FR2873319A1 - Skin manufacturing process, especially for motor vehicle interior trim component, uses mould with two compartments with painted surfaces to produce adjacent zones with different aspects - Google Patents
Skin manufacturing process, especially for motor vehicle interior trim component, uses mould with two compartments with painted surfaces to produce adjacent zones with different aspects Download PDFInfo
- Publication number
- FR2873319A1 FR2873319A1 FR0408047A FR0408047A FR2873319A1 FR 2873319 A1 FR2873319 A1 FR 2873319A1 FR 0408047 A FR0408047 A FR 0408047A FR 0408047 A FR0408047 A FR 0408047A FR 2873319 A1 FR2873319 A1 FR 2873319A1
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- FR
- France
- Prior art keywords
- skin
- adjacent
- rib
- zones
- molding
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/305—Decorative or coloured joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/006—Joining parts moulded in separate cavities
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
- B29C65/565—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits involving interference fits, e.g. force-fits or press-fits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/124—Tongue and groove joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/431—Joining the articles to themselves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
- B29C37/0028—In-mould coating, e.g. by introducing the coating material into the mould after forming the article
- B29C2037/0035—In-mould coating, e.g. by introducing the coating material into the mould after forming the article the coating being applied as liquid, gel, paste or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
- B29C37/0028—In-mould coating, e.g. by introducing the coating material into the mould after forming the article
- B29C37/0032—In-mould coating, e.g. by introducing the coating material into the mould after forming the article the coating being applied upon the mould surface before introducing the moulding compound, e.g. applying a gelcoat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0081—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor of objects with parts connected by a thin section, e.g. hinge, tear line
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection 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
- B29C45/14467—Joining articles or parts of a single article
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING 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
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/002—Coloured
- B29K2995/0021—Multi-coloured
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3041—Trim panels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
La présente invention est relative à la fabrication d'une peau d'habillageThe present invention relates to the manufacture of a skin dressing
d'une pièce de parement en matière plastique, en particulier une pièce de parement d'intérieur d'automobile, la peau d'habillage comportant au moins deux zones d'aspect adjacentes, d'aspects of a plastic facing part, in particular an automobile interior cladding part, the cladding skin having at least two adjacent appearance areas, of
différents.different.
Différentes parties de l'intérieur d'une automobile comportent en général des revêtements stratifiés destinés à améliorer l'esthétique. Ce sont par exemple des revêtements de planche de tableau de bord ou des parements de portière. Ces pièces de revêtement stratifié sont constituées d'une peau d'habillage portée par une couche en mousse, par exemple en mousse de polyuréthane. La peau d'habillage est constituée d'une couche support en matière plastique injectée dont une face peut être colorée par une peinture, par exemple. La peau d'habillage peut comporter plusieurs zones de couleurs différentes ou plus généralement d'aspects différents, c'està-dire ayant au moins une couleur ou un grain ou une matité ou une brillance qui sont différents. Deux zones d'aspect, d'aspects différents, adjacentes sont séparées par une zone de liaison qui peut être relativement large ou peut être imprécise. Pour des raisons d'esthétique ces zones de liaison doivent être cachées, par exemple par une bande de décor adhésive, ou bien en faisant se rejoindre les deux zones de couleurs différentes au fond d'une gorge relativement importante qui camouffle la zone de liaison. L'utilisation de bandes de décor adhésives présente l'inconvénient de nécessiter un stock de bandes de décor et une opération supplémentaire de mise en place de ces bandes. La présence de gorges relativement importantes dans les zones de liaison entre deux zones d'aspect d'aspects différents limite les possibilités de conception de revêtement stratifié décoratif. Different parts of the interior of an automobile generally comprise laminate coatings intended to improve the aesthetics. These are, for example, dashboard coverings or door facings. These laminated coating parts consist of a covering skin carried by a foam layer, for example polyurethane foam. The covering skin consists of an injected plastic support layer, one side of which can be colored by a paint, for example. The skin can have several different color areas or more generally different aspects, that is to say having at least one color or a grain or a dullness or shine that are different. Two areas of appearance, of different, adjacent, aspects are separated by a connecting zone which may be relatively wide or may be inaccurate. For aesthetic reasons, these connection areas must be hidden, for example by a band of adhesive decor, or by causing the two different colored areas to meet at the bottom of a relatively large groove which camouflages the connection zone. The use of adhesive decor strips has the disadvantage of requiring a stock of decor strips and an additional operation of setting up these strips. The presence of relatively large grooves in the bonding areas between two different appearance areas of limitations limits the possibilities of decorative laminate coating design.
Les peaux d'habillages de revêtements stratifiés, dont les zones d'aspect d'aspects différents sont séparées par une gorge relativement profonde, sont fabriqués par un procédé dans lequel on utilise un moule d'injection comportant deux compartiments distincts séparés par une nervure. En occultant successivement chacun de ces compartiments, on revêt leur surface d'une peinture d'une couleur adaptée à la zone d'aspect qu'ils sont destinés à constituer. Une fois les compartiments du moule d'injection enduits de peinture, on réalise la couche support en injectant une matière plastique dans le moule d'injection. On obtient ainsi un revêtement stratifié comportant plusieurs zones d'aspect d'aspects différents adjacentes, séparées par une gorge, avec les inconvénients qui ont été indiqués précédemment. The skins of laminate coverings, whose appearance areas of different aspects are separated by a relatively deep groove, are manufactured by a method in which an injection mold is used comprising two separate compartments separated by a rib. By successively obscuring each of these compartments, their surface is coated with a paint of a color adapted to the area of appearance that they are intended to constitute. Once the compartments of the injection mold are coated with paint, the support layer is produced by injecting a plastic material into the injection mold. A laminate coating is thus obtained having a plurality of different appearance areas of different adjacent, separated by a groove, with the disadvantages which have been indicated previously.
Le but de la présente invention est de remédier à ces inconvénients en proposant un procédé pour fabriquer une peau d'habillage d'un revêtement stratifié d'une pièce de parement en matière plastique constituée d'une couche support en matière plastique, comportant au moins deux zones d'aspect adjacentes, d'aspects différents, jointives. The object of the present invention is to remedy these drawbacks by proposing a method for manufacturing a covering skin of a laminated coating of a plastic facing part consisting of a plastic support layer, comprising at least two areas of adjacent appearance, of different aspects, joined.
A cet effet, l'invention a pour objet un procédé de fabrication d'une peau d'habillage d'un revêtement stratifié d'une pièce de parement en matière plastique, comprenant une couche support en matière plastique, la peau d'habillage comportant au moins deux zones d'aspect adjacentes, d'aspects différents, selon lequel, dans un moule d'injection comprenant au moins un premier compartiment de moulage dont une face est enduite d'une première peinture destinée à former une première zone d'aspect de la peau d'habillage, et un deuxième compartiment de moulage dont une face est enduite d'une deuxième peinture destinée à former une deuxième zone d'aspect de la peau d'habillage, on injecte la matière plastique destinée à former la couche support, puis on laisse refroidir et on démoule le revêtement. Selon ce procédé, les deux compartiments de moulage du moule sont séparées par une nervure conformée pour former dans la peau d'habillage une bande de liaison souple permettant de rapprocher deux lèvres de jonction des deux zones d'aspect adjacentes. For this purpose, the subject of the invention is a process for manufacturing a skin for covering a laminated coating of a plastic facing part, comprising a support layer made of plastic material, the covering skin comprising at least two adjacent appearance zones, of different aspects, according to which, in an injection mold comprising at least a first molding compartment, one face of which is coated with a first paint intended to form a first appearance zone of the covering skin, and a second molding compartment, one side of which is coated with a second paint intended to form a second zone of appearance of the covering skin, the plastic material intended to form the support layer is injected then allowed to cool and the coating is unmolded. According to this method, the two molding compartments of the mold are separated by a rib shaped to form in the skin dressing a flexible connecting strip to bring two joining lips of the two adjacent appearance areas.
De préférence, la bordure d'un compartiment de moulage comporte une gorge de telle sorte que la lèvre de jonction de l'une des deux zones d'aspect adjacentes comporte au moins une nervure s'étendant sur toute sa longueur et la bordure d'un autre compartiment de moulage comporte une nervure de telle sorte que la lèvre de jonction de l'autre zone d'aspect comporte au moins une gorge complémentaire de ladite nervure, s'étendant sur toute sa longueur, de façon à permettre de verrouiller, au moins partiellement, la jonction des deux lèvres en faisant coopérer au moins une nervure avec au moins une gorge. Preferably, the edge of a molding compartment has a groove such that the joining lip of one of the two adjacent appearance areas has at least one rib extending over its entire length and the edge of another molding compartment comprises a rib such that the joining lip of the other aspect zone comprises at least one groove complementary to said rib, extending over its entire length, so as to make it possible to lock, less partially, the junction of the two lips by cooperating at least one rib with at least one groove.
En outre, après démoulage, on assure la jonction des lèvres de jonction d'au moins deux zones d'aspect adjacentes. In addition, after demolding, it ensures the junction of the joining lips of at least two adjacent appearance areas.
On peut fixer la jonction de deux lèvres, par exemple, par collage. We can fix the junction of two lips, for example, by gluing.
De préférence, les deux compartiments de moulage adjacents du moule sont séparés par une nervure servant à former la bande de liaison souple, dont la conformation permet de peindre une face de chacun des deux compartiments de moulage adjacents avec deux peintures différentes en séparant bien les deux faces. Preferably, the two adjacent molding compartments of the mold are separated by a rib for forming the flexible connecting strip, the conformation of which makes it possible to paint one face of each of the two adjacent molding compartments with two different paints by separating the two faces.
Les deux compartiments de moulage adjacents peuvent être décalées en hauteur l'un par rapport à l'autre et la nervure de séparation des deux compartiments de moulage adjacents peuvent s'étendre partiellement audessus d'un compartiment de moulage, le long du bord destiné à former une lèvre de jonction. The two adjacent molding compartments may be offset in height relative to each other and the separating rib of the two adjacent molding compartments may extend partially above a molding compartment along the edge for form a joining lip.
Les deux zones d'aspect jointives, d'aspects différents, sont différentes par exemple par au moins l'une des caractéristiques suivantes: couleur, grain, matité et brillance. The two contiguous appearance areas, of different aspects, are different for example by at least one of the following characteristics: color, grain, mattness and shine.
La couche support est constituée par exemple de polyuréthane. The support layer consists for example of polyurethane.
La peau d'habillage est par exemple la peau d'habillage d'un revêtement stratifié d'une pièce de parement d'intérieur d'automobile. The covering skin is for example the covering skin of a laminate coating of an automobile interior facing part.
L'invention concerne également une peau d'habillage d'un revêtement stratifié d'une pièce de parement, et notamment d'une pièce de parement d'intérieur d'automobile, constituée d'une couche support présentant au moins deux zones d'aspect adjacentes, d'aspects différents, susceptible d'être fabriquée par le procédé selon l'invention, dans lequel deux zones d'aspect d'aspects différents adjacentes sont reliées entre elles par une bande de liaison et deux lèvres de jonction qui coopèrent sans laisser de jeu. The invention also relates to a covering skin of a laminated coating of a facing part, and in particular of an automobile interior facing part, consisting of a support layer having at least two zones of adjacent aspect, of different aspects, capable of being manufactured by the method according to the invention, in which two zones of appearance of different different aspects are connected to each other by a connecting strip and two joining lips which cooperate without let play
L'invention va maintenant être décrite de façon plus précise mais non limitative en regard des figures annexées et dans lesquelles: - la figure 1 représente une vue en coupe de la zone de liaison de deux compartiments d'un moule de moussage destiné à former un revêtement stratifié comportant deux zones d'aspect différentes. The invention will now be described in a more precise but nonlimiting manner with reference to the appended figures and in which: - Figure 1 shows a sectional view of the connection zone of two compartments of a foaming mold intended to form a laminate coating with two different appearance areas.
- la figure 2 représente une vue en coupe de la zone de liaison de deux zones d'aspect d'aspects différents d'un revêtement stratifié d'une pièce de parement en matière plastique. - Figure 2 shows a sectional view of the bonding zone of two appearance areas of different aspects of a laminate coating of a plastic facing part.
Le moule d'injection, repéré généralement par 1 à la figure 1, est constitué d'un premier demi moule inférieur 2 et d'un deuxième demi moule supérieur 3 disposés l'un au dessus de l'autre et qui délimitent entres eux une cavité de moulage 4 destinée à mouler par injection la couche de support en mousse d'un revêtement stratifié d'une pièce de parement en matière plastique. La cavité de moulage 4 est divisée en deux compartiments 4A et 4B qui comportent chacun une surface inférieure 5A et 5B destinées à recevoir une couche de peinture 9A dans le compartiment 4A, et 9B dans le compartiment 4B. Ces couches de peinture 9A et 9B sont destinées, comme on le verra plus loin, à réaliser les zones d'aspect d'aspects différents de la peau d'habillage d'un revêtement stratifié d'une pièce de parement en matière plastique. Les deux compartiments 4A et 4B sont décalés en hauteur, c'est-à-dire par rapport à une direction perpendiculaire à la surface inférieure de la cavité de moulage, de telle sorte que la surface 5A de la cavité 4A se trouve au dessus de la surface inférieure 5B de la cavité 4B. Les deux compartiments 4A et 4B sont séparés par une nervure 6 prévue dans le demi moule inférieur 2 et conformée pour former dans la peau d'habillage une bande de liaison souple Il permettant de rapprocher deux lèvres de jonction 12A et 12B de deux zones d'aspects 10A et 10B d'un revêtement stratifié d'une pièce de parement. Au droit de la nervure 6, le demi moule supérieur 3 présente une forme complémentaire de la nervure pour former la bande de liaison souple. The injection mold, generally indicated by 1 in FIG. 1, consists of a first lower mold half 2 and a second upper half mold 3 arranged one above the other and which delimit between them a molding cavity 4 for injection molding the foam support layer with a laminate coating of a plastic facing part. The molding cavity 4 is divided into two compartments 4A and 4B which each have a lower surface 5A and 5B for receiving a paint layer 9A in the compartment 4A, and 9B in the compartment 4B. These layers of paint 9A and 9B are intended, as will be seen later, to achieve the appearance areas of different aspects of the skin of a lamination coating of a plastic facing part. The two compartments 4A and 4B are offset in height, that is to say with respect to a direction perpendicular to the lower surface of the molding cavity, so that the surface 5A of the cavity 4A is above the lower surface 5B of the cavity 4B. The two compartments 4A and 4B are separated by a rib 6 provided in the lower half-mold 2 and shaped to form in the skin of the skin a flexible connecting strip II for bringing two joining lips 12A and 12B of two zones of contact. aspects 10A and 10B of a laminate coating of a facing piece. In line with the rib 6, the upper half mold 3 has a complementary shape of the rib to form the flexible connecting strip.
La nervure 6 de séparation des deux compartiments 4A et 4B comporte une bordure 6A qui délimite le compartiment 4A et sur laquelle est prévue une gorge 7 s'étendant sur toute sa longueur. Du côté du compartiment 4B, la nervure 6 s'étend partiellement au dessus de la bordure 6B du compartiment 4B. Cette bordure 6B comporte une nervure 8 s'étendant sur toute sa longueur. La gorge 7 et la nervure 8 sont dessinées pour avoir des profils complémentaires pouvant s'emboîter. The rib 6 separating the two compartments 4A and 4B has a border 6A which delimits the compartment 4A and on which is provided a groove 7 extending over its entire length. On the side of the compartment 4B, the rib 6 extends partially above the edge 6B of the compartment 4B. This edge 6B has a rib 8 extending over its entire length. The groove 7 and the rib 8 are designed to have complementary profiles that can fit.
Pour réaliser une peau d'habillage d'un revêtement stratifié d'une pièce de parement en matière plastique, comprenant une couche support, comportant au moins deux zones d'aspect adjacentes d'aspects différents et jointives, on commence par recouvrir les surfaces inférieures 5A et 5B des compartiments 4A et 4B de la cavité de moulage 4 de couches de peinture 9A et 9B de couleurs différentes. Ces couleurs sont les couleurs des futures zones d'aspects différents. On peut remarquer que la préparation des surfaces inférieures 5A et 5B des deux compartiments du demi moule inférieure 2, peuvent avoir par exemple des degrés de poli différents, ce qui permet de donner aux zones d'aspects des aspects différents non seulement par la couleur mais également soit par la brillance, soit par la matité, soit par le grain. Une fois que les couches de peinture 9A et 9B sont réalisées dans les compartiments 4A et 4B du moule, on réalise la couche de support en injectant la matière plastique dans la cavité 4. Cette matière plastique est par exemple du polyuréthane. In order to produce a covering skin of a laminated coating of a plastic facing part, comprising a support layer, comprising at least two adjacent appearance zones of different and joined aspects, the lower surfaces are first covered. 5A and 5B of the compartments 4A and 4B of the molding cavity 4 of paint layers 9A and 9B of different colors. These colors are the colors of future zones of different aspects. It may be noted that the preparation of the lower surfaces 5A and 5B of the two compartments of the lower half-mold 2 may, for example, have different degrees of polishing, which makes it possible to give the aspect zones different aspects not only by the color but also by the brilliance, or by the dullness, or by the grain. Once the layers of paint 9A and 9B are made in the compartments 4A and 4B of the mold, the support layer is produced by injecting the plastic into the cavity 4. This plastics material is, for example, polyurethane.
On laisse alors refroidir la pièce puis on la démoule. The part is then allowed to cool and then demolded.
La pièce obtenue est une pièce qui comporte deux parties 10A et 10B qui ont été moulées dans les compartiments 4A et 4B du moule, reliées par une bande de liaison 11 souple qui a été moulée au pourtour de la nervure 6. Les deux parties 10A et 10B sont revêtues sur une de leurs faces, de couches de peinture 9A et 9B, ce qui leur donnent des aspects qui sont différents au moins par la couleur, éventuellement par d'autres caractéristiques. Afin de réaliser la peau d'habillage du revêtement stratifié d'une pièce de parement en matière plastique conforme à l'invention, on rapproche les deux lèvres 12A et 12B des deux parties 10A et 10B de la pièce brute de moulage et on les assemble en faisant coopérer entre elles la nervure 13 de la lèvre 12A et la gorge 14 de la lèvre 12B. La nervure 13 a été formée par la gorge 7 du rebord 6A du moule, et la gorge 14 a été formée par la nervure 8 du rebord 6B du moule. La gorge 14 et la nervure 13 peuvent être formées de façon à se verrouiller l'une dans l'autre. Pour assurer une bonne fixation des deux parties 10A et 10B du revêtement stratifié, on peut en outre coller les deux lèvres 12A et 12B de façon à ce qu'elles restent bien assemblées l'une à l'autre. The part obtained is a part which comprises two parts 10A and 10B which have been molded in the compartments 4A and 4B of the mold, connected by a flexible connecting strip 11 which has been molded around the rib 6. The two parts 10A and 10B are coated on one of their faces, layers of paint 9A and 9B, which give them aspects that are different at least by color, possibly by other characteristics. In order to produce the covering skin of the laminated coating of a plastic facing part according to the invention, the two lips 12A and 12B are brought closer to the two parts 10A and 10B of the molding blank and assembled. by making the rib 13 of the lip 12A and the groove 14 of the lip 12B cooperate with one another. The rib 13 was formed by the groove 7 of the flange 6A of the mold, and the groove 14 was formed by the rib 8 of the flange 6B of the mold. The groove 14 and the rib 13 may be formed to lock into each other. To ensure a good fixing of the two parts 10A and 10B of the laminate coating, the two lips 12A and 12B can also be bonded so that they remain well assembled to one another.
Dans la peau d'habillage obtenue, du fait de la nervure 13 et de la gorge 14, les deux zones d'aspect différentes correspondant aux couches 9A et 9B sont bien positionnées l'une par rapport à l'autre, si bien qu'elles assurent une continuité de la surface de la peau d'habillage, en étant bien jointives. In the cladding skin obtained, because of the rib 13 and the groove 14, the two zones of different appearance corresponding to the layers 9A and 9B are well positioned relative to each other, so that they ensure a continuity of the surface of the skin of dressing, being well joined.
Cette peau d'habillage peut être utilisée pour fabriquer une pièce de parement comprenant un revêtement stratifié constitué d'une peau d'habillage accolée à une couche de mousse de matière plastique. Pour cela, on peut mettre la peau d'habillage dans un moule de moussage, mettre en place éventuellement un insert destiné à former une armature, puis injecter une matière plastique telle que le polyuréthane et la faire mousser dans le moule de moussage. This skin dressing can be used to manufacture a facing part comprising a laminate coating consisting of a skin of skin contiguous to a layer of plastic foam. For this, we can put the dressing skin in a foaming mold, possibly set up an insert for forming a frame, then inject a plastic material such as polyurethane and foam in the foaming mold.
La pièce ainsi obtenue, peut être utilisée notamment comme pièce de parement de l'intérieur d'une automobile par exemple pour réaliser une planche de tableau de bord ou un parement de portière. The piece thus obtained, can be used in particular as a facing part of the interior of an automobile for example to make a dashboard or a door siding.
La peau d'habillage qui vient d'être décrite comporte deux zones d'aspect d'aspects différents. Mais il est clair que l'on peut réaliser par le même procédé des peaux d'habillage comportant plus de deux zones d'aspect d'aspects différents. Pour cela il suffit d'utiliser des moules comportant plus de deux compartiments séparés chacun par des nervures qui sont adaptées pour pouvoir former deux lèvres de jonction reliées par une bande de liaison souple, les lèvres de jonction comportant des nervures et des gorges complémentaires permettant de les verrouiller en position l'une par rapport à l'autre, de façon précise. The skin of dressing that has just been described has two appearance areas of different aspects. But it is clear that one can achieve by the same process skin dressing with more than two appearance areas of different aspects. For this it is sufficient to use molds having more than two compartments each separated by ribs which are adapted to form two connecting lips connected by a flexible connecting strip, the joining lips having ribs and complementary grooves allowing lock them in position relative to each other, precisely.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0408047A FR2873319B1 (en) | 2004-07-20 | 2004-07-20 | METHOD FOR MANUFACTURING A LAMINATED COATING OF A PLASTIC COATING PART |
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| Application Number | Priority Date | Filing Date | Title |
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| FR0408047A FR2873319B1 (en) | 2004-07-20 | 2004-07-20 | METHOD FOR MANUFACTURING A LAMINATED COATING OF A PLASTIC COATING PART |
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| FR2873319A1 true FR2873319A1 (en) | 2006-01-27 |
| FR2873319B1 FR2873319B1 (en) | 2006-11-17 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1932313A1 (en) * | 1969-06-26 | 1971-01-07 | Volkswagenwerk Ag | Plastic housing for movable parts |
| DE2945882A1 (en) * | 1979-11-14 | 1981-05-27 | Daimler-Benz Ag, 7000 Stuttgart | Foam mouldings for vehicles - where parts of different hardness are moulded successively with connecting hinge and assembled together |
| JPS59109332A (en) * | 1982-12-15 | 1984-06-25 | Yoshida Kogyo Kk <Ykk> | Method for molding synthetic resin container |
| JPS59127718A (en) * | 1983-01-07 | 1984-07-23 | Mitsuboshi Belting Ltd | Manufacture of plastic molded item with multi-color surface layer |
| FR2633810A1 (en) * | 1988-07-11 | 1990-01-12 | Patrick International | Method and mould for manufacturing a wear sole of a shoe, by vulcanization, in at least two substantially horizontal layers of different colours - sole thus obtained |
| US5773115A (en) * | 1996-05-01 | 1998-06-30 | Davidson Textron Inc. | Fabrication of multiple color gauge and textured interior auto components |
| US6318783B1 (en) * | 2000-05-23 | 2001-11-20 | Textron Automotive Company, Inc. | Structure for connecting automotive interior trim skin portions |
-
2004
- 2004-07-20 FR FR0408047A patent/FR2873319B1/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1932313A1 (en) * | 1969-06-26 | 1971-01-07 | Volkswagenwerk Ag | Plastic housing for movable parts |
| DE2945882A1 (en) * | 1979-11-14 | 1981-05-27 | Daimler-Benz Ag, 7000 Stuttgart | Foam mouldings for vehicles - where parts of different hardness are moulded successively with connecting hinge and assembled together |
| JPS59109332A (en) * | 1982-12-15 | 1984-06-25 | Yoshida Kogyo Kk <Ykk> | Method for molding synthetic resin container |
| JPS59127718A (en) * | 1983-01-07 | 1984-07-23 | Mitsuboshi Belting Ltd | Manufacture of plastic molded item with multi-color surface layer |
| FR2633810A1 (en) * | 1988-07-11 | 1990-01-12 | Patrick International | Method and mould for manufacturing a wear sole of a shoe, by vulcanization, in at least two substantially horizontal layers of different colours - sole thus obtained |
| US5773115A (en) * | 1996-05-01 | 1998-06-30 | Davidson Textron Inc. | Fabrication of multiple color gauge and textured interior auto components |
| US6318783B1 (en) * | 2000-05-23 | 2001-11-20 | Textron Automotive Company, Inc. | Structure for connecting automotive interior trim skin portions |
Non-Patent Citations (2)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 008, no. 227 (M - 332) 18 October 1984 (1984-10-18) * |
| PATENT ABSTRACTS OF JAPAN vol. 008, no. 253 (M - 339) 20 November 1984 (1984-11-20) * |
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|---|---|
| FR2873319B1 (en) | 2006-11-17 |
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