EP4271555A1 - Formteil mit einer durchleuchtbaren oberflächenschicht und verfahren zum herstellen eines formteils mit einer durchleuchtbaren oberflächenschicht - Google Patents
Formteil mit einer durchleuchtbaren oberflächenschicht und verfahren zum herstellen eines formteils mit einer durchleuchtbaren oberflächenschichtInfo
- Publication number
- EP4271555A1 EP4271555A1 EP21745920.5A EP21745920A EP4271555A1 EP 4271555 A1 EP4271555 A1 EP 4271555A1 EP 21745920 A EP21745920 A EP 21745920A EP 4271555 A1 EP4271555 A1 EP 4271555A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- functional film
- surface layer
- layer
- translucent
- plastic
- 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.)
- Pending
Links
- 239000002344 surface layer Substances 0.000 title claims abstract description 83
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000000465 moulding Methods 0.000 title claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 85
- 229920003023 plastic Polymers 0.000 claims description 56
- 239000004033 plastic Substances 0.000 claims description 54
- 238000000034 method Methods 0.000 claims description 30
- 238000001746 injection moulding Methods 0.000 claims description 29
- 239000004753 textile Substances 0.000 claims description 29
- 239000010985 leather Substances 0.000 claims description 22
- 239000011888 foil Substances 0.000 claims description 14
- 239000002023 wood Substances 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000013067 intermediate product Substances 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 6
- 239000002346 layers by function Substances 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000000638 solvent extraction Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 19
- 239000004744 fabric Substances 0.000 description 14
- 238000005286 illumination Methods 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 238000003475 lamination Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- -1 for example Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000010784 textile waste Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- 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
- 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
- B29C45/14196—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 the inserts being positioned around an edge of the injected part
-
- 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
- B29C45/14221—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 by tools, e.g. cutting means
-
- 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
- B29C45/1615—The materials being injected at different moulding stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K37/00—Dashboards
- B60K37/20—Dashboard panels
-
- 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
- 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
- B29C45/14196—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 the inserts being positioned around an edge of the injected part
- B29C2045/14204—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 the inserts being positioned around an edge of the injected part the edges formed by an intermediate mould part
-
- 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
- B29C2045/14532—Joining articles or parts of a single article injecting between two sheets
-
- 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
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/20—Optical features of instruments
- B60K2360/27—Optical features of instruments using semi-transparent optical elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/20—Optical features of instruments
- B60K2360/33—Illumination features
- B60K2360/339—Translucent dashboard skins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/50—Mounting arrangements
- B60Q3/54—Lighting devices embedded in interior trim, e.g. in roof liners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
- B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
- B60Q3/64—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides for a single lighting device
-
- 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
- B60R2013/0287—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners integrating other functions or accessories
Definitions
- Shaped part with a translucent surface layer and method for producing a shaped part with a translucent surface layer
- a molded part with a translucent textile, leather, wooden or metallic layer and a method for producing a molded part with a translucent textile, leather, wooden or metallic layer are described.
- Such molded parts can be found, for example, in the vehicle interior and form decorative elements, which can also have functional and display elements.
- visible surfaces are often provided with decorative elements in order to create an attractive and pleasant ambience.
- decorative elements for example, specially treated plastics are used, which imitate the impression of high-quality surfaces.
- veneers for surfaces made of wood, leather and fabric are often difficult to implement lighting and to provide operating elements that are integrated in or under the visible surface. Difficulties exist both in the case of a planar illumination of materials and in the case of symbols that can be illuminated.
- EP 3573 043 A2 discloses a component and a method for producing such a component, which has a base part with a front side and a back side, with a cover layer made of a lacquer being applied to the front side thereof and forming part of a visible side of the component. An additional part that is in contact with the cover layer is completely covered all around the edge.
- the base part has openings which extend from the rear to the front of the base part, with the additional part forming a cover element for sealingly covering the openings, which are completely covered by the additional part.
- DE 10009 304 A1 discloses a device for producing an injection molded part provided with a textile on one side, which has a shell-shaped, three-dimensional surface structure with an edge running in space, with a textile cutting unit for cutting a textile cutting to size, an actuating device for receiving the textile cutting, an injection molding unit for Injection molding of the textile blank with plastic and a processing unit for post-processing of the injection molded part.
- a textile cutting unit for cutting a textile cutting to size
- an actuating device for receiving the textile cutting
- an injection molding unit for Injection molding of the textile blank with plastic
- a processing unit for post-processing of the injection molded part.
- Textile cutting unit has cutting means for a shape contour cut adapted to the surface structure and/or the edge contour of the finished injection molded part, that the processing unit is equipped with a holding device for a torsion-free and clear positioning and fixing of the injection molded part in its target geometry during the Post-processing is provided, and that the processing unit includes a trimming device for fully automatic trimming of the edge contour of the injection molded part.
- the object is to provide a solution for providing molded parts with textile surfaces that can be illuminated or transilluminated, with rapid, simple and inexpensive production being achieved and such a molded part being provided that is just as simple and inexpensive.
- the task is to enable illuminated structures, symbols and/or signs on textile surfaces.
- a molded part with a translucent surface layer on a visible side having at least one functional film which has at least one translucent area, a surface layer applied to the functional film on the visible side of the molded part, the surface layer being covered by a textile, leather or Imitation leather, wood veneer or laminate or formed from a metal foil, a translucent layer that is sprayed onto the back of the functional layer and serves as a diffuser for incident light, the back of the functional layer forming the side which is opposite the surface layer, and wherein a lateral foreclosure of the translucent layer by bent areas of the functional film and the surface layer is realized, with the fold formed in this way providing a light barrier that prevents light from escaping to the side, and with a light guide being arranged on the underside of the translucent layer, into which light can be introduced via a light source, so that the light guide as Diffuser trained translucent layer for illuminating the at least one illuminable area can be illuminated over the entire surface.
- the surface layer made of a textile e.g. fabric, woven or knitted fabric made of natural and/or synthetic materials, leather or imitation leather, wood veneer or laminate or metal foil (e.g. aluminium, copper, gold, etc.) and the functional film as a light blocker means that the number of components required to provide the molded part is kept to a minimum.
- the at least one translucent area of the functional film forms the structure, the sign and/or pattern that is visible through the translucent layer.
- the foil is used as a design element. Illumination takes place from below into the molded part via the translucent layer designed as a diffuser.
- the structure described has a very small height and also made it possible to display symbols, characters and/or patterns on a surface layer.
- the above-mentioned object is also achieved by a molded part with a surface layer that can be transilluminated on a visible side, having at least one functional film that has a reflection-enabling structure and at least one illuminant, with the reflection-enabling structure radiating from the side through the at least one illuminant visible side of the molded part, which at least one light source is integrated into the functional film, a carrier layer made of plastic sprayed onto the back of the functional film, with the back of the functional film forming the side that is opposite the visible side of the molded part, a surface layer that can be transilluminated at least in sections, which is located on the visible side of the molded part, the surface layer being formed by a textile, leather or imitation leather, wood veneer or laminate or a metal foil, a translucent connecting layer, d ie is arranged between the functional film and the surface layer and is connected to both
- the molded part is illuminated by lighting means integrated into the functional film, such as LEDs, which are physically connected to the component by overmolding with plastic.
- the functional film has a reflection-enabling structure. Such a structure brings about a reflection upwards in the direction of the visible side by introducing light via at least one laterally arranged light source. In the remaining part of the functional film, the light can spread through the film without radiating in the direction of the visible side. In this way, additional area lighting of the functional film can also be achieved, which, depending on the control and the design of the illuminant, also enables area (background) lighting through the surface layer.
- the bent areas of the surface layer seal off the sides, in particular the transilluminatable connection layer.
- the soft plastic component is applied as a (circumferential) edge on the underside of the functional film and also blocks off light.
- the use of a soft plastic component also makes it possible to prevent disturbing noises caused by vibrations in the vehicle, because the soft plastic component serves as a damping element.
- the bent areas are held on the underside of the carrier layer by the soft plastic component, which is sprayed onto the bent areas from below.
- the molded part As stated above, only a few components are required for the molded part, the structure having a very small height, and thus the molded part can be used for various applications.
- the use of Surface layers made of, for example, textile, wood, leather or metallic materials as a decorative layer offer a special visual impression on the one hand and on the other hand reduce the weight of the molded part by using less material.
- textiles for the textile layers for example, fabrics can be used which include knitted or woven fabrics.
- Technical textiles can also be used as textiles for the textile layers.
- Fibers or filaments of the textiles can be made of natural or artificial fibers or filaments. Cotton and synthetically manufactured fibers should be mentioned here, for example.
- threads or filaments that can be illuminated for example made of glass or plastic fibers, can be woven in or used as (decorative) seams.
- the molded parts mentioned are particularly suitable for production in an injection molding process, whereby molded parts can be produced in large quantities and inexpensively, which ensure reproducible results with regard to the position and design of the structures, patterns and symbols as well as the haptics and optics of the surface.
- the functional film can have at least one functional element for operating and/or controlling at least one component, which can be connected to the functional film and the at least one functional element via a signal connection.
- a functional film can, for example, in addition to illuminable structures, signs and/or symbols, control elements in the form of capacitive or inductive or have resistively effective controls.
- the functional film is then connected to the controllable components and/or a control unit via an interface, so that touching or pressing on the surface in the area of the control panel causes a corresponding reaction.
- the control panels can be displayed using the lightable areas.
- displays can be shown through a surface layer for the operation of the controllable components and about states, for example the controllable components and/or (environmental) parameters.
- the process steps can be carried out in an injection molding process, for which purpose the functional film in a Cavity of a mold half of an injection mold is inserted.
- the surface layer can be connected to the functional film before or after the functional film is back-injected.
- the textile can completely cover the surface of the functional film on the visible side, so that the light barrier is formed not only by the functional film but also by the surface layer laminated on before or afterward.
- the surface layers that extend completely over the bent area have the same appearance and feel on the sides as on the visible side of the molded part, so that there are no other layers when the molded parts are installed or components can be seen and/or felt.
- the functional film After inserting the functional film or a combination of functional film and surface layer, the functional film is back-injected with a translucent plastic.
- the plastic serves as a diffuser for light introduced into the molded part from below, so that either a planar illumination is achieved or structures, patterns and/or characters are imaged, whereby the plastic can only be transilluminated in the area of the characters, symbols and/or structures.
- methods are known from the prior art for providing a masking.
- the film can also be designed in such a way that it has cutouts in the area of the structures, characters and/or symbols.
- the film itself does not have to be transparent, so even with Use of a transparent plastic, only the corresponding areas can be transilluminated.
- the functional film and/or the surface layer can be bent over using ejectors or slides or a handling device on the injection molding machine.
- the injection molding tool has a further cavity for bending over the corresponding areas.
- the back-injected component can be sucked in and/or displaced, with the areas on the wall of the mold moving and being bent over.
- the above-mentioned object is also achieved by a method for producing a molded part with a translucent surface layer on a visible side in a multi-component injection molding method in a one-shot process without subsequent processes, having the following method steps:
- a functional film Inserting a functional film into a cavity of a mold half of an injection molding tool, the functional film having a reflection-enabling structure and at least one light source,
- a surface layer that can be transilluminated at least in sections into the second cavity, the surface layer having a larger surface area than the first intermediate product, the surface layer being covered by a textile, leather or imitation leather, wood veneer or laminate or formed from a metal foil,
- the molded part is produced in an injection molding process, with no further processing being required. This results in both large financial and time savings.
- a molded part with a very small height and a very low weight is provided.
- the functional film can reproduce the reflection-generating structure by embossing, printing or similar.
- connection between the functional film and the surface layer takes place via the second plastic, which, in addition to a chemical bond and/or material connection with the functional film and the surface layer, must ensure radiation through.
- the surface layer and the functional film can be placed in the cavities, clamped or sucked in by vacuum.
- a transparent or a translucent plastic can be used for the second plastic.
- the visibility of the corresponding signs, symbols or structures that are produced by the reflection-generating structures can thus be adjusted.
- the fixation of the fold by the third plastic can be formed from a soft component.
- the advantages with regard to the use of a soft component for the third plastic have already been explained above.
- the protruding areas of the surface layer can be bent over, analogously to the method described above, in a third cavity or via slides in the injection molding tool or a handling device on the injection molding machine.
- the entire production of the molded part can thus be realized in one injection molding tool.
- Design elements can also be depicted in a surface layer, so that there is no need to introduce structures for this into the functional film.
- lighting can also be suppressed down to the perforated areas.
- the solutions described here enable a precise representation of x-rayed elements on laminated screens/decorative screens or molded parts.
- the production of a transilluminated surface layer is achieved in a "one-shot" process without subsequent processes.
- the soft/hard lamination in the tool can also be used to integrate electronics and light.
- the functional film can have corresponding electronic and/or light-emitting elements or be designed accordingly to form the structures or light-conducting fibers can be woven into a textile surface layer.
- FIG. 1 shows a schematic representation of a molded part in a first embodiment
- FIG. 2 different stages of the molded part according to FIG. 1 during production
- FIG. 3 shows a schematic representation of a molded part in a second embodiment
- FIG. 4 different stages of the molded part according to FIG. 3 during production.
- elements provided with the same reference numbers correspond essentially to one another, unless otherwise indicated.
- the reference symbols are not repeated for all elements that have already been introduced and shown, provided that the elements themselves and their function have already been described or are known to a person skilled in the art.
- the versions of moldings 100 and 200 shown in Figs. 1-4 are designed as decorative elements for the interior of motor vehicles and each have an IML functional film 110 or 210, which both to represent characters or symbols or structures by a Fabric layer 130 or 230 are provided as well as operating commands for controlling devices not shown in the vehicle can receive.
- full-area illumination and/or only illumination in certain areas can be achieved to display patterns, structures and/or characters or symbols.
- the exemplary embodiments relate to the use of fabric layers 130 or 230 as surface layers, without however having a limiting effect. Other materials already mentioned can also be used as the surface layer.
- FIG. 1 shows a schematic representation of a molded part 100 in a first embodiment.
- the molded part 100 has a material layer 130 on the visible side 102, which is connected to a functional film 110 via a light guide layer 140 made of a transparent or translucent plastic.
- the functional film 110 is connected to a carrier layer 120 made of plastic on its rear side.
- the layer 120 is not transilluminated and can therefore consist of non-translucent plastic. If the layer 120 is made of a light (white) plastic, this can increase the light yield in the direction of the visible side 102 through reflection. A dark plastic for the layer 120, on the other hand, leads to better light shielding at the bottom.
- the functional film 110 has light sources in the form of LEDs, with the actuation and the signal and power supply taking place via an electrical connection through the carrier layer 120 or on its side.
- the carrier layer 120 can have a corresponding opening for accommodating connecting lines.
- the electrical connection is made on a side area of the carrier layer 120 towards the contacting of the corresponding interfaces of the functional film 110.
- the functional film 110 has areas that are embossed or deformed in relation to the remaining area of the functional film 110 such that a defined light refraction or deflection in the direction of the visible side 102 occurs when light is introduced from the side.
- the lateral light input is achieved via LEDs that are integrated in the functional film 110 are.
- the reflection-generating structures created by the deformed areas form signs, symbols or patterns. Illumination of these by the LEDs generates a corresponding image through the layer of material 130 on the visible side 102 .
- the material layer 130 can be transilluminated.
- the carrier layer 120 has a smaller areal extent than the functional film 110 and the light guide layer 140 .
- the material layer 130 has an even greater areal extent than the functional film 110 and the light guide layer 140 and is bent over on the sides, the bent sections on the underside of the functional film 110 being held by a peripheral edge made of a soft plastic component 150.
- the soft component 150 is preferably made of a black plastic, so that light is blocked off.
- the soft component 150 acts as a damper, so that no rattling or other disturbing noises can occur in the installed state, for example due to vibrations when the vehicle is in operation.
- the soft component 150 serves to hold the bent areas of the fabric layer 130 on the underside of the functional layer 110 .
- the soft component 150 can be materially and/or positively connected to the carrier layer 120 at least in regions.
- a "hard component” e.g. ABS plastic, can also be used.
- FIG. 2 shows various stages of the molded part 100 according to FIG. 1 during manufacture.
- the molded part 100 is manufactured in an injection molding process using an injection molding tool.
- the functional film 110 is provided and placed in a first cavity of an injection molding tool.
- the functional film 110 can be sucked into it in order to assume a defined position or 2h to 3-dimensional deformation, which is retained during production (FIG. 2a).
- the back of the functional film 110 which is opposite the visible side 102 of the molded part 100, is back-injected with a plastic to form the carrier layer 120, which receptacles or connection features (clips, latching hooks, screw,
- the material layer 130 is then introduced into a second cavity of the injection molding tool and transparent or translucent plastic is injected between the functional film 110 and the material layer 130, with the light guide layer 140 being formed.
- the light guide layer 140 enters into a chemical bond and/or a positive connection with the functional film 110 and the material layer 130 .
- the fabric layer 130 is bent over until the bent areas come into contact with the back of the functional layer 110 .
- the areas of the material layer 130 are bent over in a third cavity of the injection molding tool. Alternatively, this can be done using ejectors or slides in the mold or using a handling device on the injection molding machine.
- a third plastic 150 is then injected onto the underside, which forms a peripheral edge that holds the bent areas against the underside of the functional film 110 .
- the third plastic 150 can be materially and/or positively connected to the carrier layer at least in regions. Designed as a soft component, for example a TPE, the third plastic 150 also serves to reduce disruptive noises such as rattling or creaking.
- the manufactured molding 100 can be removed from the tool and is ready for installation in a vehicle.
- FIG. 3 shows a schematic representation of a molded part 200 in a second embodiment.
- the molded part 200 differs from the molded part 100 in that a scattering layer 240 made of a transparent or translucent plastic is injection molded onto the back of a functional film 210, which is bent around the scattering layer 240 like a layer of material 230.
- a light guide 260 is arranged on the underside of the molded part 200 and can be connected to the scattering layer 240 or arranged at a distance therefrom.
- the light guide 260 is sprayed onto the underside of the scattering layer 240, even if shown differently.
- Light can be introduced into the light guide 260 via an LED or another light source, which light thus illuminates the scattering layer 240 over the entire surface and leads to an illumination of the areas 212 .
- the areas 212 of Functional foil 210 are translucent and thus cause the fabric layer 130 to be illuminated in the areas 212.
- the transmissive areas 212 later image the desired translucent design through the fabric of the fabric layer 230 .
- the cover layer or fabric layer 230 is a fabric/technical textile.
- the molded part 200 can be illuminated by means of a separate light guide 260 .
- FIG. 4 shows various stages of the molded part 200 according to FIG. 3 during manufacture.
- the material layer 230 is connected to the functional film 210 in a first step (FIG. 4a).
- the so-called lamination can be done in different ways. It is important that the material layer 230 forms a connection with the functional film 210 .
- the functional film 210 is then back-injected with a translucent or transparent plastic to form the scattering layer 240 (FIG. 4b).
- the film 210 and the laminated layer of material 230 are bent over within the tool, whereby a light barrier for the scattering layer 240 is achieved.
- An optional further process step, not shown, is based on the process step from FIG Fixed areas and also has dampening and / or light-blocking properties.
- the light guide 260 is applied from below to the scattering layer 240 (FIG. 4d).
- first plastic 130 surface layer material layer 140 light guide layer
- second plastic 150 soft component third plastic 200 molded part 202 visible side 210 functional film 212 area 230 surface layer, material layer 240 scattering layer
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020117815.8A DE102020117815A1 (de) | 2020-07-07 | 2020-07-07 | Formteil mit einer durchleuchtbaren Oberflächenschicht und Verfahren zum Herstellen eines Formteils mit einer durchleuchtbaren Oberflächenschicht |
PCT/EP2021/068405 WO2022008389A1 (de) | 2020-07-07 | 2021-07-02 | Formteil mit einer durchleuchtbaren oberflächenschicht und verfahren zum herstellen eines formteils mit einer durchleuchtbaren oberflächenschicht |
Publications (1)
Publication Number | Publication Date |
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EP4271555A1 true EP4271555A1 (de) | 2023-11-08 |
Family
ID=77050962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP21745920.5A Pending EP4271555A1 (de) | 2020-07-07 | 2021-07-02 | Formteil mit einer durchleuchtbaren oberflächenschicht und verfahren zum herstellen eines formteils mit einer durchleuchtbaren oberflächenschicht |
Country Status (5)
Country | Link |
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US (1) | US20230294341A1 (de) |
EP (1) | EP4271555A1 (de) |
CN (1) | CN115916514A (de) |
DE (1) | DE102020117815A1 (de) |
WO (1) | WO2022008389A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2023187843A1 (en) * | 2022-03-28 | 2023-10-05 | Stellantis Europe S.P.A. | A motor-vehicle interior component with a backlit decorative panel |
DE102022119959A1 (de) | 2022-08-09 | 2024-02-15 | Audi Aktiengesellschaft | Verfahren zur Herstellung eines Formteils, Formteil, Leuchteinrichtung und Kraftfahrzeug |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4317234C2 (de) * | 1993-05-24 | 1996-07-11 | Otto Gruenhagel | Vorrichtung zur Herstellung eines Umbuges an dekorbeschichteten Formteilen |
DE10009304C2 (de) | 2000-02-29 | 2002-03-21 | Montaplast Gmbh | Vorrichtung zum Herstellen eines zumindest einseitig mit einem Textil versehenen Kunststoff-Spritzgussteils |
DE102006005303B4 (de) * | 2006-02-06 | 2012-07-05 | Franz Josef Summerer | Verfahren zum Anspritzen einer Kunststoffkomponente an ein Kunststoffteil und mehrkomponentiges Kunststoff-Formteil |
CN101850591A (zh) * | 2009-04-06 | 2010-10-06 | 康准电子科技(昆山)有限公司 | 模内装饰成型方法及模制品 |
DE102011050585B4 (de) * | 2011-05-24 | 2014-05-08 | Kunststoff Helmbrechts Ag | Verfahren zur Herstellung eines Kunststoffformkörpers als Anzeige- und/oder Funktionselement und Kunststoffformkörper |
DE102012101315B4 (de) * | 2012-02-17 | 2018-07-05 | Novem Car Interior Design Gmbh | Formteil und Verfahren zur Herstellung eines Formteils |
DE102014100042A1 (de) | 2014-01-03 | 2015-07-09 | Novem Car Interior Design Gmbh | Formteil für einen Fahrzeuginnenraum |
US10611070B2 (en) * | 2017-01-03 | 2020-04-07 | Olbrich Gmbh | Method and apparatus for producing a trim component having a molded rim at an edge thereof |
DE102017115304A1 (de) * | 2017-07-07 | 2019-01-10 | Novem Car Interior Design Gmbh | Formteil, insbesondere als Formteil ausgebildetes Dekorteil und/oder Verkleidungsteil für einen Fahrzeuginnenraum, und Verfahren zum Herstellen eines derartigen Formteils |
EP3573043A3 (de) | 2019-07-19 | 2019-12-04 | WEIDPLAS GmbH | Bauteil mit basisteil, zusatzteil und deckschicht aus lack sowie verfahren zur herstellung eines solchen bauteils |
-
2020
- 2020-07-07 DE DE102020117815.8A patent/DE102020117815A1/de active Pending
-
2021
- 2021-07-02 WO PCT/EP2021/068405 patent/WO2022008389A1/de unknown
- 2021-07-02 EP EP21745920.5A patent/EP4271555A1/de active Pending
- 2021-07-02 CN CN202180048295.8A patent/CN115916514A/zh active Pending
- 2021-07-02 US US18/013,519 patent/US20230294341A1/en active Pending
Also Published As
Publication number | Publication date |
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CN115916514A (zh) | 2023-04-04 |
WO2022008389A1 (de) | 2022-01-13 |
US20230294341A1 (en) | 2023-09-21 |
DE102020117815A1 (de) | 2022-01-13 |
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