FR3115891A1 - Display device incorporating protection in the event of impact - Google Patents
Display device incorporating protection in the event of impact Download PDFInfo
- Publication number
- FR3115891A1 FR3115891A1 FR2011142A FR2011142A FR3115891A1 FR 3115891 A1 FR3115891 A1 FR 3115891A1 FR 2011142 A FR2011142 A FR 2011142A FR 2011142 A FR2011142 A FR 2011142A FR 3115891 A1 FR3115891 A1 FR 3115891A1
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- Prior art keywords
- display device
- impact
- fixing
- dashboard
- zone
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- Pending
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- 208000031481 Pathologic Constriction Diseases 0.000 claims description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Instrument Panels (AREA)
Abstract
L’invention concerne un dispositif d’affichage (101) destiné à être solidarisé à une planche de bord (110) de véhicule comprenant un parebrise, ledit dispositif comportant des moyens de fixation (102) avec ladite planche de bord, caractérisé en ce qu’au moins un desdits moyens de fixation (102) comporte une zone fusible (103) apte à rompre en réponse à un choc sur le pare-brise lorsque ledit choc est d'une force supérieure à un seuil prédéterminé. Figure pour l’abrégé : Figure 1The invention relates to a display device (101) intended to be secured to a dashboard (110) of a vehicle comprising a windshield, said device comprising means for fixing (102) with said dashboard, characterized in that at least one of said fixing means (102) comprises a fusible zone (103) capable of breaking in response to an impact on the windshield when said impact is of a force greater than a predetermined threshold. Figure for abstract: Figure 1
Description
La présente invention concerne un dispositif d’affichage muni de protection en cas de choc, tel qu'un choc piéton, appliqué à proximité du parebrise d'un véhicule.The present invention relates to a display device provided with protection in the event of impact, such as a pedestrian impact, applied close to the windshield of a vehicle.
Arrière-plan technologiqueTechnology background
En cas de choc frontal d'un véhicule automobile avec un piéton, la tête du piéton peut heurter violemment le parebrise du véhicule et le choc résultant produit un enfoncement du parebrise jusqu'à un impact éventuel avec des éléments rigides situés sur la planche de bord du véhicule. Ces impacts contre les éléments rigides peuvent constituer la cause principale de blessures graves, voire même de décès des piétons renversés.In the event of a frontal impact of a motor vehicle with a pedestrian, the pedestrian's head may violently strike the windshield of the vehicle and the resulting impact causes the windshield to sink until it has a possible impact with rigid elements located on the dashboard. of the vehicle. These impacts against rigid elements can be the main cause of serious injury or even death of knocked down pedestrians.
On connait par le document FR2979999 un système de fixation d’un boitier de vision tête haute à une traverse de bord d'un véhicule automobile. Le système de fixation comprend des moyens de désengagement automatique du dit dispositif à la traverse de planche de bord lors d'un choc frontal par libération des dits moyens de solidarisation. Ce dispositif est destiné à protéger les occupants du véhicule lors d’un choc frontal. Cependant rien n’est prévu pour protéger un piéton lors d’un choc piéton.Document FR2979999 describes a system for attaching a head-up display unit to a cross member of a motor vehicle. The fastening system comprises means for automatically disengaging said device from the dashboard cross member during a frontal impact by releasing said securing means. This device is intended to protect the occupants of the vehicle in the event of a frontal impact. However, nothing is provided to protect a pedestrian in the event of a pedestrian impact.
Un objet de la présente invention est de proposer une solution pour protéger un piéton lors d’un choc de sa tête au niveau du parebrise.An object of the present invention is to provide a solution for protecting a pedestrian when his head hits the windshield.
A cet effet, l’invention a pour objet un dispositif d’affichage destiné à être solidarisé à une planche de bord de véhicule comprenant un parebrise, ledit dispositif comportant des moyens de fixation avec ladite planche de bord, caractérisé en ce qu’au moins un desdits moyens de fixation comporte une zone fusible apte à rompre en réponse à un choc sur le pare-brise lorsque ledit choc est d'une force supérieure à un seuil prédéterminé.To this end, the subject of the invention is a display device intended to be secured to a vehicle dashboard comprising a windshield, said device comprising means for fixing with said dashboard, characterized in that at least one of said fastening means comprises a fusible zone capable of breaking in response to an impact on the windshield when said impact is of a force greater than a predetermined threshold.
Lors d’un choc tête en bas de pare-brise, au-dessus de la planche de bord, la sphère tête, après rupture du pare-brise, viendra contacter la planche de bord, et plus particulièrement un module d’affichage (par exemple de type système de projection type VTH ou combiné tête haute). Afin de prolonger la course d’enfoncement de la sphère, sans qu’elle ne rencontre de point dur, les moyens de fixations (par exemple des pattes de fixation), supportant ce module, se cassent sous l’effort de l’impact, permettant au boîtier du module de s’échapper, et à la sphère de continuer sa translation.In the event of a head-down impact with the windscreen, above the dashboard, the head sphere, after breaking the windscreen, will come into contact with the dashboard, and more particularly a display module (for example of a projection system type VTH or head-up handset). In order to extend the sphere's driving stroke, without it encountering a hard point, the fixing means (for example fixing lugs), supporting this module, break under the force of the impact, allowing the module housing to escape, and the sphere to continue its translation.
Avantageusement, chaque moyen de fixation comporte une zone de fixation, la zone fusible comportant au moins une partie dont une épaisseur de matière est inférieure à une épaisseur de matière de la zone de fixation.Advantageously, each fixing means comprises a fixing zone, the fusible zone comprising at least one part of which a material thickness is less than a material thickness of the fixing zone.
En retirant, une épaisseur de matière, on obtient facilement une zone se cassant plus facilement lors d’un impact.By removing a thickness of material, we easily obtain an area that breaks more easily during an impact.
Avantageusement, la zone fusible comporte des nervures de rigidification, lesdites nervures de rigidification comprenant des lignes de rupture par striction.Advantageously, the fusible zone comprises stiffening ribs, said stiffening ribs comprising lines of rupture by constriction.
Ceci permet d’obtenir des moyens de fixation suffisamment rigides pour assurer la stabilité du dispositif tout en conservant une zone fusible au niveau des lignes de ruptures.This makes it possible to obtain fastening means that are sufficiently rigid to ensure the stability of the device while maintaining a fusible zone at the level of the rupture lines.
Avantageusement, le dispositif d’affichage selon l’invention comprend au moins deux moyens de fixation, chaque moyen de fixation comportant une patte de fixation percée d’un moins un trou débouchant.Advantageously, the display device according to the invention comprises at least two fixing means, each fixing means comprising a fixing lug pierced with at least one through hole.
Avantageusement, le dispositif d’affichage selon l’invention comprend au moins quatre moyens de fixation.Advantageously, the display device according to the invention comprises at least four fixing means.
Avantageusement, chaque patte de fixation est percée d’au moins deux trous débouchant.Advantageously, each fixing lug is pierced with at least two through holes.
Avantageusement, le dispositif d’affichage selon l’invention est de type vision tête haute.Advantageously, the display device according to the invention is of the head-up vision type.
L’invention concerne aussi un ensemble comprenant une planche de bord et un dispositif selon l’invention.The invention also relates to an assembly comprising a dashboard and a device according to the invention.
L’invention concerne aussi un véhicule comportant un ensemble comprenant une planche de bord et un dispositif selon l’invention.The invention also relates to a vehicle comprising an assembly comprising a dashboard and a device according to the invention.
Brève description des figuresBrief description of figures
D’autres caractéristiques et avantages de l’invention ressortiront de la description des modes de réalisation non limitatifs de l’invention ci-après, en référence aux figures annexées, sur lesquelles :Other characteristics and advantages of the invention will emerge from the description of the non-limiting embodiments of the invention below, with reference to the appended figures, in which:
En référence aux figures 1 et 2, l’invention a pour objet un dispositif d’affichage 101,201 destiné à être solidarisé à une planche de bord 110 de véhicule comprenant un parebrise.With reference to Figures 1 and 2, the invention relates to a display device 101,201 intended to be secured to a dashboard 110 of a vehicle comprising a windshield.
Selon une caractéristique de l’invention, le dispositif d’affichage est de type vision tête haute mais il pourrait s’agir d’un autre type de dispositif d’affichage, par exemple un écran numérique ou un combiné d’instruments.According to one characteristic of the invention, the display device is of the head-up vision type but it could be another type of display device, for example a digital screen or an instrument cluster.
Le dispositif 101, 201 comporte un boitier, comprenant le moyen d’affichage proprement dit, et des moyens de fixation 102, 202 avec ladite planche de bord.The device 101, 201 comprises a box, comprising the actual display means, and fixing means 102, 202 with said dashboard.
Les moyens de fixation sont répartis de part et d’autre du boitier. Au moins un desdits moyens de fixation 102, 202 comporte une zone fusible 103 apte à rompre en réponse à un choc sur le pare-brise lorsque ledit choc est d'une force supérieure à un seuil prédéterminé. On parle aussi de rupture programmée.The fixing means are distributed on either side of the box. At least one of said fastening means 102, 202 comprises a fusible zone 103 capable of breaking in response to an impact on the windshield when said impact is of a force greater than a predetermined threshold. We also speak of planned rupture.
Une patte de fixation 102 comporte une zone plane comprenant un orifice circulaire traversant 104 (ou trou débouchant) permettant par exemple une fixation par serrage d’une vis et d’un écrou.A fixing lug 102 comprises a flat zone comprising a circular through hole 104 (or through hole) allowing for example fixing by tightening a screw and a nut.
Avantageusement chaque moyen de fixation 102, 202 comporte une zone de fixation (la zone plane précédemment décrite), la zone fusible comportant au moins une partie dont une épaisseur de matière est inférieure à une épaisseur de matière de la zone de fixation.Advantageously, each fixing means 102, 202 comprises a fixing zone (the flat zone previously described), the fusible zone comprising at least a part whose thickness of material is less than a thickness of material of the fixing zone.
Avantageusement, le dispositif d’affichage 101, 201 comprend au moins deux moyens 102, 202 de fixation, chaque moyen de fixation 102, 202 comportant une patte de fixation percée d’un moins un trou débouchant 104.Advantageously, the display device 101, 201 comprises at least two fixing means 102, 202, each fixing means 102, 202 comprising a fixing lug pierced with at least one through hole 104.
Selon un premier mode de réalisation, illustré
Selon un premier mode de réalisation, illustré
En référence à la
Lors d'un choc sur le parebrise, les moyens de fixation solidarisant le dispositif d’affichage solidarisé à la planche de bord, se rompent permettent un enfoncement dispositif dans la planche de bord permettant ainsi une absorption de l'énergie du choc. Il en résulte une amélioration de la sécurité du piéton percuté.During an impact on the windshield, the fastening means securing the display device secured to the dashboard break, allowing the device to sink into the dashboard, thus allowing absorption of the energy of the impact. This results in an improvement in the safety of the pedestrian struck.
En créant des lignes de fusibilité sur les pattes de fixations de ces afficheurs et en aménageant leur potentiel de translation dans la direction de l’impact d’une tête piéton, on permet à ces afficheurs de s’échapper sous l’effort d’un choc tête piéton, tout en maintenant une rigidité suffisante à une bonne tenue vibratoire pour un affichage de qualité.
By creating fuse lines on the mounting tabs of these displays and by arranging their translation potential in the direction of the impact of a pedestrian's head, these displays are allowed to escape under the force of a pedestrian head impact, while maintaining sufficient rigidity with good vibration resistance for a quality display.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2011142A FR3115891A1 (en) | 2020-10-30 | 2020-10-30 | Display device incorporating protection in the event of impact |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2011142 | 2020-10-30 | ||
| FR2011142A FR3115891A1 (en) | 2020-10-30 | 2020-10-30 | Display device incorporating protection in the event of impact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR3115891A1 true FR3115891A1 (en) | 2022-05-06 |
Family
ID=75746672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR2011142A Pending FR3115891A1 (en) | 2020-10-30 | 2020-10-30 | Display device incorporating protection in the event of impact |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR3115891A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010064709A (en) * | 2008-09-12 | 2010-03-25 | Denso Corp | Head-up display |
| JP2012035736A (en) * | 2010-08-06 | 2012-02-23 | Toyota Motor Corp | Head up display device |
| FR2979999A1 (en) | 2011-09-12 | 2013-03-15 | Peugeot Citroen Automobiles Sa | System for fixing head-up vision case on crosspiece of fascia of car in vicinity of front windscreen, has disengagement units for automatically disengaging case from crosspiece during frontal shock by releasing bolts from through openings |
| EP2784570A1 (en) * | 2013-03-27 | 2014-10-01 | Jabil Circuit, Inc. | Head-up display system |
| DE112014000873T5 (en) * | 2013-02-18 | 2015-11-05 | Yazaki Corporation | Head-up display device |
-
2020
- 2020-10-30 FR FR2011142A patent/FR3115891A1/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010064709A (en) * | 2008-09-12 | 2010-03-25 | Denso Corp | Head-up display |
| JP2012035736A (en) * | 2010-08-06 | 2012-02-23 | Toyota Motor Corp | Head up display device |
| FR2979999A1 (en) | 2011-09-12 | 2013-03-15 | Peugeot Citroen Automobiles Sa | System for fixing head-up vision case on crosspiece of fascia of car in vicinity of front windscreen, has disengagement units for automatically disengaging case from crosspiece during frontal shock by releasing bolts from through openings |
| DE112014000873T5 (en) * | 2013-02-18 | 2015-11-05 | Yazaki Corporation | Head-up display device |
| EP2784570A1 (en) * | 2013-03-27 | 2014-10-01 | Jabil Circuit, Inc. | Head-up display system |
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Effective date: 20220506 |
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Owner name: STELLANTIS AUTO SAS, FR Effective date: 20240423 |