Motorized vehicle interior trim component

Abstract

The invention relates to a motor vehicle interior trim part (10), the motor vehicle interior trim part (10) having a layer structure, the layer structure comprising a decorative layer (11), the decorative layer (11) having a front side (12) configured as a visible side and a rear side (13) opposite the front side (12). The invention is characterized in that the motor vehicle interior part (10) has at least one shape memory material (15).

Description

[0001] The invention relates to a motor vehicle interior component according to the preamble of claim 1 .

[0002] In particular, motor vehicle interior components can be understood as decorative parts (also called trims) and / or covering parts of the vehicle interior. Many motor vehicle interior components are installed in the vehicle interior, such as door trims, console and instrument trims, and center console trims. Motor vehicle interior components also include operating buttons and their covers.

[0003] For such motor vehicle interior components, it is often necessary to integrate functions, such as light functions, heating functions, sound functions, or even (haptic) feedback functions of integrated switches.

[0004] The object of the present invention is to provide a new motor vehicle interior component, in particular a new motor vehicle interior component which allows functional integration with a low material consumption.

[0005] This object is achieved by a motor vehicle interior component having the features of claim 1. Advantageous embodiments and developments are specified in the respective dependent claims.

[0006] The motor vehicle interior component according to the invention has a layer structure comprising a decorative layer having a front side configured as a visible side and a rear side opposite the front side.

[0007] The invention is characterized in that the motor vehicle interior component has at least one shape-memory material, in particular a shape-memory material for functional implementation.

[0008] The invention is therefore particularly advantageous in that, by using a shape memory material, a function in a component can be realized with a relatively small amount of material. In addition, only a small installation space is required for this purpose.

[0009] In addition, with the aid of shape memory materials, in particular through the expansion of shape memory materials, a tactile effect can be achieved, which provides a feedback function for the user, so that, for example, when the driver operates functional elements (for example, functional elements in the area of ​​the center console, steering wheel, dashboard, backrest, headrest or door trim), he can obtain tactile feedback and thus avoid taking his eyes off the traffic situation.

[0010] Preferably, the decorative layer is or comprises: a wooden laminate and / or a plastic (e.g. a film) and / or a stone and / or a glass and / or a fabric and / or a cloth and / or a soft-touch material and / or a metal (in particular aluminium) and / or carbon. The decorative layer may also be configured to be transparent or translucent.

[0011] It can be provided that the decorative layer itself at least partially is a shape-memory material or comprises a shape-memory material, in particular if the decorative layer is a metal or comprises a metal.

[0012] The motor vehicle interior component can be a single-component component made of aluminum, for example. In this case, the decorative layer itself is preferably at least partially a shape-memory material.

[0013] According to a development of the invention, the shape memory material is introduced into the decorative layer and / or applied to the decorative layer, for example to the rear side of the decorative layer.

[0014] It can be provided that the shape memory material in or on the decorative layer, in particular when viewed from above a visible side of the motor vehicle interior component, preferably forms a symbol in the activated state. The symbol, viewed from above a visible side of the decorative layer, can be one or more functional symbols and / or geometric figures and / or shapes and / or logos and / or one or more letters and / or wordings and / or characters and / or logos and / or lines (in particular lines following shapes) and / or other design elements.

[0015] Preferably, the layer structure comprises a carrier layer arranged on the back side of the decorative layer, for example a carrier layer made of plastic or NFPP or a natural fiber injection molding material or a biomaterial.

[0016] The expression "on the rear side of the decorative layer" does not necessarily mean that the carrier layer must be arranged directly and / or directly adjacent to the rear side of the decorative layer. The carrier layer should only be arranged on the side of the decorative layer opposite the front side, which is configured as the visible side. Further layers, in particular intermediate layers, can also be arranged between the decorative layer and the carrier layer, so that the carrier layer is indirectly arranged on the rear side of the decorative layer.

[0017] It can be provided that the shape memory material is introduced into the carrier layer and / or is applied to the carrier layer, for example to the front side of the carrier layer.

[0018] Preferably, the layer structure comprises at least one further layer, in particular an adhesive layer and / or a nonwoven and / or a film, wherein the shape memory material is introduced into the further layer or into one or more further layers and / or is applied to the further layer or to one or more further layers.

[0019] It can be provided that the first adhesive layer and the second adhesive layer are arranged on the back side of the decorative layer. In particular, the first adhesive layer can be arranged on the back side of the decorative layer. The second adhesive layer can in turn be arranged on the back side of the first adhesive layer, in particular in sections. In addition, the nonwoven can be arranged on the back side of the decorative layer by means of the first adhesive layer and the second adhesive layer. As an alternative to the nonwoven, other stabilizing layers can also be provided.

[0020] One embodiment variant of the invention provides that the layer structure has an FGM layer (FGM: abbreviation for shape memory material) which is formed from a shape memory material. The FGM layer can be arranged, for example, on the rear side of the decorative layer.

[0021] Preferably, the optical function of the shape memory material is achieved by the shape memory material being introduced into a layer of the layer structure close to the visible surface or being applied to a layer of the layer structure close to the visible surface, in particular in order to produce the strongest possible optical effect on the visible surface of the motor vehicle interior component.

[0022] Shape memory materials introduced into the layer of the layer structure facing the visible surface or applied to the layer of the layer structure facing the visible surface are also advantageous for haptic effects, in particular since the reversible expansion has a limited nature.

[0023] The heating function by means of the shape memory material is also preferably realized by the shape memory material introduced into the layer close to the visible surface or applied to the layer close to the visible surface, in particular in order to ensure the most effective radiation possible.

[0024] For example, the layer close to the visible surface can be a decorative layer and / or an adhesive layer and / or a nonwoven fabric.

[0025] It can be provided that the FGM layer constitutes a light shield with a darkening effect, wherein the light shield is at least partially transparent or translucent when the shape memory material is energized, and is opaque or at least partially opaque when the shape memory material is not energized, or alternatively, the light shield is opaque or at least partially opaque when the shape memory material is energized, and is at least partially transparent or translucent when the shape memory material is not energized.

[0026] The light shield can also be designed dynamically, in particular so that it is transparent or translucent in changing sections, in particular over time, and opaque in other sections. For this purpose, a series connection is preferably provided, in particular a series connection of a plurality of shape memory materials, which preferably have separate control devices.

[0027] It can be provided that the shape memory material is or comprises a metallic shape memory material (in particular, for example, stamped metal sheets and / or wire mats) and / or a metal alloy and / or particles and / or components of particles and / or a shape memory polymer and / or a magnetic shape memory material and / or a piezoelectric shape memory material and / or an electroactive polymer. The shape memory material can also be mixed into the particles as an additive.

[0028] If the shape memory material is a stamped metal sheet, one or more sections of the metal sheet may be activated when an electrical current is applied, causing the sections to change shape.

[0029] According to an embodiment variant of the invention, the motor vehicle interior component comprises one or more activation devices for controlling the shape memory material by means of pulses, wherein the pulses are realized by means of light and / or electromagnetic waves and / or electricity and / or temperature and / or force and / or acoustics and / or sensor technology.

[0030] Preferably, the shape memory material is configured to realize a deformation function and / or a light function and / or a sound function and / or a tactile effect, in particular by expansion of the shape memory material, and / or is configured to realize a heating function, in particular by heating up when the shape memory material expands, preferably after electrical control.

[0031] In particular, haptic effects may be provided to the user in or at or near the switches and / or sensors as a feedback function and / or sensory aid.

[0032] It may be provided that the motor vehicle interior component comprises an electrical or electronic control device for the shape memory material.

[0033] Preferably, the motor vehicle interior component comprises one or more light elements (eg LEDs) and / or one or more sensor elements and / or one or more heating elements.

[0034] One or more light elements and / or one or more sensor elements can be integrated into the carrier layer or arranged on the carrier layer, in particular on the back side of the carrier layer.

[0035] For example, one or more light elements and / or one or more sensor elements and / or one or more heating elements may be used for activating the shape memory material and thereby in particular constitute the activation means. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Other features and advantages of the present invention will be explained in more detail below based on the description of the embodiments and with reference to the attached schematic drawings.

[0037] Figure 1 A schematic cross-sectional view of a detail of a motor vehicle interior component 10 according to the invention is shown.

[0038] The motor vehicle interior component 10 according to the invention has a layer structure, wherein the layer structure comprises a decorative layer 11, which has a front side 12 configured as a visible surface and a back side 13 opposite the front side 12. The decorative layer 11 is preferably a wooden laminate. In addition, the layer structure also comprises a carrier layer 14, for example a carrier layer made of plastic, arranged on the back side 13 of the decorative layer 11.

[0039] The layer structure also includes three other layers: a first adhesive layer 17', a second adhesive layer 17", and a non-woven fabric 18. The first adhesive layer 17' and the second adhesive layer 17" are arranged on the back side 13 of the decorative layer 11. The first adhesive layer 17' is arranged directly on the back side 13 of the decorative layer 11, while the second adhesive layer 17" is arranged in sections on the back side of the first adhesive layer 17'. By attaching the second adhesive layer 17" in sections, an open surface is formed in the layer, which can form a symbol when viewed from above the visible surface of the decorative layer 11. In addition, the non-woven fabric 18 is arranged on the back side 13 of the decorative layer 11 with the aid of the first adhesive layer 17' and the second adhesive layer 17". The decorative layer 11 and the first adhesive layer 17' are preferably at least translucent. The second adhesive layer 17" can be configured to be opaque. In addition, the non-woven fabric 18 and the carrier layer 14 can be configured to be at least translucent.

[0040] According to the invention, the motor vehicle interior component 10 has a shape memory material 15 for functional implementation, wherein the shape memory material 15 is introduced into the second adhesive layer 17 ″. In addition to the shape memory material, other materials may also be introduced into the second adhesive layer 17 ″.

[0041] The motor vehicle interior component 10 comprises a plurality of light elements 19 configured as LEDs. The light elements 19 are arranged on the back side 20 of the carrier layer 14. The light elements 19 can be used to activate the shape memory material 15 by means of a pulse, wherein the pulse is realized by means of light and / or electromagnetic waves. Alternatively or additionally, the motor vehicle interior component 10 can include an electrical or electronic control device (not shown in the figure) for the shape memory material.

[0042] The shape memory material 15 is configured to realize a deformation function. When the shape memory material 15 is activated, it causes the second adhesive layer 17 ″ to expand in the horizontal direction H and the vertical direction V.

[0043] If the decorative layer 11, the first adhesive layer 17', the nonwoven fabric 18 and the carrier layer 14 are constructed to be translucent, and the second adhesive layer 17" is constructed to be opaque, when the second adhesive layer 17" expands due to the activation of the shape memory material 15, in particular, when the open surface in the second adhesive layer 17" (through which the light emitted from the light element 19 passes) becomes smaller, the symbol formed by the segmented application of the second decorative layer 17" will change under the backlighting of the light element 19. In this way, the size of the symbol highlighted by the backlighting can be changed.

[0044] Reference Mark List

[0045] 10 Motor vehicle interior parts

[0046] 11 Decorative layer

[0047] 12 front (decorative layer)

[0048] 13 Back side (decorative layer)

[0049] 14 Carrier layer

[0050] 15 Shape memory materials

[0051] 16 front side (carrier layer)

[0052] 17' adhesive layer

[0053] 17” adhesive layer

[0054] 18 Non-woven fabric

[0055] 19 Optical Components

[0056] 20 back side (carrier layer)

[0057] H Horizontal direction

[0058] V Vertical direction.

Claims

1. A motor vehicle interior component (10), in, The motor vehicle interior component (10) has a layer structure, wherein the layer structure comprises a decorative layer (11), the decorative layer (11) having a front side (12) configured as a visible surface and a back side (13) opposite the front side (12), It is characterized in that The motor vehicle interior component (10) comprises at least one shape-memory material (15).

2. The motor vehicle interior component (10) according to claim 1, characterized in that The shape memory material (15) is introduced into the decorative layer (11) and / or applied to the decorative layer (11).

3. The motor vehicle interior component (10) according to claim 1 or 2, characterized in that: The layer structure comprises a carrier layer (14) which is arranged on the back side (13) of the decorative layer (11).

4. The motor vehicle interior component (10) according to claim 3, characterized in that The shape memory material (15) is introduced into the carrier layer (14) and / or applied to the carrier layer (14).

5. The motor vehicle interior component (10) according to any one of the preceding claims, characterized in that The layer structure comprises at least one further layer, wherein the shape memory material (15) is introduced into the further layer or into one or more further layers and / or is applied to the further layer or to one or more further layers.

6. The motor vehicle interior component (10) according to any one of the preceding claims, characterized in that The layer structure comprises an FGM layer, wherein the FGM layer is formed from the shape memory material (15).

7. The motor vehicle interior component (10) according to claim 6, characterized in that The FGM layer forms a light mask with a darkening effect, wherein the light mask is transparent or translucent when the shape memory material (15) is energized, and is opaque or at least partially opaque when the shape memory material (15) is not energized.

8. The motor vehicle interior component (10) according to any one of the preceding claims, characterized in that The shape memory material (15) is or includes: a metallic shape memory material and / or a metal alloy and / or particles and / or a component of particles and / or a shape memory polymer and / or a magnetic shape memory material and / or a piezoelectric shape memory material and / or an electroactive polymer.

9. The motor vehicle interior component (10) according to any one of the preceding claims, characterized in that The motor vehicle interior component (10) comprises one or more activation devices for controlling the shape memory material by means of pulses, wherein the pulses are realized by means of light and / or electromagnetic waves and / or electricity and / or temperature and / or force and / or acoustics and / or sensor technology.

10. The motor vehicle interior component (10) according to any one of the preceding claims, characterized in that The shape memory material (15) is configured to realize a deformation function and / or a light function and / or a sound function and / or a tactile effect and / or a heating function.

11. The motor vehicle interior component (10) according to any one of the preceding claims, characterized in that The motor vehicle interior component (10) comprises an electrical or electronic control device for the shape memory material (15).

12. The motor vehicle interior component (10) according to any one of the preceding claims, characterized in that The motor vehicle interior component (10) comprises one or more light elements (19) and / or one or more sensor elements and / or one or more heating elements.

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