FR2838703A1 - Automobile front bonnet comprises outer skin with interior lining crimped to periphery an in contact with skin by means of elastic lugs - Google Patents
Automobile front bonnet comprises outer skin with interior lining crimped to periphery an in contact with skin by means of elastic lugs Download PDFInfo
- Publication number
- FR2838703A1 FR2838703A1 FR0205029A FR0205029A FR2838703A1 FR 2838703 A1 FR2838703 A1 FR 2838703A1 FR 0205029 A FR0205029 A FR 0205029A FR 0205029 A FR0205029 A FR 0205029A FR 2838703 A1 FR2838703 A1 FR 2838703A1
- Authority
- FR
- France
- Prior art keywords
- skin
- lining
- hood
- periphery
- crimped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
- B62D25/105—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles for motor cars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
- B60R2021/343—Protecting non-occupants of a vehicle, e.g. pedestrians using deformable body panel, bodywork or components
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Superstructure Of Vehicle (AREA)
Abstract
Description
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La presente invention concerne une structure de capot avant pour vehicule automobile destinee a permettre la protection du pieton en cas de choc frontal The present invention relates to a front hood structure for a motor vehicle intended to allow the protection of the pedestrian in the event of a frontal impact.
avec ledit vehicule.with said vehicle.
Wile se rapporte plus particulierement a une structure de capot avant pour vehicule automobile afin de permettre de diminuer les consequences pour un pieton et en particulier un enfant lors d'un choc frontal avec un vehicule Wile relates more particularly to a front hood structure for a motor vehicle in order to reduce the consequences for a pedestrian and in particular a child during a frontal impact with a vehicle.
automobile et notamment du choc de la tete sur le capot. automobile and in particular the impact of the head on the hood.
Une directive europeenne qui a terme devrait etre reglementaire et respectee par tous les vehicules, fixe des criteres biomecan iq ues s ur la jam be, le femur et la tete du pieton permettant ainsi de minimiser les consequences pour A European directive which in the long term should be regulatory and respected by all vehicles, sets biomechanical criteria on the jam, the femur and the head of the pedestrian thus thus minimizing the consequences for
ce dernier ayant subi une collision avec un vehicule. the latter having suffered a collision with a vehicle.
Ainsi, de nouvelles structures font ['objet de developpement chez les Thus, new structures are the subject of development among
constructeurs automobiles afin de respecter ces criteres de securite passive. car manufacturers in order to comply with these passive safety criteria.
Actuellement, la peripherie du capot assemble ne permet pas d'assurer de bonnes prestations en terme de securite passive lors d'un choc de la fete. Toutefois, les capots actuels permettent de garantir les prestations liees a la manoeuvre du capot, a savoir, une rigidite suffisante d'une part pour que le capot n'impacte pas les projecteurs lors du claquage de fermeture du capot et d'autre part pour donner une bonne impression de tenue, une resistance aux essais Currently, the periphery of the assembled cover does not provide good benefits in terms of passive safety during a holiday shock. However, the current hoods make it possible to guarantee the services linked to the maneuvering of the hood, namely, sufficient rigidity on the one hand so that the hood does not impact the headlights during the breakdown of closing of the hood and on the other hand for give a good impression of resistance, resistance to tests
d'endurance d'un cycle d'ouverture et de fermeture du capot. endurance of a hood opening and closing cycle.
Le but de ['invention est done de proposer une structure de capot avant qui The object of the invention is therefore to propose a front hood structure which
permet de resoudre tout ou partie des inconvenients precites. solves all or part of the aforementioned drawbacks.
A cet effet, la presente invention a pour objet une structure de capot avant pour vehicule automobile, comportant une peau exterieure et une doublure interieure rel iee a la peripherie de la pea u du ca pot notamment par sertissage, To this end, the present invention relates to a front hood structure for a motor vehicle, comprising an outer skin and an inner lining connected to the periphery of the skin of the pot, in particular by crimping,
caracterisee en ce que la doublure est en contact avec le cceur de la peau, c'est- characterized in that the lining is in contact with the core of the skin,
a-dire a l'interieur de la peripherie de la peau uniquement par des pastes de ie inside the periphery of the skin only by pastes of
maintien presentant une caracteristique elastique en cas d'effort sur le capot. support having an elastic characteristic in the event of effort on the hood.
Selon une caracteristique avantageuse de la presente invention, les pastes de maintien vent disposees de maniere symetrique par rapport a 1'axe According to an advantageous characteristic of the present invention, the wind holding steps arranged symmetrically with respect to the axis
longitudinal du capot.hood longitudinal.
Selon une autre caracteristique avantageuse de la presente invention, les According to another advantageous characteristic of the present invention, the
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pastes de maintien presentent chacune la forme d'une portion bombee dirigee en direction de ia peau directement a partir de la doublure qui se prolonge par une portion rectiligne sur laquelle est dispose un moyen de fixation avec la peau du capot. s Toujours selon ['invention, les pastes de maintien vent realisees par des holding pastes each have the shape of a convex portion directed towards the skin directly from the lining which is extended by a rectilinear portion on which there is a means of fixing with the skin of the cover. s Still according to the invention, the wind holding steps performed by
parties saillantes de la doublure formant ainsi une unique piece. protruding parts of the lining thus forming a single piece.
Selon une autre caracteristique avantageuse de la presente invention, la According to another advantageous characteristic of the present invention, the
peau et la doublure vent realisees en aluminium ou en acier. skin and wind lining made of aluminum or steel.
Un autre objet de la presente invention concerne un vehicule automobile, caracterise en ce qu'il comporte une structure de capot avant conforme a l'une Another object of the present invention relates to a motor vehicle, characterized in that it comprises a front hood structure conforming to one
quelconque des caracteristiques decrites ci-dessus. any of the features described above.
Les caracteristiques de ['invention mentionnees ci-dessus, ainsi que The characteristics of the invention mentioned above, as well as
d'autres, appara^'tront plus clairement a la lecture de la description suivante d'un others will appear more clearly on reading the following description of a
exemple de realisation, en se referent aux dessins annexes sur lesquels: la figure 1 est une vue schematique de dessous d'une structure de capot selon la presente invention, et - la figure 2 est une vue en perspective en detail de la zone A de la figure 1 On a represente a la figure 1, la face interne d'un capot comportant de maniere connue en soi une peau exterieure 1 realisee par exemple en aluminium OU encore en acier et une doublure interieure 2 realisee dans le meme materiau et reliee a la peau 1 du capot. De maniere classique la peripherie de la peau 1 exemplary embodiment, with reference to the accompanying drawings in which: FIG. 1 is a diagrammatic view from below of a hood structure according to the present invention, and FIG. 2 is a perspective view in detail of zone A of Figure 1 We have shown in Figure 1, the inner face of a cover comprising in a manner known per se an outer skin 1 made for example of aluminum OR still steel and an inner lining 2 made in the same material and connected to the skin 1 of the cover. Classically the periphery of the skin 1
du capot est sertie avec sa doublure 2. cover is crimped with its lining 2.
Selon ['invention, la doublure 2 est en contact avec le coeur de la peau, c'est-a-dire a l'interieur de la peripherie de la peau 1 uniquement par des pastes de maintien 3 presentant une caracteristique elastique en cas d'effort sur le capot According to the invention, the lining 2 is in contact with the heart of the skin, that is to say inside the periphery of the skin 1 only by holding strips 3 having an elastic characteristic in the event of on the hood
et disposees de maniere symetrique par rapport a l'axe longitudinal P du capot. and arranged symmetrically with respect to the longitudinal axis P of the cover.
Ces pastes de maintien 3 vent solidarisees sur le cceur de la peau au moyen d'une fixation 4 par exemple du mastic de calage couramment utilise pour These holding pastes 3 wind secured to the core of the skin by means of a fixing 4, for example wedging putty commonly used for
la fixation sur les structures de capot de l'art anterieur. fixing on the hood structures of the prior art.
Selon le mode de realisation represente a la figure 1, le nombre total de pastes de maintien 3 est de huit, disposees de maniere symetrique. Ce nombre According to the embodiment shown in Figure 1, the total number of holding steps 3 is eight, arranged symmetrically. This number
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n'est pas limitatif et varie en fonction de la taille du capot et de la raideur que le is not limiting and varies according to the size of the hood and the stiffness that the
constructeur veut bien lui donner.builder is willing to give it to him.
Avantageusement, les pastes de maintien 3 vent realisees, comme visible sur la figure 2, par des parties saillantes de la doublure 2 formant ainsi une unique piece et presentent chacune la forme d'une portion bombee 5 dirigee en direction de la peau 1 directement a partir de la doublure 2 qui se prolonge par une portion rectiligne 6 sur laqueile est dispose le moyen de fixation 4, du type Advantageously, the 3 wind holding steps made, as visible in FIG. 2, by protruding parts of the lining 2 thus forming a single piece and each have the shape of a convex portion 5 directed towards the skin 1 directly at starting from the lining 2 which is extended by a rectilinear portion 6 on the laqueile, there is the fixing means 4, of the type
mastic, avec la peau 1 du capot.sealant, with the skin 1 of the cover.
On comprend qu'une telle forme permet d'assurer un amortissement lors 0 eventuellement d'un choc de la tete d'un pieton sur le capot, par la flexion desdites pastes. En outre, la forme de ces pastes 3 permet egalement lors du It is understood that such a shape makes it possible to ensure damping during a possible impact of the head of a pedestrian on the hood, by the flexion of said steps. In addition, the shape of these pastes 3 also allows during the
choc, de ne pas faire ressortir de forme agressive susceptible de nuire au pieton. shock, not to bring out an aggressive form likely to harm the pedestrian.
Par ailleurs, ces pastes vent reparties sur tout le cceur de la peau et presentent une longueur adequate afin de conserver des performances equivalentes a celles d'une structure d'un capot classique en terme de tenue a Furthermore, these pastes are distributed over the entire core of the skin and have an adequate length in order to maintain performance equivalent to that of a structure of a conventional hood in terms of resistance to
['endurance au claquage et de rigidite. ['endurance to breakdown and stiffness.
On comprend a la lecture de la description ci-dessus que la structure de It is understood from reading the description above that the structure of
capot selon la presente invention est relativement simple a realiser et permet de diminuer la raideur locale du capot afin de limiter les lesions d'un pieton ayant eu un choc avec le capot du vehicule tout en conservant une raideur globale bonnet according to the present invention is relatively simple to produce and makes it possible to reduce the local stiffness of the bonnet in order to limit the lesions of a pedestrian having had an impact with the bonnet of the vehicle while retaining an overall stiffness
inchangee permettant d'assurer les autres prestations classiques du capot. unchanged to ensure the other classic hood services.
En outre, on a constate qu'une structure de capot selon ['invention permet de reduire d'environ 10 % le poids total du capot. Cette reduction du poids permet d'avoir des consequences avantageuses pour le vehicule en general, In addition, it has been found that a hood structure according to the invention makes it possible to reduce the total weight of the hood by around 10%. This reduction in weight allows to have beneficial consequences for the vehicle in general,
2s notamment en terme d'economie d'energie. 2s especially in terms of energy saving.
On notera que l'epaisseur de la doublure et des pastes est de preference Note that the thickness of the lining and the pastes is preferably
de l'ordre de 1 mm.of the order of 1 mm.
Bien que ['invention ait ete decrite en liaison avec un mode de realisation Although the invention has been described in connection with an embodiment
particulier elle comprend tous les equivalents techniques des moyens decrits. particular it includes all the technical equivalents of the means described.
Ainsi, selon la taille du capot c'est-a-dire en fonction de sa largeur et de sa Thus, according to the size of the cover, that is to say according to its width and its
longueur, le nombre de pastes de maintien ainsi que leur emplacement varient. length, number of holding steps and location vary.
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Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0205029A FR2838703B1 (en) | 2002-04-23 | 2002-04-23 | FRONT HOOD STRUCTURE FOR MOTOR VEHICLE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0205029A FR2838703B1 (en) | 2002-04-23 | 2002-04-23 | FRONT HOOD STRUCTURE FOR MOTOR VEHICLE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2838703A1 true FR2838703A1 (en) | 2003-10-24 |
| FR2838703B1 FR2838703B1 (en) | 2004-07-30 |
Family
ID=28686263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0205029A Expired - Lifetime FR2838703B1 (en) | 2002-04-23 | 2002-04-23 | FRONT HOOD STRUCTURE FOR MOTOR VEHICLE |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2838703B1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2911842A1 (en) * | 2007-01-31 | 2008-08-01 | Peugeot Citroen Automobiles Sa | Front bonnet structure for vehicle i.e. motor vehicle, has inner liner contacting with interior of periphery of exterior skin by cylindrical bulged shape that is directed towards interior surface of skin from inner liner |
| FR2915168A1 (en) * | 2007-04-18 | 2008-10-24 | Peugeot Citroen Automobiles Sa | Bonnet for motor vehicle, has lining provided with V-shaped reinforcement arm and local reinforcements, where arm has part located in center of bonnet and other parts provided at proximity of hard points of engine |
| DE102009006781A1 (en) * | 2009-01-31 | 2010-08-05 | GM Global Technology Operations, Inc., Detroit | Front hood for motor vehicle body, has underbody comprising wall that extends transversely under body shell, where distance between wall and rear edge increases from center of edge to ends of edge |
| FR3018250A1 (en) * | 2014-03-07 | 2015-09-11 | Renault Sa | AUTOCLAVE TYPE COVER WITH INJECTED LINING SUPPORTING A STRUCTURE CROWN IN THE CLOSURE POSITION OF THE HOOD |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19929048A1 (en) * | 1999-06-25 | 1999-12-02 | Audi Ag | Large area vehicle body part, useful as engine cover for automobile |
| DE10064345A1 (en) * | 2000-12-21 | 2002-06-27 | Volkswagen Ag | Impact-damping engine bonnet has understructure connected to upper plate with its reinforcement structure stuck to plate only by adhesive points in central area leaving surrounding ring area free |
| DE10104334A1 (en) * | 2001-02-01 | 2002-08-22 | Karmann Gmbh W | Motor vehicle with a hood |
-
2002
- 2002-04-23 FR FR0205029A patent/FR2838703B1/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19929048A1 (en) * | 1999-06-25 | 1999-12-02 | Audi Ag | Large area vehicle body part, useful as engine cover for automobile |
| DE10064345A1 (en) * | 2000-12-21 | 2002-06-27 | Volkswagen Ag | Impact-damping engine bonnet has understructure connected to upper plate with its reinforcement structure stuck to plate only by adhesive points in central area leaving surrounding ring area free |
| DE10104334A1 (en) * | 2001-02-01 | 2002-08-22 | Karmann Gmbh W | Motor vehicle with a hood |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2911842A1 (en) * | 2007-01-31 | 2008-08-01 | Peugeot Citroen Automobiles Sa | Front bonnet structure for vehicle i.e. motor vehicle, has inner liner contacting with interior of periphery of exterior skin by cylindrical bulged shape that is directed towards interior surface of skin from inner liner |
| EP1953067A1 (en) * | 2007-01-31 | 2008-08-06 | Peugeot Citroën Automobiles S.A. | Front bonnet structure of a vehicle |
| FR2915168A1 (en) * | 2007-04-18 | 2008-10-24 | Peugeot Citroen Automobiles Sa | Bonnet for motor vehicle, has lining provided with V-shaped reinforcement arm and local reinforcements, where arm has part located in center of bonnet and other parts provided at proximity of hard points of engine |
| DE102009006781A1 (en) * | 2009-01-31 | 2010-08-05 | GM Global Technology Operations, Inc., Detroit | Front hood for motor vehicle body, has underbody comprising wall that extends transversely under body shell, where distance between wall and rear edge increases from center of edge to ends of edge |
| FR3018250A1 (en) * | 2014-03-07 | 2015-09-11 | Renault Sa | AUTOCLAVE TYPE COVER WITH INJECTED LINING SUPPORTING A STRUCTURE CROWN IN THE CLOSURE POSITION OF THE HOOD |
| WO2015136184A1 (en) * | 2014-03-07 | 2015-09-17 | Renault S.A.S. | Hood of the wraparound type having an injection-moulded lining that bears against a structural ring in the closed position of the hood |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2838703B1 (en) | 2004-07-30 |
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