Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
  • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
• • 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
  • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
  • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
  • B29C44/08—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles using several expanding or moulding steps
• • 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
  • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
  • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
  • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
  • B29C44/1228—Joining preformed parts by the expanding material
  • B29C44/1233—Joining preformed parts by the expanding material the preformed parts being supported during expanding
• • 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
  • B29C45/16—Making multilayered or multicoloured articles
  • B29C45/1671—Making multilayered or multicoloured articles with an insert
• • 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
  • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
  • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
  • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
  • B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
• • 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
  • B29C45/1418—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 the inserts being deformed or preformed, e.g. by the injection pressure
• • 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
  • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
  • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
• • 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
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
  • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness

Definitions

• the invention relates to a method for producing an interior trim part, in particular for the interior of vehicles.
• EP 1 995 034 A2 discloses an injection method and a molding method for producing molded parts.
• the object of the present invention is to provide a method by means of which the costs for the production of interior trim parts with a seemingly higher quality design can be reduced.
• the method according to the invention for producing an interior trim part has in particular the following steps: optionally inserting a foil into a first mold part, wherein the foil extends at least over a cover region of the first mold part,
• Cowling section Removing the first trim portion and combining with a second trim portion, and selectively backfoaming the second trim portion.
• a second trim part section (14) Arranging a second trim part section (14) with a partially provided as a visible side outer side (14 a) and one opposite to this located rear side (14b) such that the trim part section (14) forms on the outside (14a) a first exposed visible side section (15) and a connection section (16) in contact with a connecting section (26) of the foil (29) in sections, between the rear side (14b) of the second trim part section (14) and the first trim part section (12), a cavity (H2) for at least
• Line of weakness corresponds to at least one elevation or depression in the contouring surface of at least one of the mold parts in the mold inserted in the mold, and that in a process step, the area in which forms at least a portion of the elevation or the depression is removed to form an opening in the interior trim part to be manufactured
• a first trim part section is generally produced as an injection molded part in a first step in an injection molding process and, in a second step, this first trim part section is combined with a second trim part section.
• the injection molded part may be made of a polypropylene material.
• Trim part has a visually and haptically appealing material and at least a portion of this support in the form of the first Covering part of the section covers.
• the second trim part section the border of display elements for speed
• the first interior trim part which has a support part and a foil at least partially covering or laminating it, is located in an area which is further in the interior of the occupant area or seating area in the interior of the vehicle in the case of an instrument panel between the first
• the carrier element can be made of a material suitable for stability, on the other hand, the film must be used only for the area that remains particularly visible to the driver of a motor vehicle after installation. This creates a total of considerable and haptic in the
• the corresponding film in particular be designed little reflective and dull, so that the driver's view of the motor vehicle is not limited by reflections. Since the film may be arranged to shine in the visible hard area (particularly the grained area of an interior trim part and is reflective due to the usual and low cost manufacturing processes) past the windshield, ie "hidden” so that the use of PP GF - or LGF material types is possible, which leads to a better stability of the support member and a further reduction of costs.
• An inventive method therefore has essentially two main steps.
• a first step a special injection molding process is performed, while in the second step, a selective foam back is performed.
• the injection molding process is specific in that it does not produce a simple injection-molded part, as is done in known methods, but rather, a film is fixed in the injection-mold before the injection molding process.
• This foil is optimized to be at least later on for the occupants a motor vehicle visible side has a matte surface compared to the bare injection molding material and is particularly non-reflective.
• this film has an improved contact behavior in terms of its feel. This improved contact behavior relates, for example, to the contact resistance, the contact temperature or the surface condition.
• the inserted film improves both the appearance and the feel of the first trim part section produced by the injection molding process on the visible side after its subsequent installation, for example as an instrument panel. It is essential that the injection molding process is carried out such that already defined when inserting the film in the first mold part, which side of the film is later on the visible side. This is ensured by the fact that the film is back-injected exclusively, so only the volume between the film and the second mold part is filled with injection molding material.
• Cladding section as semi-finished or in other words intermediate product available, which has a support part of injection molding material and an existing at least in some areas cover part in the form of the film.
• the subregions, ie the covering regions, over which the film is stretched in particular those regions which are visible to the occupants of such a motor vehicle in combination with the second trim part section after installation, for example as an instrument panel in a motor vehicle.
• the first and the second trim part section is advantageously combined in such a way that the second trim part section just covers those areas which are not covered by the film.
• Covering portion covered areas of the first trim part section overlap, so that even at the interfaces no clear view of the
• the selective foaming of the second trim part section is advantageously carried out through the first trim part section.
• openings are provided in the first trim part section, for example, through which selective backfoaming can take place.
• Foaming is to improve the feel of the second panel section for the user.
• the foam backing makes it possible for the second
• Trim part section gets a very soft feel.
• the combination of the two steps according to the invention thus produces an optimized interior trim part, both in terms of appearance and in terms of feel, which has optimizations both with regard to the first trim part section and with respect to the second trim part section.
• the overall result for the user is improved
• Interior trim part without the two individual steps of the interior trim part on the visible side are to be considered. Rather, the entire interior trim part for the occupants of a motor vehicle in optical and haptic terms has a high quality.
• An inventive method can be further developed to the effect that the film has a haptically and / or optically optimized surface at least on the first side facing the first mold part.
• optimization means that when the user touches the surface, a valuable feeling or a high-quality impression is created.
• This valence relates in particular to the material quality, which should differ significantly from classic smooth plastic. It can be formed, for example, by an improved contact temperature lower or higher surface roughness or the surface resistance characteristic.
• optical optimization is meant, for example, a surface which produces a matt or a mirror-free visual impression.
• Such a matte surface has, in addition to its high-quality impression on the user, the further advantage that it reflects outside sunlight into the area of the driver avoids and thus additionally increases the security in the management of a motor vehicle.
• Instrument panel is installed, prevails.
• a mask or stencil must be used to protect the area that will later be visible in the vehicle from degradation by flaming.
• the further advantage is that relatively little backfoaming material has to be used. In this respect, it is sufficient to use the minimal required Deutschenbulummenge for the desired feel, which is the pressure of the user on the second
• the film is pressed against the first mold part by the injection molding process, so that at least the surface of the first side of the film facing this mold part is plastically deformed.
• the method according to the invention is further optimized with regard to the injection molding step.
• the final surface of the film on the visible side is thus produced only by injection molding.
• the surface generation is an integral part of the step of the injection molding process.
• Injection molding process constructed pressure on the back, so the second side of the film, just this film is sufficiently strong pressed into the first mold part, so that there existing negative surface pattern is imprinted into the surface of the first side of the film.
• This surface can be designed differently. For example, it is possible to adapt the surface structure of scarred leather, so that in addition to a matte and glare-free appearance, the film also radiates a high visual quality. Other high-quality surface structures, such as brushed metal, carbon structures or other technical structures are possible here.
• the plastic deformation is generated by a first mold part, the negative Surface texture depth between 10% and 30% is greater than the positive surface texture depth of the first trim part section to be generated.
• Panel section is not produced in high quality by the injection molding process.
• the negative surface structure In order to ensure that the surface structure, in particular with regard to the surface texture depth, such as, for example, the grain depth, has the desired quality and sharpness, the negative surface structure must be correspondingly coarser. It has surprisingly been found that in film thicknesses of 0.2 mm to 0.7 mm magnification of the negative surface structure of the first mold part by 10% to 30% compensates for the film and a
• PP LGF propylene with long fiber glass fibers (> 5 mm).
• glass fiber reinforced polypropylene for the first trim part section by injection molding is only possible by a method according to the invention. Such materials are very unsightly in appearance and perceived by a user as inferior. At the same time, however, they achieve high stability with regard to mechanical loads with relatively little use of material.
• the film has a layer of TPO at least on the first side, which faces the first mold part.
• TPO is to be understood a thermoplastic, in particular a thermoplastic based on olefin.
• the use of thermoplastics has the advantage that when performing the injection molding process by the necessary for the injection molding process
• Injection material energy is introduced in the form of heat in the mold parts.
• the injection molding material displaces volume and thus presses the film against the lower mold part, can be carried out at least in partial areas a partial melting or softening of the film on the introduced energy and the thermoplastic design of the film. This softening facilitates the plastic deformation of the film surface to produce a Structure surface on the visible side of the film.
• Injection molding process especially after cooling of the injection molding material, also cools the mold and the film surface.
• the surface structure of the film indirectly produced by the injection molding process also cools down and remains fixed for the temperature ranges during use and at least plastically unchangeable.
• the film is fixed in the first mold part before the mold is closed.
• a fixation is essential that on the one hand binds the film sufficiently strong to a place, on the other hand leaves enough space that the film can move to the final position.
• This final position is defined by the lower mold part into which the inserted film is moved, in particular pressed, by the injection molding material flowing in during the injection molding process.
• the fixation is too strong, there is a risk that the film stretches and thus different film thicknesses arise or that the film even breaks, which would lead to the Committee of the resulting first trim section.
• the fixation in the inventive method can for the films in
• the fixing agents in the form of adhesive or cohesive adhesives.
• adhesives are particularly useful when it comes to complex geometries and the film must be fixed at a variety of locations.
• the fixing by means of an adhesive is designed such that the adhesive after completion of the injection molding process readily from the first
• Fairing section, in particular of the film can be removed. It is also advantageous if the adhesives are arranged so that they
• fixing means are provided in the form of clamping means.
• Such Clamping means may be, for example, mechanical pins or brackets for fixing the position of the film.
• Mechanical pins can correspond, for example, with recesses or holes in the film, while clips on the edge of the film can clamp them. It is crucial that neither the holes nor the brackets affect the final shape of the first trim section and the surface structure of the film.
• the fixing means are arranged in the form of clamping means outside the visible areas after the manufacture of the interior trim part. In particular, overlapping of the foil is possible, with the clamping means being arranged in the overlapping areas in order to be able to possibly remove damage from the clamping means together with these areas later. Also, a fixation by means of negative pressure is possible, wherein the fixing means are provided as suction holes for the film, which define the film in a defined position.
• the film is provided with cutouts which correspond to elevations or depressions in at least one of the mold parts when the film is inserted into the mold.
• fixtures or openings for loudspeakers or ventilation ducts are often provided in the area in which the interior trim part can be used, on instrument panels of motor vehicles.
• the ventilation fan for the front windshield usually has openings in just this area.
• these openings are provided in the form of recesses or elevations in the two mold parts, so that in these areas either only very thin, designed as predetermined breaking points material bridges remain or these areas are not ejected.
• the film is provided in these areas with similar cutouts, which brings the further advantage that in the provision of
• this survey may additionally have the function of a fixing agent for the film.
• air ducts are provided in the first mold part to be able to move in the volume create a negative pressure between the film and the first mold part. This has the advantage that the drape when making the first
• Trim part section is further minimized or even completely prevented.
• the first film is thus sucked by the negative pressure on the one hand against the first mold part, and on the other hand pressed from the back by inflowing injection molding material against the first side.
• Another object of the present invention is a device for
• Such a device has corresponding elements for the necessary steps.
• an injection mold with at least two mold parts is necessary and a second device for carrying out the selective Schum suitss.
• the first mold part is designed such that radii are provided exclusively greater than or equal to 0.5 mm.
• the provision of exclusively such large radii has the advantage that, on the one hand, the demolding of the first trim part section from the first mold part becomes easier, and on the other hand, the risk of wrinkling during the injection molding process with respect to the film is reduced.
• Fig. 1 is a perspective view of an embodiment of a
• inventive manufacturing device having a first and a second mold part.
• Fig. 2 is a sectional view of another embodiment of the first mold part of the manufacturing device according to the invention with
• Fig. 3 is a sectional view of the first mold part in the
• FIG. 4 shows the first and the second mold part of the manufacturing device according to the invention in the embodiments and the sectional view of Figure 3 showing a further part step of
• FIG. 5 shows the first and the second mold part of the manufacturing device according to the invention in the embodiments and the sectional view of Figure 3 showing a further substep of
• FIG. 6 is a sectional view of the first and the second mold part of the manufacturing device according to the invention in an analogous manner along the line 2-2 of Figure 1 showing a further substep of the method according to the invention
• FIG. 7 shows a partial step cladding section removed from the molds
• Fig. 11 shows an alternative embodiment of a device according to the invention
• FIG. 12 shows a further step to the method according to FIG. 11.
• Fig. 1 shows a part of a first embodiment of the invention
• this apparatus 50 comprises a mold or mold 30 consisting of two part molds or mold parts 32 and 34.
• the second mold part 34 is exemplified as an upper mold part and the first mold part 32 is exemplified as a lower mold part.
• the lower mold part 32 may in particular be fastened on a tool fastening device and thus be arranged fixed.
• the lower mold part 32 has in particular a first contouring
• the contouring surface 36 of the lower mold part 32 optionally has at least one elevation and / or depression, with which or with which corresponding complementary partial shapes of the component to be produced are to be formed.
• a local, along the generally curved longitudinal extent L or main direction of the mold displaceable coordinate system with a depth direction TR and a longitudinal direction LR is entered as a coordinate axes in the figure. This depth direction TR and one
• Longitudinal direction LR as coordinate axes can be applied ebenaos for the produced interior trim part, the shape of which at least in the
• FIGS. 2 to 5 show a section through the respective mold parts 32, 34 transversely and in particular vertically to the longitudinal direction L or LR.
• the mold parts 32 and 34 of the mold 30 according to the embodiment in Fig. 1 serve to form an instrument panel for a motor vehicle.
• the mold 30 shows only a part of the trim part section to be created, or
• This part is in particular the area which later comes to rest on the abutting edge between instrument panel and front windshield. This area is just the one that should be covered with a foil.
• the lower first mold part 32 is formed with two projections 40 having a substantially oval cross-section.
• the first mold part 32 shown in FIG. 2 has two depressions 40 which correspond to the depressions shown in FIG. 1 and of which only one recess 40 is shown due to the sectional view. With these recesses 40 are formed during the injection molding complementary shaped elevations in the produced injection-molded part or the inner lining part to be produced.
• the first contouring surface 36 of the first mold part 32 may alternatively or additionally, in particular at least one elevation having a complementary shaped recess in
• FIG. 1 shows the mold 30 in an exploded view.
• the second mold 34 is placed on the first mold 32 and the mold 30 is closed.
• Fig. 2 shows the first mold part 32, still open, so without a second
• Mold tool part 34 In this first mold part 32, a film 20 is inserted.
• the first mold part 32 in this case has a recess 40, which with
• Elevations on the injection-molded part to be produced corresponds or generates these.
• care must be taken that the film 20 covers all the cover areas 36.
• the film 20 has a protrusion beyond the first mold part 32 on all areas. This is not necessary with every method, but advantageous.
• the film 20 is fixed in the first mold part 32, so that they can no longer weaWlich move with respect to their relative position to the first mold part 32.
• the only freedom of movement remains a movement of the film 20 in the direction of the mold part 32, that is to say an application of the film 20 to the first mold part 32.
• Fig. 3 shows the next step in this method. After inserted film 20, a second mold part 34 is prepared, which is placed on the first mold part 32 with inserted film 20. During the Aufsetzvorgangs can be seen in Fig. 3 already that the second mold part 34 material channels 35 for the
• Fig. 4 the mold 30 is shown in the closed state.
• the first mold part 32 and the second mold part 34 are closed and substantially resting on each other in their edge regions.
• the bearing surfaces are separated in the cover region 36 by the interposed foil 20.
• Fig. 5 shows the beginning of the injection molding process.
• material 60 is passed through the second mold part 34.
• material 60 exits.
• the exiting material 60 is subject to a certain injection molding pressure, which, depending on the process and the desired process speed,
• Process temperature and choice of materials may vary. Subsequent to the situation illustrated in FIG. 5, more and more liquid material 60 flows out of the openings of the material channels 35 of the second mold part 34 and fills the volume between the film 20 and the mold part 34 more and more.
• the end of this injection molding process is shown in FIG.
• the volume between the film 20 and mold part 34 is completely filled with material.
• the material channel 35 is still filled with material 60.
• the film 20 has been completely applied by the pressure of the inflowing material 60 to the lower mold part 32, in particular, the recess 40 has filled.
• the first mold part 32 has, with the cover region with the film 20, a surface structure which forms a surface structure by plastic deformation on the film 20. After cooling the entire system, the two mold parts can be removed 32 and 34, the
• Panel section 12 are demoulded, so to speak.
• FIG. 7 shows the first trim part section 12 in the demoulded state.
• This is cooled injection-molded material 60, which is completely covered by the film 20 on the side visible in FIG. 7 as the underside.
• the film 20 still has the projections 24 which, as can be seen in FIG. 6, have overhanged the mold 30.
• an optional post-processing step can take place.
• This optional post-processing step serves to remove the projections 24 along the dashed lines shown in FIG. 7, for example to cut them off.
• the result of this optional post-processing step is a trim portion 12, as shown in FIG.
• FIGS. 9 and 10 each show an interior trim part 10, FIG. 9 a
• FIG. 10 shows a further embodiment of the interior trim part according to the invention with a film 20. It can be seen that FIG. 10 shows an interior trim part 10 with fundamentally similar configurations as in FIG. 9, but the first trim part section 12 in FIG Fig. 10 is visible only on the film 20. The structure, and the material of the first trim part section 12 is invisible to the user from the visible side S. To the invisibility even further to improve, the second trim part section 14 is so to the first
• Fitted trim portion 12 pushed so that the film 20 intersects with the second trim part section 14, so to speak. This overlap causes an occupant of a motor vehicle to see exclusively the second trim part section 14 and the film 20 from the visible side S forth.
• the second trim part section 14 and the raw material of the first trim part section 12 was visible.
• FIG. 10 shows a second step in a method according to the invention, specifically the selective backfoaming of the second trim part section.
• rear foam material is introduced into the region between the first trim part section and the second trim part section.
• the second trim part section 14 has an outer side 14a provided in sections as a visible side and an opposite thereto
• the first trim part section 12 has a partially provided as a visible side outer side 12a and opposite to this located back 12b.
• the trim part sections 12, 14 are in a corresponding embodiment of the tool 30 and the
• contour-forming surfaces formed and arranged such that the second
• Visible side portion 15 and located with a terminal portion 26 of the film 20 in contact terminal portion 16 is formed and partially between the back 14b of the second panel section 14 and the first panel section 12 a cavity H2 for at least partially backfolding and joining the first and the second panel section 12, 14 is formed.
• the preferably provided Schumumraum HR goes toward the connection region 16, 26 of the trim part sections 12, 14th
• the first trim part 12 has a plane extending transversely to the longitudinal direction L and / or depth TR
• step depth is in this case formed by the connecting portion 26 of the film and the corresponding section of the first covering section 12 lying underneath it. This results in a substantially uniform contour without any special or small (i.e., in particular less than 2 mm) steps between the
• a transition line 27 is also defined on the foil and a transition line 17 on the second trim part 14.
• FIGS. 11 and 12 show an alternative method with regard to the injection molding step.
• the first mold part 32 additionally air channels 33, which open into the volume between the film 20 and the first mold part 32.
• the film 20 is doing on its first side 22, which later to the visible side of the S
• Interior trim part 10 shows, almost sucked.
• FIG. 12 it is easy to see how the suction system sucks the film 20 against the first mold part 32 even before the volume has been completely filled between the film 20 and the second mold part 34. In this way, a wrinkle-free application of the film 20 is ensured at the first mold part 32 and at the same time, the material 60 through the material channels 35 of the second mold part 34 can be introduced much slower and, above all, with lower pressure.

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

Applications Claiming Priority (2)

Publications (1)

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Family Cites Families (38)

• 2010
  • 2010-01-19 DE DE102010005009A patent/DE102010005009A1/de not_active Ceased
• 2011
  • 2011-01-19 EP EP11701748A patent/EP2525956A1/de not_active Withdrawn
  • 2011-01-19 WO PCT/EP2011/000206 patent/WO2011088995A1/de active Application Filing
  • 2011-01-19 JP JP2012549289A patent/JP5766211B2/ja not_active Expired - Fee Related
  • 2011-01-19 US US13/522,989 patent/US9493124B2/en active Active

Non-Patent Citations (1)

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