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FR2980424A1 - Plastic protection panel for protecting side door of car, has decorative film whose interior face is equipped with relief model conferring in transparency in surface effect on flexible wall, where interior face of decorative film is coated - Google Patents

Plastic protection panel for protecting side door of car, has decorative film whose interior face is equipped with relief model conferring in transparency in surface effect on flexible wall, where interior face of decorative film is coated Download PDF

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Publication number
FR2980424A1
FR2980424A1 FR1158514A FR1158514A FR2980424A1 FR 2980424 A1 FR2980424 A1 FR 2980424A1 FR 1158514 A FR1158514 A FR 1158514A FR 1158514 A FR1158514 A FR 1158514A FR 2980424 A1 FR2980424 A1 FR 2980424A1
Authority
FR
France
Prior art keywords
film
plastic
decorative film
flexible wall
wall
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
Application number
FR1158514A
Other languages
French (fr)
Other versions
FR2980424B1 (en
Inventor
Stephane Mesaric
Maurice Carfantan
Sebastien Colin
Eddy Pennerath
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PSA Automobiles SA
Rehau SAS
Original Assignee
Peugeot Citroen Automobiles SA
Rehau SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Peugeot Citroen Automobiles SA, Rehau SAS filed Critical Peugeot Citroen Automobiles SA
Priority to FR1158514A priority Critical patent/FR2980424B1/en
Publication of FR2980424A1 publication Critical patent/FR2980424A1/en
Application granted granted Critical
Publication of FR2980424B1 publication Critical patent/FR2980424B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/04External Ornamental or guard strips; Ornamental inscriptive devices thereon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14688Coating articles provided with a decoration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/42Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects extending primarily along the sides of, or completely encircling, a vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/1418Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14778Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2633/00Use of polymers of unsaturated acids or derivatives thereof for preformed parts, e.g. for inserts
    • B29K2633/04Polymers of esters
    • B29K2633/12Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2675/00Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, for preformed parts, e.g. for inserts

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

The panel has a rigid plastic wall and a flexible plastic wall (1) that are attached with each other in zones, where each zone is surrounded by two walls. An outer side of the flexible wall comprises a decorative film (2), where an outer side (2a) of the decorative film is smooth. An interior face (2b) of the decorative film is equipped with a relief model conferring in transparency in surface effect on the flexible wall, where the interior face of the decorative film is coated. The decorative film is made of decorative film such as thermoplastic polyurethanes or polymethylmethacrylate. An independent claim is also included for a method for manufacturing of a flexible wall of a plastic protection panel.

Description

PANNEAU DE PROTECTION DESTINE A ETRE FIXE SUR UNE PARTIE DE LA CARROSSERIE D'UN VEHICULE AUTOMOBILE. La présente invention concerne un panneau de protection pour pièce de carrosserie de véhicule automobile, obtenu par injection de matière plastique dans un moule ainsi que son procédé de fabrication. Les portes latérales des véhicules automobiles sont souvent équipées de baguettes de protection qui sont censées protéger ces portes à l'égard de petits chocs urbains, tels que les chocs de portes latérales, et de caddies. Du fait de leur faible largeur, ces baguettes ont une fonction de protection qui est très réduite. Certains véhicules sont équipés de bandeaux latéraux présentant une grande largeur. Ces bandeaux sont en matière plastique rigide et ne présentent ainsi pas la capacité de se déformer sous l'effet d'un petit choc urbain. De ce fait, l'énergie d'impact en cas de choc d'un chariot de supermarché ou d'un choc poteau est transmise intégralement à la portière. Ce bandeaux présentent tout au plus l'avantage qu'en cas d'éraflures, ils évitent d'avoir à repeindre la totalité d'une porte ou d'une aile du véhicule. Pour améliorer ce type de protection, on a proposé de réaliser un panneau de protection en matière plastique destiné à être fixé sur une partie de la carrosserie d'un véhicule automobile, comprenant une paroi en matière plastique rigide et une paroi en matière plastique souple, ces deux parois étant en contact l'une avec l'autre dans des zones qui entourent des zones dans lesquelles ces deux parois sont espacées l'une de l'autre, et qui définissent entre elles des cellules qui sont remplies d'air délimitées par une liaison étanche. Ainsi, les zones dans lesquelles la paroi en matière plastique souple est espacée de la paroi en matière plastique rigide sont remplies d'air et sont déformables en cas de choc de type urbain. Lors d'un tel choc, la paroi souple se rapproche de la paroi rigide, sans être endommagée, ni même éraflée. Un tel panneau présente donc une capacité de protection plus intéressante. Un tel panneau de protection est donc rapporté sur le véhicule. La matière constituant le panneau souple peut être teinté dans la masse pour lui donner un aspect coloré voulu. En effet, un tel panneau ne peut être peint dans la mesure où la peau souple est deformable alors qu'une peinture apposée dessus n'aurait pas les caractéristiques élastiques voulues. Une possibilité autre que la peinture consiste à revêtir des pièces de 10 carrosserie de véhicules automobiles avec des films remplaçant la traditionnelle couche de peinture. On peut ainsi proposer une plus grande diversité de décors. De manière classique, on positionne un film préparé de manière adéquate dans un moule, puis on injecte pour surmoulage la matière plastique 15 constituant la pièce de carrosserie. On connaît ainsi par EP0266107, une pièce de carrosserie en matière plastique moulée recouverte d'un film décoratif. La pièce est réalisée en plaçant le film décoratif dans le moule puis en injectant le matériau polymère. L'adhésion entre la surface interne du film et le matériau moulé, peut être 20 réalisée par une couche intermédiaire adhésive présente sur la surface interne du film. Optionnellement, un traitement corona peut être réalisé pour optimiser l'adhésion entre le film et la partie moulée. Dans FR 2 815 000, est proposée une pièce de carrosserie obtenue par injection de matière plastique dans un moule, comportant une partie décorée 25 par un film. Le film comporte des zones texturées sur sa face visible tournée vers l'extérieur de la pièce et qui se trouvent au droit de régions de face invisible tournée vers l'intérieur de la pièce dans lesquelles le film a subi des dégradations. Grâce à ces zones texturées, on permet de dissimuler les parties endommagées sur la face invisible du film. Par conséquent, l'effet esthétique conféré par ses zones découle de leurs effets fonctionnels. PROTECTIVE PANEL FOR FASTENING ON A PART OF THE BODY OF A MOTOR VEHICLE. The present invention relates to a protective panel for a bodywork part of a motor vehicle, obtained by injection molding plastic into a mold and its manufacturing process. The side doors of motor vehicles are often equipped with protective rods that are supposed to protect these doors against small urban shocks, such as side door shocks, and caddies. Due to their small width, these rods have a protection function which is very small. Some vehicles are equipped with side bands having a large width. These bands are rigid plastic and therefore do not have the ability to deform under the effect of a small urban shock. As a result, impact energy in case of impact of a supermarket trolley or post shock is transmitted integrally to the door. These bands have at most the advantage that in case of scratches, they avoid having to repaint the entire door or wing of the vehicle. To improve this type of protection, it has been proposed to make a plastic protective panel intended to be fixed on a part of the bodywork of a motor vehicle, comprising a rigid plastic wall and a flexible plastic wall, both of these walls being in contact with one another in zones which surround zones in which these two walls are spaced from one another, and which define between them cells which are filled with air delimited by a tight connection. Thus, the areas in which the flexible plastic wall is spaced from the rigid plastic wall are filled with air and are deformable in case of urban type shock. During such an impact, the flexible wall is close to the rigid wall, without being damaged or even scuffed. Such a panel therefore has a more interesting protection capacity. Such a protective panel is attached to the vehicle. The material constituting the flexible panel can be stained in the mass to give it a desired color appearance. Indeed, such a panel can not be painted to the extent that the flexible skin is deformable while a paint affixed to it would not have the desired elastic characteristics. A possibility other than painting is to coat automotive body parts with films replacing the traditional paint layer. We can thus propose a greater diversity of decorations. Conventionally, a suitably prepared film is positioned in a mold, and the plastic material constituting the bodywork part is injected for overmolding. Thus, EP0266107 discloses a bodywork part made of molded plastic material covered with a decorative film. The piece is made by placing the decorative film in the mold and then injecting the polymer material. The adhesion between the inner surface of the film and the molded material can be achieved by an adhesive interlayer present on the inner surface of the film. Optionally, a corona treatment can be performed to optimize the adhesion between the film and the molded part. In FR 2 815 000, there is provided a bodywork part obtained by injecting plastic material into a mold, comprising a part decorated by a film. The film has textured areas on its visible face facing the outside of the room and which are in the right of regions of invisible face turned towards the interior of the room in which the film has been damaged. Thanks to these textured areas, it is possible to hide the damaged parts on the invisible side of the film. Therefore, the aesthetic effect conferred by its areas derives from their functional effects.

La présente invention propose quant à elle un panneau de protection pour pièce de carrosserie de véhicule automobile présentant un effet de surface ainsi que son procédé de fabrication. A cet effet, l'invention a pour objet un panneau de protection en matière plastique destiné à être fixé sur une partie de la carrosserie d'un véhicule automobile, comprenant une paroi en matière plastique rigide et une paroi en matière plastique souple, ces deux parois étant en contact l'une avec l'autre dans des zones qui entourent au moins une zone dans laquelle ces deux parois sont espacées l'une de l'autre, caractérisé en ce que la paroi souple comporte sur sa face extérieure un film décoratif en matière plastique, dont la face extérieure est lisse et la face intérieure est pourvue de reliefs conférant en transparence un effet de surface à la paroi souple ainsi revêtue. Ainsi, de manière avantageuse, on peut conférer à la surface du panneau souple un effet de surface tel qu'un effet carbone et ce, de manière simple. De préférence, cet effet de surface est obtenu en utilisant un film de matière plastique dont la face intérieure a subi une opération de grainage. De préférence, on utilise un film en matière plastique telle que polyuréthannes thermoplastiques (TPU), Polyméthylmétacrylate (PMMA). Une telle matière plastique est notamment choisie pour ses propriétés mécaniques et thermiques lui permettant une résistance élevée aux rayures, une grande nettoyabilité et que son pouvoir de résistance à une grande variabilité des conditions climatiques extérieures. The present invention proposes a protective panel for a motor vehicle body part having a surface effect and its manufacturing process. For this purpose, the subject of the invention is a protective plastic panel intended to be fixed on a part of the bodywork of a motor vehicle, comprising a rigid plastic wall and a flexible plastic wall, both walls being in contact with one another in zones which surround at least one zone in which these two walls are spaced from one another, characterized in that the flexible wall has on its outer face a decorative film plastic, whose outer face is smooth and the inner face is provided with reliefs conferring a transparent surface effect to the flexible wall thus coated. Thus, advantageously, the surface of the flexible panel can be imparted with a surface effect such as a carbon effect and in a simple manner. Preferably, this surface effect is obtained by using a plastic film whose inner face has undergone a graining operation. Preferably, a plastic film is used such as thermoplastic polyurethanes (TPU), polymethylmethacrylate (PMMA). Such a plastic material is chosen in particular for its mechanical and thermal properties which allow it a high resistance to scratching, a great cleanability and its ability to withstand a great variability of the external climatic conditions.

De préférence, un tel film présente épaisseur de l'ordre de 0,3 mm. Une telle finesse permet après le surmoulage du panneau de conserver la flexibilité de la paroi souple extérieure, notamment au niveau des zones espacées des parois formant des cellules remplies d'air délimitées par une liaison étanche et déformables sous l'effet d'un choc. Ces cellules comportent, de manière préférée, un évent ménagé dans la paroi rigide au niveau de chaque cellule, cet évent étant dimensionné pour ne pas laisser s'échapper de l'air en cas de choc ou d'effort rapide sur la cellule tout en permettant un échappement et une entrée d'air lors de variation de pression interne dans la cellule sous l'effet de variations thermiques. Le film peut être transparent et contenir des agents anti-UV, il peut être teinté translucide ou opaque en couleur unie ou métallisée. L'invention concerne également un procédé de fabrication de la paroi souple du panneau dans lequel, dans un moule ouvert, on met en place un film plastique qui présente une face lisse et une face pourvue de relies, de préférence d'une épaisseur de 0,3 mm, sa face lisse contre la matrice du moule, le film étant maintenu dans la zone du plan de joint du moule qui est alors refermé, la matière plastique constituant la paroi souple telle que du TPU étant ensuite injectée dans le moule et sous l'effet de la pression d'injection le film étant plaqué contre la matrice du moule. La paroi souple est ensuite assemblée à la paroi rigide pour former le panneau de protection. On décrira maintenant l'invention plus en détail en référence au dessin dans lequel : La figure 1 représente une vue en coupe d'une paroi souple d'un panneau de protection Les figures 2a, 2b et 2c représente schématiquement différentes étapes de fabrication La présente invention vise donc un panneau de protection qui comprend une paroi en matière plastique rigide et une paroi en matière plastique souple 1 qui sont en contact l'une avec l'autre dans des zones qui entourent au moins une zone dans laquelle ces deux parois sont espacées l'une de l'autre. Preferably, such a film has a thickness of the order of 0.3 mm. Such fineness allows after molding of the panel to retain the flexibility of the outer flexible wall, especially at spaced areas of the walls forming air-filled cells delimited by a sealed connection and deformable under the effect of a shock. These cells preferably comprise a vent formed in the rigid wall at the level of each cell, this vent being sized so as not to allow air to escape in the event of impact or rapid force on the cell while allowing an escape and an air inlet during variation of internal pressure in the cell under the effect of thermal variations. The film can be transparent and contain anti-UV agents, it can be tinted translucent or opaque in solid color or metallized. The invention also relates to a method of manufacturing the flexible wall of the panel in which, in an open mold, a plastic film is placed which has a smooth face and a face provided with connections, preferably having a thickness of 0. , 3 mm, its smooth face against the die of the mold, the film being held in the area of the joint plane of the mold which is then closed, the plastic material constituting the flexible wall such as TPU is then injected into the mold and under the effect of the injection pressure, the film being pressed against the die of the mold. The flexible wall is then assembled to the rigid wall to form the protection panel. The invention will now be described in more detail with reference to the drawing in which: FIG. 1 represents a sectional view of a flexible wall of a protection panel. FIGS. 2a, 2b and 2c schematically represent different manufacturing steps. The invention therefore relates to a protective panel which comprises a rigid plastic wall and a flexible plastic wall 1 which are in contact with one another in zones which surround at least one zone in which these two walls are spaced apart. one from the other.

Comme on peut le voir à la figure 1, cette paroi souple 1 comporte sur sa face extérieure un film 2 en matière plastique. Ce film 2 peut présenter des aspects différents conférant à la paroi souple 1 un aspect spécifique. En particulier, ce film 2 est utilisé pour conférer à la paroi souple 1 un aspect de surface particulier sans que la surface de ladite paroi souple 1 ait besoin elle-même d'être traitée. Ainsi, ce film 2 présente une face extérieure lisse 2a tandis que sa face intérieure 2b est pourvue de reliefs qui confèrent en transparence un effet de surface à la paroi souple 1 ainsi revêtue. Afin de créer ces reliefs en surface, un tel film 2 est grainé par molette sur toute sa largeur lors du calandrage. Le film 2 une fois mis en place sur la paroi souple 1 doit présenter sa face lisse 2a côté extérieur tandis que sa face grainée 2b est côté intérieur en contact avec la matière plastique de la paroi souple 1. Aussi, pour obtenir une telle paroi souple 1, on réalise une injection par surmoulage. Ainsi, dans un moule ouvert 1, on met en place le film plastique 2 qui présente de préférence une épaisseur de 0,3 mm, sa face lisse 2a contre la matrice la. Le film 2 est maintenu dans la zone du plan de joint du moule 1 qui est alors refermé. La matière plastique constituant la paroi souple 1 telle que du TPU est ensuite injectée dans le moule et sous l'effet de la pression d'injection le film 2 est plaqué contre la matrice la du moule. As can be seen in Figure 1, this flexible wall 1 has on its outer surface a film 2 of plastic. This film 2 may have different aspects giving the flexible wall 1 a specific appearance. In particular, this film 2 is used to give the flexible wall 1 a particular surface appearance without the surface of said flexible wall 1 itself needing to be treated. Thus, this film 2 has a smooth outer face 2a while its inner face 2b is provided with reliefs that provide a transparent surface effect to the flexible wall 1 thus coated. In order to create these reliefs on the surface, such a film 2 is grained by wheel over its entire width during calendering. The film 2 once put in place on the flexible wall 1 must have its smooth face 2a outside while its grained face 2b is inner side in contact with the plastic of the flexible wall 1. Also, to obtain such a flexible wall 1, an injection is made by overmolding. Thus, in an open mold 1, is placed in place the plastic film 2 which preferably has a thickness of 0.3 mm, its smooth face 2a against the matrix la. The film 2 is held in the area of the joint plane of the mold 1 which is then closed. The plastic material constituting the flexible wall 1 such as TPU is then injected into the mold and under the effect of the injection pressure the film 2 is pressed against the die 1a of the mold.

Le grainage étant présent sur la face 2b du film 2 qui se retrouve en interne, reste identique quelle que soit la zone. La peau externe 2b reste lisse et peut être traitée pour être brillante ou mate. The graining being present on the face 2b of the film 2 which is found internally, remains the same regardless of the area. The outer skin 2b remains smooth and can be treated to be shiny or matte.

Le grainage peut présenter de nombreux dessins différents et de ce fait, de nombreux effets sont possibles. On peut avantageusement aussi avec le même moule lisse, utiliser des films avec des grains différents permettant ainsi des effets différents sans changement d'outil. Le grainage peut être remplacé par des motifs en relief (par exemple des chevrons). D'autres effets sont envisageables, en combinant des zones lisses avec des zones grainées, en jouant sur la transparence et les couleurs. The graining may have many different designs and as such, many effects are possible. It is also advantageously with the same smooth mold, use films with different grains thus allowing different effects without tool change. The graining can be replaced by relief patterns (for example chevrons). Other effects are possible, combining smooth areas with grainy areas, playing on transparency and colors.

La paroi souple ainsi formée est ensuite assemblée sur la paroi rigide pour former le panneau de protection selon l'invention. The flexible wall thus formed is then assembled on the rigid wall to form the protection panel according to the invention.

Claims (7)

REVENDICATIONS1. Panneau de protection en matière plastique destiné à être fixé sur une partie de la carrosserie d'un véhicule automobile, comprenant une paroi en matière plastique rigide et une paroi en matière plastique souple (1), ces deux parois étant en contact l'une avec l'autre dans des zones qui entourent au moins une zone dans laquelle ces deux parois sont espacées l'une de l'autre, caractérisé en ce que la paroi souple (1) comporte sur sa face extérieure un film décoratif en matière plastique (2), dont la face extérieure (2a) est lisse et la face intérieure (2b) est pourvue de reliefs conférant en transparence un effet de surface à la paroi souple (1) ainsi revêtue. REVENDICATIONS1. Protective plastic panel for attachment to a part of the body of a motor vehicle, comprising a rigid plastic wall and a flexible plastic wall (1), both of which are in contact with each other the other in areas which surround at least one zone in which these two walls are spaced from each other, characterized in that the flexible wall (1) has on its outer surface a plastic decorative film (2 ), whose outer face (2a) is smooth and the inner face (2b) is provided with reliefs giving a transparent surface effect to the flexible wall (1) and coated. 2. Panneau selon la revendication 1, caractérisé en ce que cet effet de surface est obtenu en utilisant un film de matière plastique (2) dont la face intérieure (2b) a subi une opération de grainage. 2. Panel according to claim 1, characterized in that this surface effect is obtained by using a plastic film (2) whose inner face (2b) has undergone a graining operation. 3. Panneau selon l'une des revendications 1 et 2, caractérisé en ce que le film (2) est en une matière plastique telle que polyuréthannes thermoplastiques (TPU), Polyméthylmétacrylate (PMMA). 3. Panel according to one of claims 1 and 2, characterized in that the film (2) is a plastic material such as thermoplastic polyurethanes (TPU), polymethylmethacrylate (PMMA). 4. Panneau selon l'une des revendications 1 à 3, caractérisé en ce qu'un tel film présente une épaisseur de l'ordre de 0,3 mm. 4. Panel according to one of claims 1 to 3, characterized in that such a film has a thickness of about 0.3 mm. 5. Panneau selon l'une des revendications 1 à 4, caractérisé en ce que, au niveau des zones espacées des parois, sont formée des cellules remplies d'air délimitées par une liaison étanche et déformables sous l'effet d'un choc. 5. Panel according to one of claims 1 to 4, characterized in that, at the spaced regions of the walls, are formed air-filled cells bounded by a tight connection and deformable under the effect of an impact. 6. Panneau selon la revendication 5, caractérisé en ce qu'un évent est ménagé dans la paroi rigide au niveau de chaque cellule, cet évent étant dimensionné pour ne pas laisser s'échapper de l'air en cas de choc ou d'effort rapide sur la cellule tout en permettant un échappement et une entrée d'air lors de variation de pression interne dans la cellule sous l'effet de variations thermiques. 6. Panel according to claim 5, characterized in that a vent is formed in the rigid wall at each cell, this vent being sized to not let out air in case of shock or effort fast on the cell while allowing an exhaust and an air inlet during variation of internal pressure in the cell under the effect of thermal variations. 7. Procédé de fabrication de la paroi souple d'un panneau selon l'une des revendications 1 à 5, caractérisé en ce que dans un moule ouvert(1), on met en place un film plastique (2) pourvue d'une face lisse (2a) et d'une face pourvue de reliefs (2b), sa face lisse (2a) contre la matrice (1a) du moule (1), le film (2) étant maintenu dans la zone du plan de joint du moule (1) qui est alors refermé, la matière plastique constituant la paroi souple (1) étant ensuite injectée dans le moule (1) et sous l'effet de la pression d'injection le film (2) étant plaqué contre la matrice (1a) du moule. 7. A method of manufacturing the flexible wall of a panel according to one of claims 1 to 5, characterized in that in an open mold (1), is placed in place a plastic film (2) provided with a face smooth (2a) and a face provided with reliefs (2b), its smooth face (2a) against the die (1a) of the mold (1), the film (2) being held in the region of the joint plane of the mold (1) which is then closed again, the plastic material constituting the flexible wall (1) being then injected into the mold (1) and under the effect of the injection pressure, the film (2) being pressed against the matrix (1a ) of the mold.
FR1158514A 2011-09-23 2011-09-23 PROTECTIVE PANEL FOR FASTENING ON A PART OF THE BODY OF A MOTOR VEHICLE. Expired - Fee Related FR2980424B1 (en)

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FR1158514A FR2980424B1 (en) 2011-09-23 2011-09-23 PROTECTIVE PANEL FOR FASTENING ON A PART OF THE BODY OF A MOTOR VEHICLE.

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FR1158514A FR2980424B1 (en) 2011-09-23 2011-09-23 PROTECTIVE PANEL FOR FASTENING ON A PART OF THE BODY OF A MOTOR VEHICLE.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111186073A (en) * 2018-11-14 2020-05-22 全耐塑料公司 Smooth plastic parts with translucent film on surface

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1568563A (en) * 1976-10-29 1980-06-04 Kurz W Hot-stamping film and process for its manufacture
EP1362744A2 (en) * 2002-05-17 2003-11-19 Seeber AG & Co. KG Building element of synthetic material, in particular for an automobile, and process for manufacturing it
US20050260386A1 (en) * 2002-08-10 2005-11-24 Matthias Heinrich Partially structured multilayered film whose form can be decorated

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1568563A (en) * 1976-10-29 1980-06-04 Kurz W Hot-stamping film and process for its manufacture
EP1362744A2 (en) * 2002-05-17 2003-11-19 Seeber AG & Co. KG Building element of synthetic material, in particular for an automobile, and process for manufacturing it
US20050260386A1 (en) * 2002-08-10 2005-11-24 Matthias Heinrich Partially structured multilayered film whose form can be decorated

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111186073A (en) * 2018-11-14 2020-05-22 全耐塑料公司 Smooth plastic parts with translucent film on surface

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