] As it moves longitudinally rearward during this repairability impact, it is common for the hollow main body of the housing to abut against the forward end of the side wing support which also deforms and recoils.
[15] Lorsque ce recul du support d’aile latérale est trop important, ce dernier peut malheureusement venir impacter la porte latérale avant correspondante du véhicule qui doit alors être également remplacée. [15] When this setback of the side wing support is too great, it can unfortunately impact the corresponding front side door of the vehicle, which must then also be replaced.
[16] Le coût total des réparations s’avère alors nettement plus élevé ce qui entraîne une augmentation de la classe d’assurance du véhicule. [16] The total cost of the repairs then turns out to be significantly higher, which leads to an increase in the insurance class of the vehicle.
[Exposé de l’invention] [Disclosure of Invention]
[17] La présente invention vise donc à éviter la détérioration de la porte latérale avant lors d’un choc réparabilité, de sorte à limiter les coûts de réparation d’un tel choc et à obtenir un meilleur classement du véhicule auprès des assurances. [17] The present invention therefore aims to prevent the deterioration of the front side door during a reparability shock, so as to limit the costs of repairing such a shock and to obtain a better classification of the vehicle with the insurance companies.
[18] Elle propose à cet effet un boîtier de projecteur pour véhicule automobile comportant un corps principal creux apte à recevoir au moins un module lumineux et destiné à être refermé par une glace extérieure de couverture, ainsi qu’une patte d’ancrage arrière saillant à l’arrière dudit corps et destinée à être fixée par vissage à un support d’aile latérale avant dudit véhicule, ladite patte d’ancrage arrière étant reliée audit corps principal par une zone d’affaiblissement frangible configurée pour rompre lors de la survenance d’un choc frontal de sorte à provoquer la désolidarisation de cette patte d’ancrage arrière dudit corps principal ; caractérisé en ce que la face arrière dudit corps principal présente une rampe de guidage s’inclinant vers l’avant et vers le bas et agencée de sorte à, lors de la survenance d’un dit choc frontal provoquant le recul dudit corps principal et la rupture de ladite zone frangible, venir au contact de l’extrémité avant de ladite patte d’ancrage arrière ou dudit support d’aile latérale avant et à coopérer par glissement avec ladite extrémité avant afin d’entraîner le pivotement vers le haut dudit corps principal. [18] To this end, it proposes a headlamp housing for a motor vehicle comprising a hollow main body capable of receiving at least one light module and intended to be closed by an outer cover glass, as well as a projecting rear anchoring lug at the rear of said body and intended to be fixed by screwing to a front side wing support of said vehicle, said rear anchoring lug being connected to said main body by a frangible weakening zone configured to break on the occurrence of a frontal impact so as to cause the separation of this rear anchoring lug from said main body; characterized in that the rear face of said main body has a guide ramp sloping forwards and downwards and arranged so as to, upon the occurrence of a said frontal impact causing the recoil of said main body and the rupture of said frangible zone, to come into contact with the front end of said rear anchor bracket or of said front side wing support and to cooperate by sliding with said front end in order to cause said main body to pivot upwards .
[19] En entraînant ce pivotement vers le haut du corps principal du boîtier, la rampe de guidage du boîtier selon l’invention permet de réduire très nettement l’intensité de l’effort de recul exercé par ce corps principal sur la patte d’ancrage arrière et sur le support d’aile latérale avant dont elle demeure solidaire, ce qui
limite le recul de ce support d’aille et évite que ce dernier ne vienne impacter la porte latérale avant correspondante du véhicule. [19] By driving this upward pivoting of the main body of the housing, the guide ramp of the housing according to the invention makes it possible to very significantly reduce the intensity of the recoil force exerted by this main body on the tab rear anchorage and on the front side wing support to which it remains attached, which limits the recoil of this fender support and prevents it from impacting the corresponding front side door of the vehicle.
[20] L’invention permet ainsi de limiter les coûts de réparation d’un choc réparabilité et d’obtenir un meilleur classement du véhicule auprès des assurances. [20] The invention thus makes it possible to limit the repair costs of a reparability shock and to obtain a better classification of the vehicle with the insurance companies.
[21] Selon des caractéristiques préférées dudit boîtier de projecteur selon l’invention : [21] According to preferred characteristics of said projector housing according to the invention:
- ladite zone frangible s’étend suivant une ligne orientée transversalement et ladite rampe de guidage s’étend depuis et en dessous de ladite zone frangible ;- said frangible zone extends along a line oriented transversely and said guide ramp extends from and below said frangible zone;
- ladite rampe de guidage comprend une première portion supérieure formant un premier angle d’inclinaison avec la verticale ainsi qu’une seconde portion inférieure prolongeant vers le bas ladite première portion et formant un second angle d’inclinaison avec la verticale, supérieur audit premier angle d’inclinaison ;- said guide ramp comprises a first upper portion forming a first angle of inclination with the vertical as well as a second lower portion extending said first portion downwards and forming a second angle of inclination with the vertical, greater than said first angle tilt;
- ledit premier angle d’inclinaison est inférieur à 30° ; - said first angle of inclination is less than 30°;
- ledit second angle d’inclinaison est supérieur à 45° ; - said second angle of inclination is greater than 45°;
- ladite rampe de guidage s’étend sur une hauteur totale d’au moins 50 millimètres ; - said guide ramp extends over a total height of at least 50 millimetres;
- ledit boîtier est réalisé dans une matière plastique chargée en talc ; et/ou- Said housing is made of a plastic material filled with talc; and or
- un revêtement anti-friction est appliqué sur ladite rampe de guidage. - An anti-friction coating is applied to said guide ramp.
[22] L’invention vise également sous un second aspect un projecteur pour véhicule automobile comportant un tel boîtier comprenant un corps principal creux, au moins un module lumineux logé dans ledit corps, et une glace extérieure de couverture refermant ledit corps. [22] The invention also relates, in a second aspect, to a headlamp for a motor vehicle comprising such a housing comprising a hollow main body, at least one light module housed in said body, and an outer cover glass closing said body.
[23] L’invention vise enfin sous un troisième aspect un véhicule automobile comportant un tel projecteur. [23] Finally, the invention relates in a third aspect to a motor vehicle comprising such a headlight.
[Brève description des dessins] [Brief description of drawings]
[24] L’exposé de l’invention sera maintenant poursuivi par la description détaillée d’un exemple de réalisation, donnée ci-après à titre illustratif mais non limitatif, en référence aux dessins annexés, sur lesquels : [24] The description of the invention will now be continued with the detailed description of an embodiment, given below by way of illustration but not limitation, with reference to the appended drawings, in which:
[25] [Fig 1] représente une vue en perspective de trois quart arrière d’un boîtier de projecteur de véhicule automobile selon l’invention ;
[26] [Fig 2] est une vue en perspective de dessus de la zone de fixation de la patte d’ancrage arrière du boîtier de projecteur de la figure 1 sur un support d’ail le latérale de véhicule ; [25] [Fig 1] shows a rear three-quarter perspective view of a motor vehicle headlight housing according to the invention; [26] [Fig 2] is a perspective view from above of the fixing zone of the rear anchoring lug of the headlight housing of FIG. 1 on a support on the side of the vehicle;
[27] [Fig 3] représente une vue en perspective sous un autre angle de la zone de fixation de la patte d’ancrage arrière du boîtier de projecteur de la figure 1 sur un support d’aille latérale de véhicule ; [27] [Fig 3] shows a perspective view from another angle of the fixing area of the rear anchoring lug of the headlight housing of Figure 1 on a vehicle side fender support;
[28] [Fig 4] est une vue de section de la partie supérieure du boîtier de projecteur de la figure 1 , prise suivant un plan transversal vertical traversant la patte d’ancrage arrière ; et [28] [Fig 4] is a sectional view of the upper part of the headlight housing of Figure 1, taken along a vertical transverse plane crossing the rear anchoring bracket; And
[29] [Fig 5] et [Fig 6] sont des vues illustrant des étapes successives de la cinématique de déplacement du boîtier de projecteur de la figure 1 lors de la réalisation d’un essai de choc réparabilité. [29] [Fig 5] and [Fig 6] are views illustrating successive steps of the movement kinematics of the headlight housing of Figure 1 during the performance of a repairability impact test.
[Description détaillée] [Detailed description]
[30] La figure 1 représente un boîtier 100 de projecteur de véhicule automobile selon l’invention, destiné à être monté sur la structure de caisse de ce véhicule en s’intégrant aux contours des pièces de carrosserie adjacentes et à ceux du pare-choc. [30] Figure 1 shows a motor vehicle headlight housing 100 according to the invention, intended to be mounted on the body structure of this vehicle by integrating with the contours of the adjacent bodywork parts and those of the bumper .
[31] Dans la description qui va suivre et par convention, les termes « avant »,[31] In the following description and by convention, the terms "before",
« arrière », « inférieur », « supérieur », « longitudinal » et « transversal » seront définis par rapport à la position de montage de ce projecteur sur le véhicule. "rear", "lower", "upper", "longitudinal" and "transverse" will be defined in relation to the mounting position of this headlamp on the vehicle.
[32] Les termes « externe » et « interne » seront quant à eux utilisés pour définir la position relative d'un élément par référence à l'axe longitudinal du véhicule. L’élément le plus proche de cet axe sera ainsi qualifié d’interne par opposition à l’autre élément plus éloigné de ce même axe qui sera quant à lui qualifié d’externe. [32] The terms “external” and “internal” will be used to define the relative position of an element with reference to the longitudinal axis of the vehicle. The element closest to this axis will thus be qualified as internal as opposed to the other element further from this same axis which will be qualified as external.
[33] Le boîtier 100 comporte un corps creux principal 110 présentant une ouverture 111 et destiné à renfermer un ou plusieurs modules lumineux non représentés, tel que notamment un module d'éclairage assurant les fonctions photométriques feu de croisement (couramment désigné sous le terme anglo- saxon « low beam ») et feu de route (couramment désigné sous le terme anglo-
saxon « high beam »), ou encore un module de signalisation du type lanterne et/ou clignotant. [33] The housing 100 comprises a main hollow body 110 having an opening 111 and intended to contain one or more light modules not shown, such as in particular a lighting module ensuring the photometric functions of low beam (commonly referred to as the English term - Saxon "low beam") and driving light (commonly referred to by the term Anglo- Saxon "high beam"), or even a signaling module of the lantern and/or flashing type.
[34] Ce corps principal creux 110 est prévu pour être refermé par une glace extérieure de couverture transparente non représentée, et destinée à être rapportée fixement sur le pourtour périphérique de son ouverture 111 par soudure laser de sorte à assurer une parfaite étanchéité. [34] This hollow main body 110 is intended to be closed by an outer glass of transparent cover, not shown, and intended to be attached fixedly to the peripheral periphery of its opening 111 by laser welding so as to ensure a perfect seal.
[35] Le boîtier 100 comporte également trois pattes d’ancrage 120, 130 saillant à l’extérieur du corps principal 110 et permettant le montage du projecteur sur la structure de caisse du véhicule. [35] The housing 100 also has three anchoring lugs 120, 130 projecting outside the main body 110 and allowing the mounting of the projector on the vehicle body structure.
[36] En l’espèce, ce boîtier 100 comprend : [36] In this case, this box 100 includes:
- une patte d’ancrage arrière 120 saillant selon un plan moyen horizontal à l’arrière du corps principal creux 110 et suivant une direction sensiblement longitudinale ; - a rear anchoring lug 120 projecting along a horizontal mean plane at the rear of the hollow main body 110 and in a substantially longitudinal direction;
- une patte d’ancrage inférieure 130 saillant en dessous du corps principal 110 ; et - A lower anchor lug 130 projecting below the main body 110; And
- une patte d’ancrage avant non visible sur les figures saillant latéralement du côté interne de ce corps principal 110. - a front anchoring lug not visible in the figures projecting laterally from the internal side of this main body 110.
[37] Représentée de manière agrandie sur les figures 2 et 3, la patte d’ancrage arrière 120 est pourvue d’un perçage 121 destiné à permettre sa fixation par vissage sur la portion supérieure 211 sensiblement horizontale du rebord périphérique 210 du support 200 de l’aile latérale correspondante (non représentée) de la structure du véhicule et par l’intermédiaire d’une vis associée à d’une rondelle d’entretoise comme cela est bien connu de l’art antérieur. [37] Shown in an enlarged manner in Figures 2 and 3, the rear anchoring lug 120 is provided with a hole 121 intended to allow its fixing by screwing on the upper portion 211 substantially horizontal of the peripheral rim 210 of the support 200 of the corresponding side wing (not shown) of the vehicle structure and via a screw associated with a spacer washer as is well known in the prior art.
[38] Cette patte d’ancrage arrière 120 présente également des moyens d’indexage anti-translation par emboitement selon un axe vertical, constitués en l’espèce par un pion à section en croix 122 (visible sur la figure 3) s’étendant verticalement depuis sa face inférieure et prévu pour coopérer par emboitement avec un orifice (non visible) ménagé dans la portion supérieure 211 du rebord périphérique 210 du support 200. [38] This rear anchor lug 120 also has anti-translation indexing means by interlocking along a vertical axis, consisting in this case of a cross-section pin 122 (visible in Figure 3) extending vertically from its underside and provided to cooperate by interlocking with an orifice (not visible) made in the upper portion 211 of the peripheral rim 210 of the support 200.
[39] La patte d’ancrage arrière 120 est reliée au corps principal 110 du boîtier 100 par une zone linéaire d’affaiblissement frangible 123 orientée transversalement et destinée à venir se positionner à l’aplomb de la portion avant 212 du rebord
périphérique 210 du support 200 (voir figure 3), cette zone linéaire d’affaiblissement frangible 123 étant configurée pour rompre lors de la survenance d’un choc frontal de sorte à provoquer la désolidarisation de cette patte 120 du corps principal 110. [39] The rear anchoring lug 120 is connected to the main body 110 of the housing 100 by a linear zone of frangible weakening 123 oriented transversely and intended to be positioned directly above the front portion 212 of the rim peripheral 210 of the support 200 (see figure 3), this linear zone of frangible weakening 123 being configured to break upon the occurrence of a frontal impact so as to cause the separation of this leg 120 from the main body 110.
[40] A proximité de son extrémité arrière, la patte d’ancrage arrière 120 comprend par ailleurs une zone circulaire d’affaiblissement frangible 124, délimitée par quatre lumières 125 en arc de cercle et configurée pour rompre sous une contrainte verticale d’appui prédéterminée exercée par une butée du capot avant du véhicule en cas de choc entre un piéton et l’avant du véhicule, de sorte à permettre l’enfoncement de ce capot et l’absorption d’une partie de l’énergie de ce choc. [40] Near its rear end, the rear anchoring lug 120 also comprises a circular zone of frangible weakening 124, delimited by four slots 125 in an arc of a circle and configured to break under a predetermined vertical bearing stress. exerted by an abutment of the front bonnet of the vehicle in the event of an impact between a pedestrian and the front of the vehicle, so as to allow the depression of this bonnet and the absorption of part of the energy of this impact.
[41] La face supérieure de cette patte d’ancrage arrière 120 est en outre pourvue sur au moins la majeure partie de sa surface d’un réseau de nervures de rigidification en nid d’abeilles 126 destinées à augmenter sa rigidité mécanique. [41] The upper face of this rear anchor lug 120 is further provided over at least most of its surface with a network of honeycomb stiffening ribs 126 intended to increase its mechanical rigidity.
[42] Selon l’invention, la face arrière du corps principal 110 du boîtier 100 présente une rampe de guidage 112 s’étendant depuis et en dessous de la zone linéaire d’affaiblissement frangible 123 en s’inclinant vers l’avant et vers le bas (voir figures 3 et 4). [42] According to the invention, the rear face of the main body 110 of the housing 100 has a guide ramp 112 extending from and below the frangible weakening linear zone 123 by inclining forwards and the bottom (see figures 3 and 4).
[43] Tel qu’illustré par la figure 5, cette rampe 112 est agencée de sorte à, lors de la survenance d’un choc frontal provoquant le recul du corps principal 110 du boîtier 100 et la rupture de la zone linéaire d’affaiblissement frangible 123, venir au contact de l’extrémité avant de la patte d’ancrage arrière 120 et à coopérer par glissement avec cette extrémité avant afin d’entraîner le pivotement vers le haut du corps principal 110. [43] As illustrated in Figure 5, this ramp 112 is arranged so that, upon the occurrence of a frontal impact causing the main body 110 of the housing 100 to recoil and the linear weakening zone to break frangible 123, come into contact with the front end of the rear anchoring lug 120 and cooperate by sliding with this front end in order to cause the main body 110 to pivot upwards.
[44] Ce mouvement de pivotement du corps principal 110 du boîtier 100 permet de réduire très nettement l’intensité de l’effort de recul exercé par ce corps principal[44] This pivoting movement of the main body 110 of the housing 100 makes it possible to very significantly reduce the intensity of the recoil force exerted by this main body
110 sur la patte d’ancrage arrière 120 et sur le support d’aile latérale avant 200 dont elle demeure solidaire, ce qui limite le recul de ce support d’aille 200 et évite que ce dernier ne vienne impacter la porte latérale avant correspondante du véhicule. 110 on the rear anchor bracket 120 and on the front side wing support 200 with which it remains attached, which limits the recoil of this wing support 200 and prevents the latter from impacting the corresponding front side door of the vehicle.
[45] Afin de limiter la réduction du volume intérieur de la partie supérieure du corps principal creux 110 provoqué par la présence de cette rampe de guidage
112, cette dernière comprend avantageusement une première portion supérieure 112A formant un premier angle d’inclinaison 01 avec la verticale ainsi qu’une seconde portion inférieure 112B prolongeant cette portion supérieurel 12A vers le bas et formant un second angle d’inclinaison 02 avec la verticale, supérieur à l’angle 01 (voir figure 4). [45] In order to limit the reduction in the interior volume of the upper part of the hollow main body 110 caused by the presence of this guide ramp 112, the latter advantageously comprises a first upper portion 112A forming a first angle of inclination 01 with the vertical as well as a second lower portion 112B extending this upper portion 12A downwards and forming a second angle of inclination 02 with the vertical , greater than the angle θ1 (see figure 4).
[46] L’angle d’inclinaison 01 de la portion supérieure 112A de la rampe 112 sera ainsi avantageusement inférieur à 30° et compris de préférence entre 20 et 25°, tandis que celui 02 de la portion inférieure 112B de cette rampe 112 sera avantageusement supérieur à 45° et compris de préférence entre 55° et 60°. [46] The angle of inclination θ1 of the upper portion 112A of the ramp 112 will thus advantageously be less than 30° and preferably between 20 and 25°, while that θ2 of the lower portion 112B of this ramp 112 will be advantageously greater than 45° and preferably between 55° and 60°.
[47] Cette inclinaison plus prononcée de la portion inférieure 112B de la rampe 112 s’explique par le fait que le pivotement vers le haut du corps principal creux 110 lors de son recul dû au choc entraîne une diminution progressive de l’inclinaison des deux portions 112A, 112B de cette rampe 112 et donc de la réduction de l’effort de recul exercé par le corps 110 sur la patte d’ancrage arrière 120 et sur le support 200. [47] This more pronounced inclination of the lower portion 112B of the ramp 112 is explained by the fact that the upward pivoting of the hollow main body 110 during its recoil due to the impact causes a gradual decrease in the inclination of the two portions 112A, 112B of this ramp 112 and therefore the reduction of the recoil force exerted by the body 110 on the rear anchoring lug 120 and on the support 200.
[48] Tel qu’illustré par la figure 6, la portion supérieure 112A vient ainsi se retrouver quasiment à la verticale lorsque l’extrémité avant de la patte d’ancrage arrière 120 atteint l’arête de jonction entre les deux portions 112A, 112B de cette rampe 112 de sorte que son effet est alors quasiment nul. [48] As illustrated in Figure 6, the upper portion 112A thus comes to be found almost vertically when the front end of the rear anchoring lug 120 reaches the junction edge between the two portions 112A, 112B of this ramp 112 so that its effect is then almost nil.
[49] On remarquera que la portion inférieure 112B garde quant à elle une certaine inclinaison vis-à-vis de la verticale de sorte qu’elle va permettre la poursuite du pivotement vers le haut du corps 110 et la réduction de l’intensité de l’effort de recul exercé par ce dernier sur cette patte d’ancrage arrière 120 et sur le support 200. [49] It will be noted that the lower portion 112B keeps a certain inclination vis-à-vis the vertical so that it will allow the continuation of the upward pivoting of the body 110 and the reduction of the intensity of the recoil force exerted by the latter on this rear anchoring lug 120 and on the support 200.
[50] Afin d’obtenir un guidage efficace permettant de limiter au maximum le recul du support 200 de l’aile latérale correspondante, la rampe 112 s’étend avantageusement sur une hauteur totale h (voir figure 4) d’au moins 50 millimètres et de préférence comprise entre 60 et 80 millimètres. [50] In order to obtain effective guidance making it possible to limit the decline of the support 200 of the corresponding side wing as much as possible, the ramp 112 advantageously extends over a total height h (see FIG. 4) of at least 50 millimeters and preferably between 60 and 80 millimeters.
[51 ] Enfin et de sorte à faciliter le glissement de la rampe 112 sur l’extrémité avant de la patte d’ancrage arrière 120, le boîtier 100 est avantageusement réalisé dans une matière plastique chargée en talc, telle que le PPTD40 (polypropylène présentant un taux de charge à 40% de talc).
[52] Selon des variantes de réalisation non représentées, on peut également envisager d’appliquer sur la rampe de guidage un revêtement anti-friction tel que par exemple le Molykote®. [51] Finally and so as to facilitate the sliding of the ramp 112 on the front end of the rear anchoring lug 120, the housing 100 is advantageously made of a plastic material loaded with talc, such as PPTD40 (polypropylene having 40% talc filler). [52] According to variant embodiments not shown, it is also possible to consider applying an anti-friction coating such as, for example, Molykote® to the guide ramp.
[53] Selon d’autres variantes de réalisation non représentées, la rampe de guidage peut présenter une inclinaison uniforme sur l’ensemble de sa hauteur. [53] According to other embodiments not shown, the guide ramp may have a uniform inclination over its entire height.
[54] Selon encore d’autres variantes de réalisation non représentées, la rampe de guidage peut être décalée latéralement vis-à-vis de la patte d’ancrage arrière en étant agencée pour venir au contact de l’extrémité avant du support 200.
[54] According to still other embodiments not shown, the guide ramp can be offset laterally vis-à-vis the rear anchoring lug by being arranged to come into contact with the front end of the support 200.
Claims
[Revendication 1 ] Boîtier (100) de projecteur pour véhicule automobile comportant un corps principal creux (110) apte à recevoir au moins un module lumineux et destiné à être refermé par une glace extérieure de couverture, ainsi qu’une patte d’ancrage arrière (120) saillant à l’arrière dudit corps (110) et destinée à être fixée par vissage à un support d’aile latérale avant (200) dudit véhicule, ladite patte d’ancrage arrière (120) étant reliée audit corps principal (110) par une zone d’affaiblissement frangible (123) configurée pour rompre lors de la survenance d’un choc frontal de sorte à provoquer la désolidarisation de cette patte d’ancrage arrière (120) dudit corps principal (110) ; caractérisé en ce que la face arrière dudit corps principal (110) présente une rampe de guidage (112) s’inclinant vers l’avant et vers le bas et agencée de sorte à, lors de la survenance d’un dit choc frontal provoquant le recul dudit corps principal (110) et la rupture de ladite zone frangible (123), venir au contact de l’extrémité avant de ladite patte d’ancrage arrière (120) ou dudit support d’aile latérale avant (200) et à coopérer par glissement avec ladite extrémité avant afin d’entraîner le pivotement vers le haut dudit corps principal (110). [Claim 1] Headlight housing (100) for a motor vehicle comprising a hollow main body (110) capable of receiving at least one light module and intended to be closed by an outer cover glass, as well as a rear anchoring lug (120) projecting at the rear of said body (110) and intended to be fixed by screwing to a front side wing support (200) of said vehicle, said rear anchoring lug (120) being connected to said main body (110 ) by a frangible weakening zone (123) configured to break upon the occurrence of a frontal impact so as to cause the separation of this rear anchoring lug (120) from said main body (110); characterized in that the rear face of said main body (110) has a guide ramp (112) sloping forwards and downwards and arranged so as to, upon the occurrence of a said frontal impact causing the recoil of said main body (110) and rupture of said frangible zone (123), coming into contact with the front end of said rear anchoring lug (120) or of said front side wing support (200) and cooperating by sliding with said forward end to cause said main body (110) to pivot upward.
[Revendication 2] Boîtier (100) de projecteur selon la revendication 1 , caractérisé en ce que ladite zone frangible (123) s’étend suivant une ligne orientée transversalement, et en ce que ladite rampe de guidage (112) s’étend depuis et en dessous de ladite zone frangible (123). [Claim 2] Projector housing (100) according to Claim 1, characterized in that the said frangible zone (123) extends along a line oriented transversely, and in that the said guide ramp (112) extends from and below said frangible zone (123).
[Revendication 3] Boîtier (100) de projecteur selon l’une des revendications 1 ou 2, caractérisé en ce que ladite rampe de guidage (112) comprend une première portion supérieure (112A) formant un premier angle d’inclinaison (0i) avec la verticale ainsi qu’une seconde portion inférieure (112B) prolongeant vers le bas ladite première portion (112A) et formant un second angle d’inclinaison (02) avec la verticale, supérieur audit premier angle d’inclinaison (0i). [Claim 3] Headlight housing (100) according to one of Claims 1 or 2, characterized in that the said guide ramp (112) comprises a first upper portion (112A) forming a first angle of inclination (0i) with the vertical as well as a second lower portion (112B) extending said first portion (112A) downwards and forming a second angle of inclination (θ2) with the vertical, greater than said first angle of inclination (θi).
[Revendication 4] Boîtier (100) de projecteur selon la revendication 3, caractérisé en ce que ledit premier angle d’inclinaison (0i) est inférieur à 30°.
[Claim 4] Projector housing (100) according to Claim 3, characterized in that the said first angle of inclination (θi) is less than 30°.
[Revendication 5] Boîtier (100) de projecteur selon l’une des revendications 3 ou 4, caractérisé en ce que ledit second angle d’inclinaison (62) est supérieur à 45°. [Claim 5] Projector housing (100) according to one of Claims 3 or 4, characterized in that the said second angle of inclination (62) is greater than 45°.
[Revendication 6] Boîtier (100) de projecteur selon l’une des revendications 1 à 5, caractérisé en ce que ladite rampe de guidage (112) s’étend sur une hauteur totale (h) d’au moins 50 millimètres. [Claim 6] Projector housing (100) according to one of Claims 1 to 5, characterized in that the said guide ramp (112) extends over a total height (h) of at least 50 millimeters.
[Revendication 7] Boîtier (100) de projecteur selon l’une des revendications 1 à 6, caractérisé en ce qu’il est réalisé dans une matière plastique chargée en talc. [Claim 7] Projector housing (100) according to one of Claims 1 to 6, characterized in that it is made of a plastic material loaded with talc.
[Revendication 8] Boîtier (100) de projecteur selon l’une des revendications 1 à 7, caractérisé en ce qu’un revêtement anti-friction est appliqué sur ladite rampe de guidage (112). [Claim 8] Headlamp housing (100) according to one of Claims 1 to 7, characterized in that an anti-friction coating is applied to the said guide ramp (112).
[Revendication 9] Projecteur pour véhicule automobile, comportant un boîtier (100) comprenant un corps principal creux (110), au moins un module lumineux logé dans ledit corps (110), et une glace extérieure de couverture refermant ledit corps (110) ; caractérisé en ce que ledit boîtier (110) est conforme à l’une des revendications 1 à 8. [Claim 9] Headlamp for a motor vehicle, comprising a housing (100) comprising a hollow main body (110), at least one light module housed in said body (110), and an outer cover glass closing said body (110); characterized in that said housing (110) conforms to one of claims 1 to 8.
[Revendication 10] Véhicule automobile caractérisé en ce qu’il comporte au moins un projecteur conforme à la revendication 9.
[Claim 10] Motor vehicle characterized in that it comprises at least one headlamp according to claim 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FRFR2200165 | 2022-01-11 | ||
| FR2200165A FR3131717B1 (en) | 2022-01-11 | 2022-01-11 | Headlight housing for a motor vehicle provided with a guide ramp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023135372A1 true WO2023135372A1 (en) | 2023-07-20 |
Family
ID=80786577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2022/052221 WO2023135372A1 (en) | 2022-01-11 | 2022-12-02 | Headlamp housing for motor vehicle, provided with a guide ramp |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR3131717B1 (en) |
| WO (1) | WO2023135372A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2200165A1 (en) | 1972-09-20 | 1974-04-19 | Allis Chalmers | |
| JP2004203288A (en) * | 2002-12-26 | 2004-07-22 | Calsonic Kansei Corp | Head lamp mounting structure for automobile |
| CN202225789U (en) * | 2011-09-01 | 2012-05-23 | 安徽江淮汽车股份有限公司 | Front combined lamp assembly of automobile |
| JP2013139237A (en) * | 2012-01-06 | 2013-07-18 | Fuji Heavy Ind Ltd | Head lamp mounting structure |
| EP3508377A1 (en) | 2018-01-05 | 2019-07-10 | PSA Automobiles SA | Housing for an optical unit and replacement attachment tab for repairing such an optical unit of a vehicle |
-
2022
- 2022-01-11 FR FR2200165A patent/FR3131717B1/en active Active
- 2022-12-02 WO PCT/FR2022/052221 patent/WO2023135372A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2200165A1 (en) | 1972-09-20 | 1974-04-19 | Allis Chalmers | |
| JP2004203288A (en) * | 2002-12-26 | 2004-07-22 | Calsonic Kansei Corp | Head lamp mounting structure for automobile |
| CN202225789U (en) * | 2011-09-01 | 2012-05-23 | 安徽江淮汽车股份有限公司 | Front combined lamp assembly of automobile |
| JP2013139237A (en) * | 2012-01-06 | 2013-07-18 | Fuji Heavy Ind Ltd | Head lamp mounting structure |
| EP3508377A1 (en) | 2018-01-05 | 2019-07-10 | PSA Automobiles SA | Housing for an optical unit and replacement attachment tab for repairing such an optical unit of a vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3131717A1 (en) | 2023-07-14 |
| FR3131717B1 (en) | 2023-11-24 |
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